1|Page
FRQ AP BIO UNIT 4 PROGRESS CHECK NEWEST
ACTUAL EXAM ||VERIFIED EXAM!!|| MOST RECENT
EXAM ACTUAL COMPLETE REAL EXAM QUESTIONS
AND CORRECT ANSWERS (VERIFIED ANSWERS)
ALREADY GRADED A+ | GUARANTEED SUCCESS!!
NEWEST EXAM!!!
A particular cell signaling pathway requires a hormone that
is released into the bloodstream and travels to
target cells. Scientists learned that not all cells respond to
the hormone.
Which of the following best explains why some cells do not
respond to the hormone?
A
Some cells lack hormone receptors.
B
Some cells lack regulators.
C
Some cells lack cholesterol.
D
Some cells lack embedded proteins. - Answer-A
Some cells lack hormone receptors.
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G proteins are a family of receptor proteins that are
involved in transmitting signals from outside a cell
to inside a cell. When a signaling molecule binds to a G
protein, the G protein is activated. The G protein
then activates an enzyme that produces a second
messenger called cAMP.
Which of the following describes a critical role of cAMP
during the transduction stage of a G protein
signal transduction pathway?
A
cAMP carries the signal to the nucleus of the cell and
results in new sequences of nucleotides being added to
the cell's DNA.
B
cAMP binds the extracellular signal molecule and carries it
to the intracellular target specified by the signal.
C
cAMP modifies a specific monomer so that it can be added
to an elongating structural macromolecule.
D
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cAMP results in the activation of an enzyme that amplifies
the signal by acting on many substrate molecules. -
Answer-D
cAMP results in the activation of an enzyme that amplifies
the signal by acting on many substrate molecules.
Which of the following best describes a molecule that
relays messages from receptors to other molecules only
inside the cell?
A
The molecule is a ligand.
B
The molecule is a hormone.
C
The molecule is a secondary messenger.
D
The molecule is a transport protein. - Answer-C
The molecule is a secondary messenger.
Which of the following best explains how a group of cells
can send chemical signals to cells in another part of the
body?
, 4|Page
A
The chemical is released into the extracellular space and
immediately binds to
specific receptors on the surface of the target cells that
released it.
B
The chemical diffuses through the extracellular space until
it reaches target cells
with specific receptors for that chemical.
C
The chemical is released into blood vessels, where it
circulates until it reaches
target cells that have specific receptors for that chemical.
D
The chemical is sent from the group of cells through
neurons to the target cells,
where it binds to specific receptors. - Answer-C
The chemical is released into blood vessels, where it
circulates until it reaches
target cells that have specific receptors for that chemical.
FRQ AP BIO UNIT 4 PROGRESS CHECK NEWEST
ACTUAL EXAM ||VERIFIED EXAM!!|| MOST RECENT
EXAM ACTUAL COMPLETE REAL EXAM QUESTIONS
AND CORRECT ANSWERS (VERIFIED ANSWERS)
ALREADY GRADED A+ | GUARANTEED SUCCESS!!
NEWEST EXAM!!!
A particular cell signaling pathway requires a hormone that
is released into the bloodstream and travels to
target cells. Scientists learned that not all cells respond to
the hormone.
Which of the following best explains why some cells do not
respond to the hormone?
A
Some cells lack hormone receptors.
B
Some cells lack regulators.
C
Some cells lack cholesterol.
D
Some cells lack embedded proteins. - Answer-A
Some cells lack hormone receptors.
,2|Page
G proteins are a family of receptor proteins that are
involved in transmitting signals from outside a cell
to inside a cell. When a signaling molecule binds to a G
protein, the G protein is activated. The G protein
then activates an enzyme that produces a second
messenger called cAMP.
Which of the following describes a critical role of cAMP
during the transduction stage of a G protein
signal transduction pathway?
A
cAMP carries the signal to the nucleus of the cell and
results in new sequences of nucleotides being added to
the cell's DNA.
B
cAMP binds the extracellular signal molecule and carries it
to the intracellular target specified by the signal.
C
cAMP modifies a specific monomer so that it can be added
to an elongating structural macromolecule.
D
,3|Page
cAMP results in the activation of an enzyme that amplifies
the signal by acting on many substrate molecules. -
Answer-D
cAMP results in the activation of an enzyme that amplifies
the signal by acting on many substrate molecules.
Which of the following best describes a molecule that
relays messages from receptors to other molecules only
inside the cell?
A
The molecule is a ligand.
B
The molecule is a hormone.
C
The molecule is a secondary messenger.
D
The molecule is a transport protein. - Answer-C
The molecule is a secondary messenger.
Which of the following best explains how a group of cells
can send chemical signals to cells in another part of the
body?
, 4|Page
A
The chemical is released into the extracellular space and
immediately binds to
specific receptors on the surface of the target cells that
released it.
B
The chemical diffuses through the extracellular space until
it reaches target cells
with specific receptors for that chemical.
C
The chemical is released into blood vessels, where it
circulates until it reaches
target cells that have specific receptors for that chemical.
D
The chemical is sent from the group of cells through
neurons to the target cells,
where it binds to specific receptors. - Answer-C
The chemical is released into blood vessels, where it
circulates until it reaches
target cells that have specific receptors for that chemical.
