Objective Biology for NEET

Rajiv Vijay

Chapter 8

Cell: The Unit of Life - all with Video Answers

Educators

Chapter Questions

Problem 1

Which of the following organisms are not composed of cells?
(a) Amoeba
(b) Paramecium
(c) Euglena
(d) None of these

Mithlesh Kumari

Mithlesh Kumari

Numerade Educator

Problem 2

Unicellular organisms are not capable of
(a) Independent existence
(b) Performing essential functions of life
(c) Both (a) and (b)
(d) None of these

Mithlesh Kumari

Mithlesh Kumari

Numerade Educator

Problem 3

Who was the first one to see a live cell?
(a) Robert Hook
(b) Leeuwenhoek
(c) Robert Brown
(d) None of these

Mithlesh Kumari

Mithlesh Kumari

Numerade Educator

Problem 4

Who was the German botanist to study the different cells forming plant tissues?
(a) Schleiden
(b) Schwann
(c) Rudolf Virchow
(d) None of these

Mithlesh Kumari

Mithlesh Kumari

Numerade Educator

Problem 5

In which year Matthias Schleiden examined a large number of plants and observed that all plants are composed of different kinds of cells which form the tissues of the plant?
(a) 1638
(b) 1738
(c) 1838
(d) 1938

Mithlesh Kumari

Mithlesh Kumari

Numerade Educator

Problem 6

In which year Schwann studied different types of animal cells?
(a) 1839
(b) 1739
(c) 1639
(d) 1938

Mithlesh Kumari

Mithlesh Kumari

Numerade Educator

Problem 7

The cell has a thin outer layer which is known as 'Plasma membrane'. Who reported this?
(a) Schleiden
(b) Schwann
(c) Virchow
(d) Robert Hooke

Mithlesh Kumari

Mithlesh Kumari

Numerade Educator

Problem 8

'Cell wall is a unique structure of plant cells'. Who concluded this?
(a) Schleiden
(b) Schwann
(c) Both (a) and (b)
(d) None of these

Mithlesh Kumari

Mithlesh Kumari

Numerade Educator

Problem 9

Who proposed the hypothesis that the bodies of animals and plants are composed of cells and product of cells?
(a) Schleiden
(b) Schwann
(c) Both (a) and (b)
(d) None of these

Mithlesh Kumari

Mithlesh Kumari

Numerade Educator

Problem 10

Who formulated the cell theory?
(a) Schleiden
(b) Schwann
(c) Both (a) and (b)
(d) None of these

Mithlesh Kumari

Mithlesh Kumari

Numerade Educator

Problem 11

'Omnis cellula e cellula' was given in the year
(a) 1756
(b) 1855
(c) 1945
(d) 1839

Mithlesh Kumari

Mithlesh Kumari

Numerade Educator

Problem 12

Who was the one to describe that cells divided and new cells are formed from pre-existing cells?
(a) Schleiden
(b) Schwann
(c) Virchow
(d) All of these

Mithlesh Kumari

Mithlesh Kumari

Numerade Educator

Problem 13

Which of the following statement is not a part of final cell theory?
(a) Cell has a thin outer layer called plasma membrane.
(b) All living organisms are made up of cells and products of cells
(c) All cells arise from pre-existing cells.
(d) All of these

Mithlesh Kumari

Mithlesh Kumari

Numerade Educator

Problem 14

What is the outer covering of typical plant cell?
(a) Cell wall externally
(b) Plasma membrane externally
(c) Cell wall internally
(d) Cell wall externally, plasma membrane internally

Mithlesh Kumari

Mithlesh Kumari

Numerade Educator

Problem 15

\text { Identify the A, B, C and D in the given figure. }(a) A-WBC, B-Mesophyll cell, C-RBC, D-Columnar Epithelial cells
(b) A-Columnar epithelial cells, B-Mesophyll cell, C-WBC, D-RBC
(c) A-Mesophyll cell, B-WBC, C-Columnar epithelial cells, D-WBC
(d) A-RBC, B-Columnar epithelial cells, C-Mesophyll Cell, D-WBC

Qudsiya Anis

Numerade Educator

Problem 16

In each cheek cell, there is a dense membrane bound structure which contains chromosome. This structure is
(a) Endoplasmic reticulum
(b) Golgi bodies
(c) Nucleus
(d) Mitochondria

Mithlesh Kumari

Mithlesh Kumari

Numerade Educator

Problem 17

What does a nucleus of a typical animal cell contain?
(a) Chromosomes
(b) Genes
(c) DNA
(d) All of these

Mithlesh Kumari

Mithlesh Kumari

Numerade Educator

Problem 18

The cell containing membrane bound nucleus can be called
(a) Eukaryotic
(b) Prokaryotic
(c) Both (a) and (b)
(d) None of these

Mithlesh Kumari

Mithlesh Kumari

Numerade Educator

Problem 19

\text { Identify the figure given below. }(a) Tracheid
(b) Nerve Cell
(c) Lipid bilayer
(d) None of these

Qudsiya Anis

Numerade Educator

Problem 20

If volume of the cell is filled with semi-fluid matrix called cytoplasm, what kind of cell is it?
(a) Eukaryotic
(b) Prokaryotic
(c) Both (a) and (b)
(d) None of these

Mithlesh Kumari

Mithlesh Kumari

Numerade Educator

Problem 21

\text { Identify the given below figure. }(a) A tracheid
(b) A vessel
(c) A parenchyma cell
(d) A sieve cell

Qudsiya Anis

Numerade Educator

Problem 22

What is the main arena of cellular activities in eukaryotic cells?
(a) Nucleus
(b) Cytoplasm
(c) Plasma membrane
(d) All of these

Mithlesh Kumari

Mithlesh Kumari

Numerade Educator

Problem 23

In an eukaryotic cell, where does the various chemical reactions occur to keep the cell in living state?
(a) Nucleus
(b) Cytoplasm
(c) Mitochondria
(d) All of these

Mithlesh Kumari

Mithlesh Kumari

Numerade Educator

Problem 24

How many of the following organelles are found in prokaryotic cells? ER, Golgi complex, Lysosome, Mitochondria, Microbodies, Vacuoles
(a) 1
(b) 3
(c) 4
(d) 0

Qudsiya Anis

Numerade Educator

Problem 25

Where are the ribosomes found in prokaryotic cells?
(a) Cytoplasm
(b) Mitochondria
(c) Chloroplast
(d) All of these

Mithlesh Kumari

Mithlesh Kumari

Numerade Educator

Problem 26

Where are ribosomes found in eukaryotic cells?
(a) Cytoplasm
(b) Mitochondria
(c) Chloroplast
(d) All of these

Mithlesh Kumari

Mithlesh Kumari

Numerade Educator

Problem 27

How many of the following are membrane bound organelles? Lysosomes, Ribosomes, Mitochondria, Vacuoles
(a) 2
(b) 3
(c) 4
(d) 0

