Human Biology

Sylvia S. Mader, Michael Windelspecht, Lynn Preston

Chapter 3 Cell Structure and Function - all with Video Answers

Educators

Chapter Questions

02:34

Problem 1

Complete the following questions.
Explain the three key concepts of the cell theory. (page 44 )

Rehana Riaz

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01:41

Problem 2

Complete the following questions.
Which type of microscope would you use to observe the swimming behavior of a flagellated protozoan? Explain. (page 45 )

Khalida Dawar

Numerade Educator

02:09

Problem 3

Complete the following questions.
Describe how the eukaryotic cell gained mitochondria and chloroplasts. (page 46 )

Khalida Dawar

Numerade Educator

02:57

Problem 4

Complete the following questions.
Invagination of plasma membrane produced what structures in eukaryotic cells not present in prokaryotic cells? (page 46 )

Khalida Dawar

Numerade Educator

03:06

Problem 5

Complete the following questions.
How does the organization of the plasma membrane relate to its function? (pages $50-52$ )

Khalida Dawar

Numerade Educator

06:21

Problem 6

Complete the following questions.
Describe four different ways materials can enter and or leave a cell. (pages $50-51$ )

Khalida Dawar

Numerade Educator

04:59

Complete the following questions.
For the following cell organelles, describe the structure and function of each: nucleus, nucleolus, ribosomes, endoplasmic reticulum (rough and smooth), Golgi apparatus, lysosomes, centrioles, and mitochondria. (pages $53-55$ )

Khalida Dawar

Numerade Educator

02:40

Problem 8

Complete the following questions.
What would happen to a eukaryotic cell without a cytoskeleton? (pages $55-56$ )

Khalida Dawar

Numerade Educator

04:35

Problem 9

Complete the following questions.
Describe an enzyme and coenzyme. Explain the mechanism of enzyme function, particularly the relationship of shape to its activity. (pages $57-58$ )

Khalida Dawar

Numerade Educator

02:26

Problem 10

Complete the following questions.
Which stage of cellular respiration produces the most ATP? Explain. (pages $57-59$ )

Khalida Dawar

Numerade Educator

01:32

Problem 11

Complete the following questions.
The small size of cells is best correlated with
a. the fact that they are self-reproducing.
b. an adequate surface area for exchange of materials.
c. their vast versatility.
d. All of these are correct.

Khalida Dawar

Numerade Educator

02:13

Problem 12

Complete the following questions.
A phospholipid has a head and two tails. The tails are found
a. at the surfaces of the membrane.
b. in the interior of the membrane.
c. spanning the membrane.
d. where the environment is hydrophobic.
e. Both b and d are correct.

Khalida Dawar

Numerade Educator

01:33

Problem 13

Complete the following questions.
Facilitated diffusion differs from diffusion in that facilitated
diffusion
a. involves the passive use of a carrier protein.
b. involves the active use of a carrier protein.
c. moves a molecule from a low to a high concentration.
d. involves the use of ATP molecules.

Khalida Dawar

Numerade Educator

02:20

Problem 14

Complete the following questions.
When a cell is placed in a hypotonic solution,
a. solute exits the cell to equalize the concentration on both sides of the membrane.
b. water exits the cell toward the area of lower solute
concentration.
c. water enters the cell toward the area of higher solute concentration.
d. solute exits and water enters the cell.

Khalida Dawar

Numerade Educator

01:01

Problem 15

Match each function to the proper organelle in the key.
a. mitochondrion
b. nucleus
c. Golgi apparatus
d. rough ER
Packaging and secretion

Tate Hilken

Numerade Educator

00:37

Problem 16

Match each function to the proper organelle in the key.
a. mitochondrion
b. nucleus
c. Golgi apparatus
d. rough ER
ATP production (powerhouse of cell)

Khalida Dawar

Numerade Educator

01:02

Problem 17

Match each function to the proper organelle in the key.
a. mitochondrion
b. nucleus
c. Golgi apparatus
d. rough ER
Control center for the cell

Tate Hilken

Numerade Educator

01:02

Problem 18

Match each function to the proper organelle in the key.
a. mitochondrion
b. nucleus
c. Golgi apparatus
d. rough ER
Control center for the cell

Tate Hilken

Numerade Educator

00:36

Problem 19

Vesicles carrying proteins for secretion move from the ER to the
a. smooth ER.
b. lysosomes.
c. Golgi apparatus.
d. nucleolus.

Tate Hilken

Numerade Educator

01:26

Problem 20

The active site of an enzyme
a. is identical to that of any other enzyme.
b. is the part of the enzyme where the substrate can fit.
c. can be used over and over.
d. is where the coenzyme binds.
e. Both b and c are correct.

Tate Hilken

Numerade Educator

01:35

Problem 21

The oxygen required by cellular respiration becomes part of which molecule?
a. ATP
b. $\mathrm{H}_{2} \mathrm{O}$
c. pyruvate
d. $\mathrm{CO}_{2}$

Tate Hilken

Numerade Educator

02:16

Problem 22

Fermentation results in a buildup of
a. NADH.
b. ATP.
c. lactic acid.
d. $\mathrm{NAD}^{+}$
e. carbon dioxide.

Khalida Dawar

Numerade Educator

02:38

Problem 23

Use these terms to label the following diagram of the plasma membrane: carbohydrate chain, filaments of the cytoskeleton, hydrophilic heads, hydrophobic tails, protein (used twice), phospholipid bilayer.

Khalida Dawar

Numerade Educator

01:15

Problem 24

Use these terms to label the following diagram: substrates, enzyme (used twice), active site, product, and enzymesubstrate complex.

Khalida Dawar

Numerade Educator

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