Biology 1201 Exam 2 questions with |\ |\ |\ |\ |\ |\
correct answers |\
What is another name for cell to cell communication?
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a. signal transition
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b. signal transduction
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c. signal translation
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d. signal transference
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e. all of the above - CORRECT ANSWERS ✔✔b. signal
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transduction
Paracrine signaling is when:
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a. signal molecules pass through gap junctions to
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neighboring cells |\
b. signal molecules pass through the bloodstream to
|\ |\ |\ |\ |\ |\ |\ |\
other cells |\
c. signal molecules cause two separate cells to fuse
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d. signal molecules pass from one cell to a nearby cell
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e. all of the above - CORRECT ANSWERS ✔✔d. signal
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molecules pass from one cell to a nearby cell
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,If something is "hormonal" or "endocrine" signalling, this
|\ |\ |\ |\ |\ |\ |\ |\
means:
a. the signalling molecule is hydrophobic
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b. the signalling molecule binds to a cell surface receptor
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c. the signalling molecule passes through the
|\ |\ |\ |\ |\ |\ |\
bloodstream
d. the signalling molecule is a small organic molecule
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e. the signalling molecule is a protein or peptide -
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CORRECT ANSWERS ✔✔c. the signalling molecule passes
|\ |\ |\ |\ |\ |\ |\
through the bloodstream |\ |\
In most signal transduction pathways, what actually
|\ |\ |\ |\ |\ |\ |\
passes through the membrane?
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a. cyclic AMP
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b. GTP|\
c. small peptides
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d. transcription factors
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e. nothing but information - CORRECT ANSWERS ✔✔e.
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nothing but information |\ |\
What are GPCRs ?
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a. G-protein coupled receptors
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b. transmembrane proteins
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c. cell surface receptors
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, d. common drug binding targets
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e. all of the above - CORRECT ANSWERS ✔✔e. all of the
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
above
The goal of most signal transduction pathways is:
|\ |\ |\ |\ |\ |\ |\
a. to stimulate a hormone
|\ |\ |\ |\
b. to increase metabolism
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c. to form tissues
|\ |\ |\
d. to turn a gene on or off
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e. to stimulate the immune system - CORRECT ANSWERS
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✔✔d. to turn a gene on or off
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What is the first thing an RTK (receptor tyrosine kinase)
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
does after binding a signaling molecule?
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a. flip from one side of the membrane to the other
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b. bind to a G-protein
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c. form a dimer in the membrane
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d. turn on a gene
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e. release ATP - CORRECT ANSWERS ✔✔c. form a dimer in
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
the membrane
|\ |\
Some signaling molecules do not need to bind to a cell
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
surface receptor, they bind an internal protein and go all
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
correct answers |\
What is another name for cell to cell communication?
|\ |\ |\ |\ |\ |\ |\ |\
a. signal transition
|\ |\
b. signal transduction
|\ |\
c. signal translation
|\ |\
d. signal transference
|\ |\
e. all of the above - CORRECT ANSWERS ✔✔b. signal
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
transduction
Paracrine signaling is when:
|\ |\ |\
a. signal molecules pass through gap junctions to
|\ |\ |\ |\ |\ |\ |\ |\
neighboring cells |\
b. signal molecules pass through the bloodstream to
|\ |\ |\ |\ |\ |\ |\ |\
other cells |\
c. signal molecules cause two separate cells to fuse
|\ |\ |\ |\ |\ |\ |\ |\
d. signal molecules pass from one cell to a nearby cell
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
e. all of the above - CORRECT ANSWERS ✔✔d. signal
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
molecules pass from one cell to a nearby cell
|\ |\ |\ |\ |\ |\ |\ |\
,If something is "hormonal" or "endocrine" signalling, this
|\ |\ |\ |\ |\ |\ |\ |\
means:
a. the signalling molecule is hydrophobic
|\ |\ |\ |\ |\
b. the signalling molecule binds to a cell surface receptor
|\ |\ |\ |\ |\ |\ |\ |\ |\
c. the signalling molecule passes through the
|\ |\ |\ |\ |\ |\ |\
bloodstream
d. the signalling molecule is a small organic molecule
|\ |\ |\ |\ |\ |\ |\ |\
e. the signalling molecule is a protein or peptide -
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
CORRECT ANSWERS ✔✔c. the signalling molecule passes
|\ |\ |\ |\ |\ |\ |\
through the bloodstream |\ |\
In most signal transduction pathways, what actually
|\ |\ |\ |\ |\ |\ |\
passes through the membrane?
|\ |\ |\
a. cyclic AMP
|\ |\
b. GTP|\
c. small peptides
|\ |\
d. transcription factors
|\ |\
e. nothing but information - CORRECT ANSWERS ✔✔e.
|\ |\ |\ |\ |\ |\ |\ |\
nothing but information |\ |\
What are GPCRs ?
|\ |\ |\
a. G-protein coupled receptors
|\ |\ |\
b. transmembrane proteins
|\ |\
c. cell surface receptors
|\ |\ |\
, d. common drug binding targets
|\ |\ |\ |\
e. all of the above - CORRECT ANSWERS ✔✔e. all of the
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
above
The goal of most signal transduction pathways is:
|\ |\ |\ |\ |\ |\ |\
a. to stimulate a hormone
|\ |\ |\ |\
b. to increase metabolism
|\ |\ |\
c. to form tissues
|\ |\ |\
d. to turn a gene on or off
|\ |\ |\ |\ |\ |\ |\
e. to stimulate the immune system - CORRECT ANSWERS
|\ |\ |\ |\ |\ |\ |\ |\ |\
✔✔d. to turn a gene on or off
|\ |\ |\ |\ |\ |\ |\
What is the first thing an RTK (receptor tyrosine kinase)
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
does after binding a signaling molecule?
|\ |\ |\ |\ |\
a. flip from one side of the membrane to the other
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
b. bind to a G-protein
|\ |\ |\ |\
c. form a dimer in the membrane
|\ |\ |\ |\ |\ |\
d. turn on a gene
|\ |\ |\ |\
e. release ATP - CORRECT ANSWERS ✔✔c. form a dimer in
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
the membrane
|\ |\
Some signaling molecules do not need to bind to a cell
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
surface receptor, they bind an internal protein and go all
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