Mithlesh Kumari

Mithlesh Kumari

Numerade Educator

Problem 28

Which of the following organelle is exclusively found in animal cells?
(a) Mitochondria
(b) Chloroplast
(c) Vacuole
(d) Centriole

Mithlesh Kumari

Mithlesh Kumari

Numerade Educator

Problem 29

Which of the following is incorrect?
(a) Smallest cell $\rightarrow$ Mycoplasma
(b) Smallest cell $\rightarrow$ Bacteria
(c) Largest single cell $\rightarrow$ Ostrich's egg
(d) None of these

Qudsiya Anis

Numerade Educator

Problem 30

What is the length of mycoplasm cell?
(a) $300 \mathrm{~mm}$
(b) $0.3 \mu \mathrm{m}$
(c) $3000 \mathrm{~cm}$
(d) All of these

Mithlesh Kumari

Mithlesh Kumari

Numerade Educator

Problem 31

What could be the length of bacterial cell?
(a) 3 to $5 \mathrm{~mm}$
(b) 3 to $5 \mu \mathrm{m}$
(c) $3.5 \mathrm{~cm}$
(d) None of these

Mithlesh Kumari

Mithlesh Kumari

Numerade Educator

Problem 32

Diameter of an $\mathrm{RBC}$ is
(a) $7 \mu \mathrm{m}$
(b) $700 \mathrm{~mm}$
(c) $6 \mu \mathrm{m}$
(d) $6000 \mathrm{~mm}$

Mithlesh Kumari

Mithlesh Kumari

Numerade Educator

Problem 33

The longest cells in human body are
(a) Muscle cells
(b) Cardiac muscle cells
(c) Neurons
(d) None of these

Mithlesh Kumari

Mithlesh Kumari

Numerade Educator

Problem 33

The longest cells in human body are
(a) Muscle cells
(b) Cardiac muscle cells
(c) Neurons
(d) None of these

Mithlesh Kumari

Mithlesh Kumari

Numerade Educator

Problem 34

Which of the following is incorrect matching?
(a) Round and biconcave $-\mathrm{RBC}$
(b) Amoeboid - WBC
(c) Elongated - Tracheid
(d) Long and narrow - Nerve cells

Qudsiya Anis

Numerade Educator

Problem 35

\text { Identify the } \mathrm{A}, \mathrm{B}, \mathrm{C}, \mathrm{D} \text { and } \mathrm{E} \text { in this figure. }(a) A-Rough endoplasmic reticulum, B-Smooth endoplasmic reticulum, C-Nuclear envelope, D-Microtubule, E-Nucleolus
(b) A-Smooth endoplasmic reticulum, B-Rough endoplasmic reticulum, C-Microtubule, D-Nuclear envelope, E-Nucleolus
(c) A-Nucleolus, B-Microtubule, C-Smooth endoplasmic reticulum, D-Nuclear envelope, E-Rough endoplasmic reticulum
(d) A-Rough endoplasmic reticulum, B-Nucleolus, C-Microtubule, D-Smooth endoplasmic reticulum, E-Microtubule

Qudsiya Anis

Numerade Educator

Problem 36

Which of the following cells are round and oval?
(a) $\mathrm{RBCs}$
(b) $\mathrm{WBCs}$
(c) Columnar cells
(d) Mesophyll cells

Qudsiya Anis

Numerade Educator

Problem 37

Which of the following are long and narrow cells?
(a) Nerve cells
(b) WBC
(c) Columnar epithelial cells
(d) Tracheid

Qudsiya Anis

Numerade Educator

Problem 38

Which of the following represent prokaryotic cell?
(a) Blue-green algae
(b) PPLO
(c) Bacteria
(d) All of these

Mithlesh Kumari

Mithlesh Kumari

Numerade Educator

Problem 39

\text { Identify the } \mathrm{A}, \mathrm{B}, \mathrm{C}, \mathrm{D} \text { and } \mathrm{E} \text { in this figure. }(a) A-Smooth endoplasmic reticulum, B-Centriole, C-Golgi apparatus, D-Rough endoplasmic reticulum, E-Ribosomes
(b) A-Centriole, B-Smooth endoplasmic reticulum, C-Golgi apparatus, D-Ribosomes, E-Rough endoplasmic reticulum
(c) A-Rough endoplasmic reticulum, B-Smooth endoplasmic reticulum, C-Ribosomes, D-Centriole, E-Golgi apparatus,
(d) A-Centriole, B-Rough endoplasmic reticulum, C-Golgi apparatus, D-Smooth endoplasmic reticulum, E-Ribosomes

Qudsiya Anis

Numerade Educator

Problem 40

What is true for a prokaryotic cell?
(a) They are smaller in size
(b) Multiply much rapidly than eukaryotes
(c) Greatly vary in shape and size
(d) All of these

Mithlesh Kumari

Mithlesh Kumari

Numerade Educator

Problem 41

What is the size of a typical eukaryotic cell?
(a) $1-2 \mu \mathrm{m}$
(b) $10-20 \mu \mathrm{m}$
(c) $10-20 \mathrm{~mm}$
(d) $1-2 \mathrm{~mm}$

Qudsiya Anis

Numerade Educator

Problem 42

How much is the size of typical bacteria?
(a) $1-2 \mu \mathrm{m}$
(b) $10-20 \mu \mathrm{m}$
(c) $10-20 \mathrm{~mm}$
(d) $1-2 \mathrm{~mm}$

Qudsiya Anis

Numerade Educator

Problem 43

How much is the size of viruses?
(a) $0.02-0.2 \mu \mathrm{m}$
(b) $0.2-0.4 \mu \mathrm{m}$
(c) $0.02-0.04 \mu \mathrm{m}$
(d) None

Qudsiya Anis

Numerade Educator

Problem 44

What is a genomic DNA of bacteria?
(a) Circular DNA
(b) Single stranded DNA
(c) Both (a) and (b)
(d) ds DNA, linear

Qudsiya Anis

Numerade Educator

Problem 45

Where is the genetic material located in prokaryotes?
(a) Nucleus
(b) Enveloped by nuclear membrane
(c) Naked in cytoplasm
(d) None of these

Qudsiya Anis

Numerade Educator

Problem 46

What are plasmids?
(a) Naked genomic DNA
(b) Smaller DNA than genomic DNA
(c) Enveloped DNA
(d) None of these

Mithlesh Kumari

Mithlesh Kumari

Numerade Educator

Problem 47

Resistance to antibiotics is conferred by
(a) Plasmid DNA
(b) Chromosome
(c) Both (a) and (b)
(d) None of these

