Campbell Biology Chapter 11 Test Bank
1. 1) In yeast signal transduction, a yeast cell releases C) binds to receptors
a mating factor, which ________. on the membranes of
other types of yeast
cells
C) They will mate
2. 2) Yeast cells of mating type a are genetically en-
gineered to produce only mating factor ±in stead of with each other or
the normal mating factor a. The gene for the mating with normal mating
factor receptor was unaltered. How will these engi-type a cells, but not
neered cells behave in terms of mating? with normal mating
type ±c ells.
3. 3) In the formation of biofilms, such as those form-B) aggregation of
ing on unbrushed teeth, cell signaling serves which bacteria that can
function? cause cavities
4. 4) Which of the following is a type of local signaling C) paracrine signal-
in which a cell secretes a signal molecule that af- ing
fects neighboring cells?
5. 5) Hormones are chemical substances produced in D) The target or-
one organ that are released into the bloodstream gan must have re-
and affect the function of a target organ. Which of ceptors that recog-
the following conditions is required for the target nize and bind the
organ to respond to a particular hormone? hormone molecule.
6. 6) In which of the following ways do plant hormones A) Plant hor-
differ from hormones in animals? mones frequently
travel through the air
as a gas.
C) signal molecule
7. 7) When a neuron responds to a particular neuro-
transmitter by opening gated ion channels, the neu-
rotransmitter is serving as which part of the signal
pathway?
8. 8) Use the following figure to answer the question. D) synaptic
Which of the following types of signaling is repre-
sented in the figure?
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, Campbell Biology Chapter 11 Test Bank
9. 9) Use the following figure to answer the question. C) neurotransmitters
In the figure, the dots in the space between the two
structures represent which of the following?
10.10) Which observation suggested to Sutherland the B) Glycogen break-
involvement of a second messenger in epineph- down was observed
rine's effect on liver cells? only when epineph-
rine was adminis-
tered to intact cells.
11.11) Which of the following statements about a G B) A G protein bound
protein signaling pathway is true? to GTP is in its active
state.
12.12) What is the most likely mechanism by which B) It binds with a
testosterone functions inside a cell?
receptor protein that
enters the nucleus
and activates ex-
pression of specific
genes.
13.13) Scientists have found that extracellular matrix A) integrins
components may induce specific gene expression
in embryonic tissues such as the liver and testes.
For this to happen, there must be direct commu-
nication between the extracellular matrix and the
developing cells. Which kind of transmembrane pro-
tein would most likely be involved in this kind of
induction?
14.14) One of the major categories of receptors in D) receptor tyrosine
the plasma membrane functions by forming dimers, kinases
adding phosphate groups, and then activating relay
proteins. Which type does this?
15.15) Which of the following statements describes B) The transcrip-
a likely effect of a drug designed that inhibits the tion of certain genes
cellular response to testosterone? would decrease.
16.
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1. 1) In yeast signal transduction, a yeast cell releases C) binds to receptors
a mating factor, which ________. on the membranes of
other types of yeast
cells
C) They will mate
2. 2) Yeast cells of mating type a are genetically en-
gineered to produce only mating factor ±in stead of with each other or
the normal mating factor a. The gene for the mating with normal mating
factor receptor was unaltered. How will these engi-type a cells, but not
neered cells behave in terms of mating? with normal mating
type ±c ells.
3. 3) In the formation of biofilms, such as those form-B) aggregation of
ing on unbrushed teeth, cell signaling serves which bacteria that can
function? cause cavities
4. 4) Which of the following is a type of local signaling C) paracrine signal-
in which a cell secretes a signal molecule that af- ing
fects neighboring cells?
5. 5) Hormones are chemical substances produced in D) The target or-
one organ that are released into the bloodstream gan must have re-
and affect the function of a target organ. Which of ceptors that recog-
the following conditions is required for the target nize and bind the
organ to respond to a particular hormone? hormone molecule.
6. 6) In which of the following ways do plant hormones A) Plant hor-
differ from hormones in animals? mones frequently
travel through the air
as a gas.
C) signal molecule
7. 7) When a neuron responds to a particular neuro-
transmitter by opening gated ion channels, the neu-
rotransmitter is serving as which part of the signal
pathway?
8. 8) Use the following figure to answer the question. D) synaptic
Which of the following types of signaling is repre-
sented in the figure?
1/9
, Campbell Biology Chapter 11 Test Bank
9. 9) Use the following figure to answer the question. C) neurotransmitters
In the figure, the dots in the space between the two
structures represent which of the following?
10.10) Which observation suggested to Sutherland the B) Glycogen break-
involvement of a second messenger in epineph- down was observed
rine's effect on liver cells? only when epineph-
rine was adminis-
tered to intact cells.
11.11) Which of the following statements about a G B) A G protein bound
protein signaling pathway is true? to GTP is in its active
state.
12.12) What is the most likely mechanism by which B) It binds with a
testosterone functions inside a cell?
receptor protein that
enters the nucleus
and activates ex-
pression of specific
genes.
13.13) Scientists have found that extracellular matrix A) integrins
components may induce specific gene expression
in embryonic tissues such as the liver and testes.
For this to happen, there must be direct commu-
nication between the extracellular matrix and the
developing cells. Which kind of transmembrane pro-
tein would most likely be involved in this kind of
induction?
14.14) One of the major categories of receptors in D) receptor tyrosine
the plasma membrane functions by forming dimers, kinases
adding phosphate groups, and then activating relay
proteins. Which type does this?
15.15) Which of the following statements describes B) The transcrip-
a likely effect of a drug designed that inhibits the tion of certain genes
cellular response to testosterone? would decrease.
16.
2/9
