Question

QUESTION 24 When the substrate is bound to the enzyme, the shape of the enzyme may change slightly, leading to A. more possible products of the reaction. B. an induced fit. C. a greater supply of activation energy. D. this nucleic acid is ATP. QUESTION 25 The organic nonprotein components that assist in enzyme functioning are called A. substrates. B. cofactors. C. coenzymes. D. reactants. QUESTION 26 When an atom or molecule gains one or more electrons, it is said to be: A. oxidized. B. reduced. C. polarized. D. energized. QUESTION 27 The signal recognition particle (SRP) functions in recognizing an ER signal sequence and binding to an SRP receptor in the ER. True False QUESTION 28 The fluid-filled interior of the chloroplast is called the _______. A. matrix B. grana C. thylakoid D. stroma QUESTION 29 Which of the following plastids does NOT contain stored food material? A. chromoplasts B. leucoplasts C. All of them store food material. D. amyloplasts QUESTION 30 The amount of energy available to do work is called A. potential energy. B. activation energy. C. free energy. D. kinetic energy. QUESTION 31 Cells that produce a lot of lipids for membranes would have an enlarged A. rough ER. B. Golgi apparatus. C. mitochondrion. D. smooth ER. QUESTION 32 Which of the following process requires membrane proteins? A. Exocytosis B. Pinocytosis C. Phagocytosis D. Receptor-mediated endocytosis QUESTION 33 DNA, cytoplasm, cell membrane, and ribosomes are features shared by all cells. True False QUESTION 34 Which of these mainly serve as receptors or cell recognition molecules on cell surfaces? A. transmembrane proteins B. glycoproteins C. integral proteins D. peripheral proteins

          QUESTION 24
When the substrate is bound to the enzyme, the shape of the
enzyme may change slightly, leading to
A.
more possible products of the reaction.
B.
an induced fit.
C.
a greater supply of activation energy.
D.
this nucleic acid is ATP.

QUESTION 25
The organic nonprotein components that assist in enzyme
functioning are called
A.
substrates.
B.
cofactors.
C.
coenzymes.
D.
reactants.

QUESTION 26
When an atom or molecule gains one or more electrons, it is said
to be:
A.
oxidized.
B.
reduced.
C.
polarized.
D.
energized.

QUESTION 27
The signal recognition particle (SRP) functions in recognizing
an ER signal sequence and binding to an SRP receptor in the ER.
 True
 False

QUESTION 28
The fluid-filled interior of the chloroplast is called the
_______.
A.
matrix
B.
grana
C.
thylakoid
D.
stroma

QUESTION 29
Which of the following plastids does NOT contain stored food
material?
A.
chromoplasts
B.
leucoplasts
C.
All of them store food material.
D.
amyloplasts

QUESTION 30
The amount of energy available to do work is called
A.
potential energy.
B.
activation energy.
C.
free energy.
D.
kinetic energy.

QUESTION 31
Cells that produce a lot of lipids for membranes would have an
enlarged
A.
rough ER.
B.
Golgi apparatus.
C.
mitochondrion.
D.
smooth ER.

QUESTION 32
Which of the following process requires membrane proteins?
A.
Exocytosis
B.
Pinocytosis
C.
Phagocytosis
D.
Receptor-mediated endocytosis

QUESTION 33
DNA, cytoplasm, cell membrane, and ribosomes are features shared
by all cells.
 True
 False

QUESTION 34
Which of these mainly serve as receptors or cell recognition
molecules on cell surfaces?
A.
transmembrane proteins
B.
glycoproteins
C.
integral proteins
D.
peripheral proteins

Added by David J.

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