Qudsiya Anis

Numerade Educator

Problem 48

Which is the common organelles that are found in both eukaryotes and prokaryote?
(a) Lysosome
(b) Ribosome
(c) Vacuole
(d) Mitochondria

Mithlesh Kumari

Mithlesh Kumari

Numerade Educator

Problem 49

What is a specialized differentiated form of cell membrane?
(a) Plasmid
(b) Nucleosome
(c) Mesosome
(d) All of these

Mithlesh Kumari

Mithlesh Kumari

Numerade Educator

Problem 50

Infoldings of cell membrane in prokaryotic is called
(a) Mesosomes
(b) Lysosomes
(c) Both (a) and (b)
(d) None of these

Mithlesh Kumari

Mithlesh Kumari

Numerade Educator

Problem 51

What is external to cell wall in a prokaryotic cell?
(a) Glycocalyx layer
(b) Plasma membrane
(c) Both (a) and (b)
(d) None of these

Mithlesh Kumari

Mithlesh Kumari

Numerade Educator

Problem 52

Select the incorrect statement:
(a) Glycocalyx differs in composition and thickness among different bacteria.
(b) All organism are made of cells or aggregates of cells.
(c) ER helps in synthesis of proteins, lipoproteins and glycogen.
(d) Cells of all living organisms have nuclues

Qudsiya Anis

Numerade Educator

Problem 53

What is external to the plasma membrane in a prokaryotic cell like bacteria?
(a) Glycocalyx layer
(b) Cell wall
(c) Both (a) and (b)
(d) None of these

Mithlesh Kumari

Mithlesh Kumari

Numerade Educator

Problem 54

What is external to glycocalyx layer in prokaryotic cell like bacteria?
(a) Cell wall
(b) Plasma membrane
(c) Both
(d) None of these

Qudsiya Anis

Numerade Educator

Problem 55

What is external to plasma membrane and internal to glycocalyx layer?
(a) Capsule
(b) Cell wall
(c) Cellular matrix
(d) None of these

Mithlesh Kumari

Mithlesh Kumari

Numerade Educator

Problem 56

What is the basis of classification of bacteria's into gram +ve or gram $-$ ve?
(a) Cell wall
(b) Glycocalyx layer
(c) Plasma membrane
(d) All of these

Mithlesh Kumari

Mithlesh Kumari

Numerade Educator

Problem 57

A bacterial cell was taken and gram staining was done and observed that it did not take up gram stain such a bacteria is known as
(a) Gram positive
(b) Gram negative
(c) Non-effective to gram stain
(d) None of these

Qudsiya Anis

Numerade Educator

Problem 58

Which of the following statement is not true?
(a) Response to gram stain is due to the cell envelop.
(b) The cell envelope act as a single protective unit.
(c) The glycocalyx layer is similar in all the bacteria.
(d) None of these

Mithlesh Kumari

Mithlesh Kumari

Numerade Educator

Problem 59

A loose sheath of glycocalyx layer is called
(a) Plasma membrane
(b) Capsule
(c) Slime layer
(d) Cell wall

Mithlesh Kumari

Mithlesh Kumari

Numerade Educator

Problem 60

What is a thick, tough, layer of glycocalyx known as?
(a) Slime layer
(b) Capsule
(c) Cell wall
(d) Cell envelope

Mithlesh Kumari

Mithlesh Kumari

Numerade Educator

Problem 61

Which of the following is not the function of cell wall?
(a) Interaction with outside world
(b) Provide structural support and shape
(c) Prevent from bursting and collapsing
(d) Exchange of nutrition takes place through it

Qudsiya Anis

Numerade Educator

Problem 62

Which of the following is a form of mesosome?
(a) Vesicles
(b) Tubules
(c) Lamellae
(d) All of these

Mithlesh Kumari

Mithlesh Kumari

Numerade Educator

Problem 63

Which of the following is a function of mesosome?
(a) Cell wall formation
(b) DNA replication and its distribution to daughter cells
(c) Both (a) and (b)
(d) None of these

Mithlesh Kumari

Mithlesh Kumari

Numerade Educator

Problem 64

Which of the following helps in respiration, secretion process,and increase the surface area for enzymatic content?
(a) Plasma membrane
(b) Cell wall
(c) Mesosomes
(d) Glycocalyx layer

Mithlesh Kumari

Mithlesh Kumari

Numerade Educator

Problem 65

In which organisms the pigment containing chromatophores are found?
(a) Algae
(b) Cyanobacteria
(c) Green algae
(d) Amoeba

Qudsiya Anis

Numerade Educator

Problem 66

A thin, filamentous extension of cell wall required for a bacterial motility is called
(a) Hook
(b) Flagella
(c) Tail
(d) Mesosome

Qudsiya Anis

Numerade Educator

Problem 67

Which of the following is not a part of bacteria flagellum?
(a) Filament
(b) Hook
(c) Basal body
(d) None

Qudsiya Anis

Numerade Educator

Problem 68

Of all the parts of flagellum, which one is the longest?
(a) Filament
(b) Hook
(c) Basal body
(b) Fimbriae

Qudsiya Anis

Numerade Educator

Problem 69

Which of the following surface structure of bacteria does not take part in motility?
(a) Flagella
(b) Pilli
(c) Fimbriae
(d) Both (b) and (c)

Qudsiya Anis

Numerade Educator

Problem 70

Which is the elongated tubular structure made of special protein on the surface of bacterial cell?
(a) Flagella
(b) Fimbriae
(c) Pilli
(d) All of these

Qudsiya Anis

Numerade Educator

Problem 71

What is the small bristle like structures or fibres sprouting out of the cell?
(a) Flagella
(b) Fimbriae
(c) Pilli
(d) All of these

Qudsiya Anis

Numerade Educator

Problem 72

In prokaryotes, the ribosomes are associated with which structure of cell?
(a) Cell wall
(b) Mesosome
(c) Lysosomes
(d) Plasma membrane

Qudsiya Anis

Numerade Educator

Problem 73

What is the size of ribosomes?
(a) $10-20 \mu \mathrm{m}$
(b) $15-20 \mathrm{~nm}$
(c) $10-20 \mathrm{~nm}$
(d) $15-20 \mathrm{~cm}$

Qudsiya Anis

Numerade Educator

Problem 74

In 70 S prokaryotic ribosomes, what are the sub units present in them?
(a) $50 \mathrm{~S}$ and $20 \mathrm{~S}$
(b) $50 \mathrm{~S}$ and $30 \mathrm{~S}$
(c) $40 \mathrm{~S}$ and $30 \mathrm{~S}$
(d) $60 \mathrm{~S}$ and $30 \mathrm{~S}$

Qudsiya Anis

Numerade Educator

Problem 75

A polysome is a chained structure of which organelle?
(a) Lysosome
(b) Mesosome
(c) Ribosome
(d) All of these

