Cell Signaling
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Assessment
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Callison Breslin
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Biology
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11th - 12th Grade
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3K plays
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Medium
Student preview
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15 questions
Show answers
1.
Multiple Choice
In cell signaling, how is the flow of specific ions
regulated?
Opening and closing of ligand-gated channels
Transduction
Cytoskeleton rearrangement
Endocytosis
2.
Multiple Choice
Many signal transduction pathways use second messengers to:
transport a signal through the lipid bilayer portion of the plasma membrane.
relay a signal from the outside to the inside of the cell.
relay the message from the inside of the membrane throughout the cytoplasm.
amplify the message by phosphorylating proteins.
3.
Multiple Choice
Which of the following can activate a protein by transferring a phosphate group to it?
cAMP
G proteins
phosphodiesterase
protein kinase
4.
Multiple Choice
Of the following, a receptor protein in a membrane that recognizes a chemical signal is most similar to
the active site of an enzyme in the cytoplasm that binds to a specific substrate.
RNA specifying the amino acids in a polypeptide.
genes making up a chromosome.
an enzyme with an optimal pH and temperature for activity.
5.
Multiple Choice
What could happen to the target cells in an animal that lack receptors for local regulators?
They could compensate by receiving nutrients via an α factor.
They could develop normally in response to neurotransmitters instead.
They could divide but never reach full size.
They would not be able to multiply in response to growth factors from nearby cells.
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