Qudsiya Anis

Numerade Educator

Problem 76

In polyribosome, the ribosomes attach to which RNA?
(a) $\mathrm{m}$ -RNA
(b) t-RNA
(c) r-RNA
(d) All of these

Qudsiya Anis

Numerade Educator

Problem 77

In what form, the reserve material in prokaryotic cells are stored in cytoplasm?
(a) Lysosome
(b) Mesosome
(c) Ribosome
(d) Inclusion bodies

Qudsiya Anis

Numerade Educator

Problem 78

Which of the following are not inclusion bodies?
(a) Phosphate granules
(b) Cyanophycean granules
(c) Glycogen granules
(d) Glucose granules

Qudsiya Anis

Numerade Educator

Problem 79

Gas vacuoles are found in
(a) Blue-green bacteria
(b) Purple bacteria
(c) Green photosynthetic bacteria
(d) All of these

Mithlesh Kumari

Mithlesh Kumari

Numerade Educator

Problem 80

Which of the following does not belong to eukaryote?
(a) Protists
(b) Bacteria
(c) Fungi
(d) All of these

Qudsiya Anis

Numerade Educator

Problem 81

In eukaryotic cells, why there is an extensive compartmentalization of cytoplasm?
(a) Due to the presence of fibres
(b) Due to the presence of so many organelles
(c) Due to the presence of membranous organelles
(d) All of these

Qudsiya Anis

Numerade Educator

Problem 82

The chemical studies on cell membrane that was deduced to its possible structure was mostly done on which cells?
(a) $\mathrm{WBC}$
(b) Human erythrocytes
(c) Platelets
(d) Cheek cells

Qudsiya Anis

Numerade Educator

Problem 83

In plasma membrane, the lipids have their polar heads facing
(a) Outer side
(b) Inner side
(c) In the middle
(d) Stable facing nowhere

Qudsiya Anis

Numerade Educator

Problem 84

The lipid component of plasma membrane will be mainly constituted of
(a) Glycolipids
(b) Glycogen
(c) Phosphoglycerides (d) All of these

Qudsiya Anis

Numerade Educator

Problem 85

\text { Identify the } \mathrm{A}, \mathrm{B}, \mathrm{C} \text { and } \mathrm{D} \text { in this figure. }(a) A-Lipid bilayer, B-Protein, C-Sugar, D-Cholesterol
(b) A-Protein, B-Lipid bilayer, C-Cholesterol, D-Sugar
(c) A-Protein, B-Sugar, C-Lipid bilayer, D-Cholesterol
(d) A-Cholesterol, B-Protein, C-Sugar, D-Lipid bilayer

Qudsiya Anis

Numerade Educator

Problem 86

Which of the following are not the component of plasma membrane?
(a) Sugar
(b) Protein
(c) Cholesterol
(d) None of these

Qudsiya Anis

Numerade Educator

Problem 87

What is the percentage of proteins and lipids in an RBC membrane respectively?
(a) $52 \%, 40 \%$
(b) $50 \%, 40 \%$
(c) $50 \%, 42 \%$
(d) $52 \%, 42 \%$

Qudsiya Anis

Numerade Educator

Problem 88

Which of the following membrane proteins lie on the surface of the cell?
(a) Integral proteins
(b) Peripheral proteins
(c) Both (a) and (b)
(d) Glycoproteins

Qudsiya Anis

Numerade Educator

Problem 89

Which of the following membrane proteins are partially or totally buried in cell membrane?
(a) Integral proteins
(b) Peripheral proteins
(c) Both (a) and (b)
(d) Glycoproteins

Qudsiya Anis

Numerade Educator

Problem 90

The fluid mosaic model was given by Singer and Nicolson in the year
(a) 1972
(b) 1976
(c) 1982
(d) 1986

Qudsiya Anis

Numerade Educator

Problem 91

The ability of proteins to move laterally within the membrane is measured as
(a) Mobility
(b) Flexibility
(c) Fluidity
(d) None of these

Qudsiya Anis

Numerade Educator

Problem 92

For what reason, the fluid nature of membrane is important?
(a) Cell growth
(b) Secretions
(c) Endocytosis
(d) All of these

Qudsiya Anis

Numerade Educator

Problem 93

The most important function of plasma membrane is that it
(a) Divides the cell
(b) Gives shape to the cell
(c) Transports the molecules across
(d) Both (a) and (b)

Qudsiya Anis

Numerade Educator

Problem 94

In which kind of transport, the molecules move across without the utilization of energy?
(a) Passive transport
(b) Osmosis
(c) Both (a) and (b)
(d) Active transport

Qudsiya Anis

Numerade Educator

Problem 95

Movement of water across the plasma membrane occurs by
(a) Passive transport
(b) Osmosis
(c) Active transport
(d) All of these

Qudsiya Anis

Numerade Educator

Problem 96

In which kind of transport, the molecules will go against the concentration gradient?
(a) Passive transport
(b) Active transport
(c) Facilitated transport
(d) All of these

Qudsiya Anis

Numerade Educator

Problem 97

In which of the following does active transport take place?
(a) Pumps
(b) Carrier protein transport
(c) Ion channels
(d) Diffusion

Qudsiya Anis

Numerade Educator

Problem 98

The functions of cell wall in eukaryotic cells
(a) Give shape to cell
(b) Prevent from mechanical damage
(c) Protects from infection
(d) All of these

Qudsiya Anis

Numerade Educator

Problem 99

Which of the following organisms have cell wall made up of cellulose, galactans, mannans, and minerals like calcium carbonates?
(a) Fungi
(b) Plants
(c) Algae
(d) All of these

Qudsiya Anis

Numerade Educator

Problem 100

Which of the following organisms have cell wall made up of cellulose, hemicelluloses, pectins and proteins?
(a) Fungi
(b) Plants
(c) Algae
(d) All of these

Qudsiya Anis

Numerade Educator

Problem 101

Which of the following wall is capable of growth in a plant cell?
(a) Primary wall
(b) Secondary wall
(c) Both (a) and (b)
(d) Middle lamella

Qudsiya Anis

Numerade Educator

Problem 102

What is the component of middle lamella that puts the different binds neighbouring cells together?
(a) Calcium phosphate
(b) Sodium pectate
(c) Calcium pectate
(d) Sodium phosphate

Qudsiya Anis

Numerade Educator

Problem 103

A structure that is traversing the middle lamella and connecting the cytoplasm of neighbouring cells is called
(a) Primary wall junction
(b) Plasmodesmata
(c) Desmosomes
(d) Secondary wall

Qudsiya Anis

Numerade Educator

Problem 104

\text { Identify the } \mathrm{A}, \mathrm{B}, \mathrm{C}, \mathrm{D} \text { and } \mathrm \text { in this figure. }$\mathrm{E}$
(a) A-Nuclear pore, B-Nucleus, C-Ribosome, D-Smooth endoplasmic reticulum, E-Rough endoplasmic reticulum
(b) A-Rough endoplasmic reticulum, B-Nuclear pore, C-Ribosome, D-Smooth endoplasmic reticulum, E-Nucleus
(c) A-Ribosome, B-Nuclear pore, C-Nucleus, D-Smooth endoplasmireticulum, E-Rough endoplasmic reticulum
(d) A-Nucleus, B-Nuclear pore, C-Rough endoplasmic reticulum, D-Ribosome, E-Smooth endoplasmic reticulum

Qudsiya Anis

Numerade Educator

Problem 105

How many of the following are not included in endomembrane system? Endoplasmic Reticulum, Golgi complex, Lysosome, Mitochondria, Chloroplast, Vacuoles, Peroxisomes
(a) 2
(b) 3
(c) 4
(d) 5

Qudsiya Anis

Numerade Educator

Problem 106

What is the network of tiny tubular structures scattered in cytoplasm as seen from electron microscope?
(a) Golgi complex
(b) Microtubules
(c) Endoplasmic reticulum
(d) Mitochondria

Qudsiya Anis

Numerade Educator

Problem 107

\text { What indicates } \mathrm{A} \text { in the figure? }(a) Cisternae
(b) Nuclear pore
(c) Crista
(d) Thylakoid

Qudsiya Anis

Numerade Educator

Problem 108

Which side in a cell does luminal and extra luminal compartments are situated respectively?
(a) Cytoplasm, inside ER
(b) Inside ER, cytoplasm
(c) cytoplasm, plasma membrane
(d) Nucleus, cytoplasm

Qudsiya Anis

Numerade Educator

Problem 109

Rough endoplasmic reticulum is called so due to the presence of
(a) Lysosome
(b) Golgi granules
(c) Ribosomes
(d) Protein granules

Qudsiya Anis

Numerade Educator

Problem 110

RER is frequently seen in cells associated with frequent synthesis and secretion of
(a) Lipid
(b) Glucose
(c) Protein
(d) All of these

Qudsiya Anis

Numerade Educator

Problem 111

SER is frequently associated with the synthesis of
(a) Lipid
(b) Glucose
(c) Protein
(d) All of these

Qudsiya Anis

Numerade Educator

Problem 112

What is the diameter of cisternae?
(a) $0.5$ to $1 \mu \mathrm{m}$
(b) $0.5$ to $1 \mathrm{~mm}$
(c) $0.5$ to $2 \mu \mathrm{m}$
(d) 5 to $11 \mu \mathrm{m}$

Qudsiya Anis

Numerade Educator

Problem 113

Cis and trans face of golgi body are and respectively.
(a) Convex, Concave
(b) Concave, Convex
(c) Convex, Convex
(d) Concave, Concave

Qudsiya Anis

Numerade Educator

Problem 114

Which face of golgi apparatus receives the materials packaged in the form of vesicles from the ER?
(a) Cis
(b) Trans
(c) Both (a) and (b) $\quad$ (d) None of these

Qudsiya Anis

Numerade Educator

Problem 115

Golgi apparatus is an important site for the formation of
(a) Protein and lipids
(b) Glycoproteins and glycolipids
(c) Carbohydrates and proteins
(d) Glucose and lipids

Qudsiya Anis

Numerade Educator

Problem 116

Which structure is formed by the process of packaging in golgi apparatus?
(a) Ribosomes
(b) Protein granules
(c) Lysosomes
(d) Centrosomes

Qudsiya Anis

Numerade Educator

Problem 117

Which of the following are not hydrolytic enzyme?
(a) Lipase
(b) Proteases
(c) Carbohydrases
(d) Ligases

Qudsiya Anis

Numerade Educator

Problem 118

Hydrolytic enzymes are activated at $\mathrm{pH}$.
(a) Acidic
(b) Neutral
(c) 0 basic
(d) All of these

Qudsiya Anis

Numerade Educator

Problem 119

Which of the following cannot be digested by hydrolytic enzymes?
(a) DNA
(b) Immunoglobulins
(c) Glucose
(d) Insulin

Qudsiya Anis

Numerade Educator

Problem 120

Which of the following are not the contents of vacuole?
(a) Water
(b) Enzymes
(c) Sap
(d) Excretory products

Qudsiya Anis

Numerade Educator

Problem 121

Which of the following is correct about vacoule?
(a) Vacuole contain water sap, excretory product and other material not useful for the cell.
(b) In plant cell the vacuole can occupy up to 90 per cent of the volume of the cell.
(c) The vacuole is bounded by tonoplast.
(d) All of these

Qudsiya Anis

Numerade Educator

Problem 123

The contractile vacuole present in amoeba is useful for
(a) Ingestion
(b) Locomotion
(c) Both (a) and (b)
(d) Excretion

Qudsiya Anis

Numerade Educator

Problem 124

The amount or number of mitochondria in a cell depends on
(a) Anatomical structure of cell
(b) Size of the cell
(c) Colour and contour of the cell
(d) Physiological activity of cell

Qudsiya Anis

Numerade Educator

Problem 125

What is the main function of cristae?
(a) To hold the vesicles formed
(b) Increase the surface area
(c) Increase the density of organelle
(d) All of these

Qudsiya Anis

Numerade Educator

Problem 126

What kind of ribosome is seen in mitochondria?
(a) $80 \mathrm{~S}$
(b) $70 \mathrm{~S}$
(c) Both (a) and (b)
(d) None of these

Mithlesh Kumari

Mithlesh Kumari

Numerade Educator

Problem 126

How is a new mitochondria formed by the pre-existing ones?
(a) Mitosis
(b) Fission
(c) Conjugation
(d) Budding

Qudsiya Anis

Numerade Educator

Problem 127

How is a new mitochondria formed by the pre-existing ones?
(a) Mitosis
(b) Fission
(c) Conjugation
(d) Budding

Vishnu P

Numerade Educator

Problem 128

What does a chloroplast contain?
(a) Chlorophyll
(b) Carotenoid
(c) Both (a) and (b)
(d) Anthocyanin

Qudsiya Anis

Numerade Educator

Problem 129

Select the incorrect pair from the following:
(a) Leucoplast-Carotene
(b) Amyloplast-Starch
(c) Elaioplast-Oils
(d) Aleuroplasts-Proteins

Qudsiya Anis

Numerade Educator

Problem 130

In $30 \mathrm{~S}$ and 40 S ribosomes, 'S'stands for
(a) Sub-unit
(b) Svedberg's unit
(c) Single unit
(d) Size

Mithlesh Kumari

Mithlesh Kumari

Numerade Educator

Problem 131

\text { Identify A, B, C, D and E in the given figure. }(a) A-Matrix, B-Outer membrane, C-Crista, D-Inner membrane, E-Inner-membrane space
(b) A-Crista, B-Outer membrane, C-Inner-membrane space, D-Inner membrane, E-Matrix
(c) A-Matrix, B-Inner membrane, C-Inner-membrane space, D-Crista, E-Outer membrane
(d) A-Inner-membrane space, B-Outer membrane, C-Matrix, D-Crista, E-Inner membrane

Qudsiya Anis

Numerade Educator

Problem 132

What kind of ribosome is present in mitochondria?
(a) $70 \mathrm{~S}$
(b) $80 \mathrm{~S}$
(c) $40 \mathrm{~S}$
(d) $60 \mathrm{~S}$

Mithlesh Kumari

Mithlesh Kumari

Numerade Educator

Problem 133

Plastids are found in
(a) All plant cells
(b) All animal cells
(c) Euglenoids
(d) Both (a) and (c)

Qudsiya Anis

Numerade Educator

Problem 134

Based on the type of pigments, the plastid can be classified into how many types?
(a) 1
(b) 2
(c) 3
(d) 4

Qudsiya Anis

Numerade Educator

Problem 135

Which of the following is a type of plastid?
(a) Chloroplast
(b) Chromoplast
(d) Leucoplast
(d) All of these

Qudsiya Anis

Numerade Educator

Problem 136

Select the correct matching:
Column I Column II (Type of leucoplast) (Stored food)
A. Amyloplast
1. Oil and fat
B. Elaioplast
2. Protein
C. Aleuroplasts
3. Carbohydrate
(a) $\mathrm{A}-3, \mathrm{~B}-1, \mathrm{C}-2$
(b) $\mathrm{A}-1, \mathrm{~B}-2, \mathrm{C}-3$
(c) A-3, B-2, C-1
(d) $\mathrm{A}-2, \mathrm{~B}-3, \mathrm{C}-1$

Qudsiya Anis

Numerade Educator

Problem 137

Select the incorrect statement:
(a) The chloroplast contains chlorophyll and carotenoid pigments.
(b) Chromoplast contains water soluble carotenoid pigments like carotene, xanthophylls.
(c) Plastid is easily observed under microscope.
(d) Chloroplast is a double membrane bound organelle.

Qudsiya Anis

Numerade Educator

Problem 138

The number of chloroplast in alga chlamydomonas is
(a) 2
(b) 1
(c) 20 to 40
(d) 5 to 10

Qudsiya Anis

Numerade Educator

Problem 139

\text { Identify } \mathrm{A} \text { to } \mathrm{F} \text { in the given figure. }(a) A-Outer membrane, B-Thylakoid, C-Stroma lamella, D-Inner membrane, E-Granum, F-Stroma
(b) A-Thylakoid, B-Outer membrane, C-Stroma lamella, D-Inner membrane, E-Stroma, F-Granum
(c) A-Stroma, B-Granum, C-Outer membrane, D-Stroma lamella, E-Inner membrane, F-Thylakoid
(d) A-Inner membrane, B-Thylakoid, C-Stroma lamella, D-Outer membrane, E-Stroma, F-Granum

Qudsiya Anis

Numerade Educator

Problem 140

Number of chloroplast present in a mesophyll cell
(a) 5-10
(b) $10-15$
(c) $20-40$
(d) $>100$

Qudsiya Anis

Numerade Educator

Problem 141

Chlorophyll pigments are present in
(a) Thylakoid
(b) Stroma
(c) Outer membrane
(d) Inner membrane

Qudsiya Anis

Numerade Educator

Problem 142

Ribosomes are the granular structure first observed under the electron microscope as dense particle by which scientist
(a) Robert Brown (1831)
(b) George Palade (1953)
(c) Camillo Golgi (1898)
(d) Singer and Nicolson (1972)

Qudsiya Anis

Numerade Educator

Problem 143

The types of ribosome present in eukaryote cell is
(a) $70 \mathrm{~S}$
(b) $80 \mathrm{~S}$
(c) Both (a) and (b)
(d) None of these

Mithlesh Kumari

Mithlesh Kumari

Numerade Educator

Problem 144

An elaborate network of filamentous proteinaceous structures present in the cytoplasm is collectively known as
(a) Cilia
(b) Flagella
(c) Cytoskeleton
(d) ER

Qudsiya Anis

Numerade Educator

Problem 145

Cytoskeleton helps in
(a) Mechanical support to cell
(b) Providing mobility to cell
(c) Maintenance of shape of cell
(d) All of these

Qudsiya Anis

Numerade Educator

Problem 146

The central part of the proximal region of the centriole is also proteinaceous and is called
(a) Spokes
(b) Doublet
(c) Hub
(d) Linkers

Qudsiya Anis

Numerade Educator

Problem 147

Find out the incorrect statement:
(a) Centrioles forms basal bodies of cilia or flagella.
(b) Centriole gives rise to spindle fibres at the time of cell division in animal cell.
(c) Centrosome is an organelle usually containing two cylindrical structures called centrioles.
(d) Peripheral fibril of centriole is doublet.

Qudsiya Anis

Numerade Educator

Problem 148

\text { Identify } \mathrm{A}, \mathrm{B}, \mathrm{C}, \mathrm{D}, \mathrm{E} \text { and } \mathrm{F} \text { given in the figure. }(a) A-Interdoublet bridge, B-Peripheral microtubules (doublets), C-Central microtubule, DPlasma membrane, E-Central bridge, F-Radial spoke
(b) A-Central sheath, B-Radial spoke, C-Interdoublet bridge, D-Central microtubule, EPlasma membrane, F-Peripheral microtubules (doublets)
(c) A-Central sheath, B-Plasma membrane, C-Peripheral microtubules (doublets), D-Radial spoke, E-Central microtubule, F-Interdoublet bridge
(d) A-Plasma membrane, B-Radial spoke, C-Peripheral microtubules (doublets), D-Central sheath, E-Central microtubule, F-Interdoublet bridge

Qudsiya Anis

Numerade Educator

Problem 149

(a) A-Interdoublet bridge, B-Peripheral microtubules (doublets), C-Central microtubule, DPlasma membrane, E-Central bridge, F-Radial spoke
(b) A-Central sheath, B-Radial spoke, C-Interdoublet bridge, D-Central microtubule, EPlasma membrane, F-Peripheral microtubules (doublets)
(c) A-Central sheath, B-Plasma membrane, C-Peripheral microtubules (doublets), D-Radial spoke, E-Central microtubule, F-Interdoublet bridge
(d) A-Plasma membrane, B-Radial spoke, C-Peripheral microtubules (doublets), D-Central sheath, E-Central microtubule, F-Interdoublet bridge

Parvati Devi

Numerade Educator

Problem 150

Which of the following is true about the internal structure of axoneme?
(a) Central sheath is connected to one of the tubule of each peripheral doublets by a radial spoke.
(b) Axoneme is not covered by plasma membrane at all.
(c) Then are only and radial spokes are found.
(d) Perinheraldo

Parvati Devi

Numerade Educator

Problem 151

Both cilium and flagellum emerges from centriole like structure which is called
(a) Basal granules
(b) Basal bodies
(c) Basal lamina
(d) Basal ganglion

Parvati Devi

Numerade Educator

Problem 152

The name 'chromatin' was given by
(a) Robert Brown
(b) Fleming
(c) Schwann
(d) Ramchandran

Qudsiya Anis

Numerade Educator

Problem 153

The outer membrane of nucleus remains continuous with which cell organelle
(a) ER
(b) Golgi body
(c) Lysosome
(d) All of these

Qudsiya Anis

Numerade Educator

Problem 154

The perinuclear space is about
(a) 1-5 nm
(b) $5-10 \mathrm{~nm}$
(c) $10-50 \mathrm{~nm}$
(d) $>100 \mathrm{~nm}$

Qudsiya Anis

Numerade Educator

Problem 155

The following cells are without nucleus
(a) Erythrocytes of many mammals
(b) Sieve tube cells of vascular plant
(c) Bacterial cell
(d) All of these

Qudsiya Anis

Numerade Educator

Problem 156

The site of active ribosomal RNA synthesis is
(a) Nucleolus
(b) Mitochondria
(c) Cytoplasm
(d) All of these

Qudsiya Anis

Numerade Educator

Problem 157

Chromatin contains
(a) DNA
(b) Basic protein histone
(c) Some non-histone protein and RNA
(d) All of these

Aflah M

Numerade Educator

Problem 157

Chromatin contains
(a) DNA
(b) Basic protein histone
(c) Some non-histone protein and RNA
(d) All of these

Aflah M

Numerade Educator

Problem 158

How long a DNA is distributed in our forty six chromosomes?
(a) 1 metre
(b) 3 metre
(c) 2 metre
(d) 4 metre

Qudsiya Anis

Numerade Educator

Problem 159

Based on the position of centromere, the chromosomes are classified into how many types?
(a) 1
(b) 3
(c) 2
(d) 4

Qudsiya Anis

Numerade Educator

Problem 160

\text { Identify A, B, C and D given in the figure. }(a) A-Nucleoplasm, B-Nucleolus, C-Nuclear pore, D-Nuclear membrane
(b) A-Nucleolus, B-Nucleoplasm, C-Nuclear membrane, D-Nuclear pore
(c) A-Nuclear pore, B-Nuclear membrane, C-Nucleoplasm, D-Nucleolus
(d) A-Nuclear membrane, B-Nucleoplasm, C-Nuclear pore, D-Nuclear membrane

Qudsiya Anis

Numerade Educator

Problem 161

Match the column:
Column I Column II
A. Metacentric chromosomal
1. Middle centromere
B. Sub-metacentric
2. Centromere slightly way from middle
C. Acrocentric
3. Centromere close to its end
D. Telocentric
4. Terminal centromere
(a) $\mathrm{A}-1, \mathrm{~B}-2, \mathrm{C}-3, \mathrm{D}-4$
(b) $\mathrm{A}-2, \mathrm{~B}-1, \mathrm{C}-3, \mathrm{D}-4$
(c) A-1, B-2, C-4, D-3
(d) $\mathrm{A}-4, \mathrm{~B}-3, \mathrm{C}-2, \mathrm{D}-1$

Qudsiya Anis

Numerade Educator

Problem 162

\text { The following diagram shows a chromosome. Label A represents: }(a) Chromosomes
(b) Kinetichore
(c) Centromere
(d) Acrocentric

Qudsiya Anis

Numerade Educator

Problem 163

Select the incorrect statement:
(a) Micro bodies contain various enzyme and are present in both plant and animal cells.
(b) Few chromosomes have non-staining secondary constriction of constant location. This give the appearance of a small fragment called the satellite.
(c) Nuclei are spherical structures present in nucleoplasm and it is a site for ribosomal RNA synthesis.
(d) Every chromosome essentially has a secondary constriction or the centromere on the sides of which disc shaped structures called kinetochores are present.

Qudsiya Anis

Numerade Educator

Problem 164

\text { Identify } \mathrm{A}, \mathrm{B}, \mathrm{C}, \mathrm{D}, \mathrm{E}, \mathrm{F} \text { and G given in the figure. }(a) A-Satellite, B-Secondary constriction, C-Centromere, D-Long arm, E-Short arm
(b) A-Secondary constriction, B-Satellite, C-Long arm, D-Centromere, E-Short arm
(c) A-Centromere, B-Satellite, C-Long arm, D-Short arm, E-Secondary constriction
(d) A-Satellite, B-Short arm, C-Long arm, D-Centromere, E-Secondary constriction

Qudsiya Anis

Numerade Educator

Problem 165

Assertion: Bacterial cells may be motile or non motile. Reason: Bacterial cells may or may not posses cilia.

Qudsiya Anis

Numerade Educator

Problem 166

Assertion: Bacterial cell walls are not like the plant cell. Reason: Bacterial cell wall is not made up of cellulose.

Qudsiya Anis

Numerade Educator

Problem 167

Assertion: Membrane transport occurs through the carrier proteins. Reason: The transport carried by carrier proteins is always passive.

Qudsiya Anis

Numerade Educator

Problem 168

Assertion: Cristae are the infoldings of outer membrane of mitochondria. Reason: Electron transport occurs in mitochondrial stroma.

Qudsiya Anis

Numerade Educator

Problem 169

Assertion: Eukaryotic cells have more DNA than prokaryotic cells. Reason: Eukaryotes are genetically more complex than prokaryotes.

Qudsiya Anis

Numerade Educator

Problem 170

Assertion: Schleiden and Schwann were the first to observe the cells and to put forward the cell theory. Reason: The cells are always living unit.

Qudsiya Anis

Numerade Educator

Problem 171

Assertion: In animal cells, the lipid-like steroidal hormones are synthesized in SER. Reason: The smooth ER is the major site for synthesis of lipid.

Qudsiya Anis

Numerade Educator

Problem 172

Assertion: Lysosomes help in photorespiration. Reason: Lysosome have basic enzyme.

Qudsiya Anis

Numerade Educator

Problem 173

Assertion: Mitochondria is known as the power house of cell. Reason: ATP production takes place here.

Qudsiya Anis

Numerade Educator

Problem 173

Assertion: Mitochondria is known as the power house of cell. Reason: ATP production takes place here.

Qudsiya Anis

Numerade Educator

Problem 174

Assertion: DNA is associated with proteins. Reason: DNA binds around histone protein that form a pool and the entire structure is called a nucleosome.

Qudsiya Anis

Numerade Educator

Problem 175

Assertion: Cell wall is not found in animal cell. Reason: Animal cells are covered by cell membrane.

Qudsiya Anis

Numerade Educator

Problem 176

Assertion: It is important that the organisms should have cell. Reason: A cell keeps its chemical composition steady within its boundary.

Qudsiya Anis

Numerade Educator

Problem 177

Assertion: The number of cells in a multicellular organism is inversely proportional to the size of body. Reason: All the cells in the biological world are of same size.

Qudsiya Anis

Numerade Educator

Problem 178

Assertion: A cell membrane shows fluid behaviour. Reason: A membrane is a mosaic or composite of diverse lipids and proteins.

Qudsiya Anis

Numerade Educator

Problem 179

Assertion: Mitochondria and chloroplasts are semi-autonomous organelles. Reason: Mitocondria and chloroplast are devoid of ribosomes.

Qudsiya Anis

Numerade Educator

Problem 180

Assertion: Cell is fundamental structural and functional unit of life. Reason: Anything less than a complete structure of a cell does not ensure independent life.

Qudsiya Anis

Numerade Educator

Problem 181

Assertion: $\mathrm{Na}^{+} / \mathrm{K}^{+}$ pump is an active transport. Reason: $\mathrm{Na}^{+} / \mathrm{K}^{+}$ pump utilize energy of ATP

Qudsiya Anis

Numerade Educator

Problem 182

Assertion: Calcium pectate is referred as plant cement. Reason: It glues neighbouring plant cells together.

Qudsiya Anis

Numerade Educator

Problem 183

Assertion: Cell wall help in cell to cell interaction. Reason: Cell wall provide barrier to undesirable macromolecules.

Qudsiya Anis

Numerade Educator

Problem 184

Assertion: Lateral movement of protein lipid bilayer of plasma membrane is possible Reason: Lipid bilayer is of quasi fluid nature.

Qudsiya Anis

Numerade Educator

Problem 185

Assertion: Lysosomes posses' acidic pH. Reason: Lysosomes are rich in hydrolytic enzymes which are activated by acidic $\mathrm{pH}$.

Qudsiya Anis

Numerade Educator

Problem 186

Assertion: Mitochondria are the sites of aerobic respiration Reason: Mitochondria contain 80 s type of ribosomes.

Qudsiya Anis

Numerade Educator

Problem 187

Assertion: Carbohydrate synthesis occurs in stroma of chloroplast. Reason: Enzyme required for carbohydrate synthesis present in stroma of chloroplast.

Qudsiya Anis

Numerade Educator

Problem 188

Assertion: Prokaryotic and Eukaryotic flagella are structurally similar. Reason: Cilia are longer than flagella.

Qudsiya Anis

Numerade Educator

Problem 189

Assertion: 's' in ' 80 s' represent sedimentation coefficient Reason: Sedimentation coefficient is direct measure of density and size of ribosome.

Qudsiya Anis

Numerade Educator

Problem 190

Assertion: Lysosomes have acidic $\mathrm{pH}$. Reason: It is maintain by pumping proton into interior of lysosome.

Qudsiya Anis

Numerade Educator

Problem 191

Assertion: Mitochondria and chloroplast are semi-autonomous cell organelle. Reason: Both contain DNA, RNA and ribosome.

Qudsiya Anis

Numerade Educator

Problem 192

Assertion: Onicellular organisms are capable of independent existence. Reason: Single cell in these organisms can perform essential function of life.

Qudsiya Anis

Numerade Educator

Problem 193

Assertion: Cell is fundamental structural and functional unit of all living organisms. Reason: A complete structure of cell does not ensure independent life.

Qudsiya Anis

Numerade Educator

Problem 194

Assertion: Cell wall is unique character of the plant cells Reason: Cell membrane is only found in animal cells.

Qudsiya Anis

Numerade Educator

Problem 195

Assertion: Cells have different shapes Reason: Shapes of cells vary with function they perform

Qudsiya Anis

Numerade Educator

Problem 196

Assertion: Genetic material in prokaryotic is said to be naked. Reason: Genetic material in prokaryotic is not associated with histone proteins and absence of nuclear envelope around it.

Qudsiya Anis

Numerade Educator

Problem 197

Assertion: Certain bacteria possess resistance to antibiotic. Reason: Certain bacteria possess plasmid

Qudsiya Anis

Numerade Educator

Problem 198

Assertion: Mesosome in bacteria help in respiration Reason: Mesosome contain respiratory enzyme

Qudsiya Anis

Numerade Educator

Problem 199

Assertion: Polysomes are found in prokaryote as well as eukaryotes Reason: Polysomes use to produce more protein replica from single mRNA.

Qudsiya Anis

Numerade Educator

Problem 200

Assertion: Ribosomes are found in both prokaryote and eukaryotes. Reason: Ribosomes are protein factories which is required for both types of cells.

Qudsiya Anis

Numerade Educator

Problem 201

Assertion: In lipid bilayer in membrane, lipid are arranged with polar head towards outer side and the hydrophobic tail towards the inner part Reason: This ensures that the nonpolar tail of saturated hydrocarbon is protected from aqueous environment.

Qudsiya Anis

Numerade Educator

Problem 202

Assertion: Integral proteins can't be extracted easily from plasma membrane Reason: Integral proteins are partially or totally embedded in the membrane.

Qudsiya Anis

Numerade Educator

Problem 203

Assertion: RER is rough. Reason: This endoplasmic reticulum bears ribosomes.

Qudsiya Anis

Numerade Educator

Problem 204

Assertion: Golgi apparatus remain in close association with the endoplasmic reticulum. Reason: Material to be packaged in form of vesicle from the ER fuse with the cis face of the Golgi apparatus and move towards maturing face.

Qudsiya Anis

Numerade Educator

Problem 205

Assertion: Lysosomes are capable of digesting carbohydrate, protein, lipids and nucleic acids. Reason: Lysosomes contain almost all type of hydrolytic enzymes.

Qudsiya Anis

Numerade Educator

Problem 205

Assertion: Lysosomes are capable of digesting carbohydrate, protein, lipids and nucleic acids. Reason: Lysosomes contain almost all type of hydrolytic enzymes.

Qudsiya Anis

Numerade Educator

Problem 206

Assertion: Some ion concentration is higher in the vacuole than in the cytoplasm of plant cell. Reason: In the plant tonoplast facilitate the transport of some ions against concentration gradient into the vacuole.

Qudsiya Anis

Numerade Educator

Problem 207

Assertion: Chloroplast can synthesize proteins Reason: Chloroplast contains ribosomes.

Qudsiya Anis

Numerade Educator

Problem 208

Assertion: Ribosomes were discovered after discovery of electron microscope. Reason: Ribosomes can be observed by electron-microscope.

Qudsiya Anis

Numerade Educator