Biology: The Dynamic Science (MindTap Course List)
4th Edition
ISBN: 9781305389892
Author: Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher: Cengage Learning
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Textbook Question
Chapter 9, Problem 2TYK
Which of the following could not elicit a signal transduction response?
a. a protein kinase
b. a virus mimicking a normal signal molecule
c. a peptide hormone
d. a steroid hormone
e. a neurotransmitter
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Students have asked these similar questions
Paracrine signaling is characterized by ligands that are
a. produced by the cell itself.
b. secreted by neighboring cells.
c. present on the plasma membrane of neighboring cells.
d. secreted by distant cells.
How does the function of an intracellular receptor differ from that of a membrane receptor?
a. The intracellular receptor binds a ligand.
b. The intracellular receptor binds DNA.
c. The intracellular receptor activates a kinase.
d. The intracellular receptor functions as a second messenger.
Amplification of a chemical signal occurs when?
a.
phosphorylation of proteins by protein kinase receptors is balanced by the immediate removal of phosphate groups by phosphatases
b.
a receptor in the plasma membrane activates several “first messenger” molecules while a signal molecule is bound to it
c.
a cAMP molecule activates one protein kinase molecule before being converted to AMP
d.
a receptor activates a single first messenger and a single second messenger
Chapter 9 Solutions
Biology: The Dynamic Science (MindTap Course List)
Ch. 9.1 - What accounts for the specificity of a cellular...Ch. 9.2 - Prob. 1SBCh. 9.2 - Prob. 2SBCh. 9.3 - Prob. 1SBCh. 9.3 - Prob. 2SBCh. 9.3 - Prob. 3SBCh. 9.3 - Prob. 4SBCh. 9.3 - Prob. 5SBCh. 9.3 - Prob. 6SBCh. 9.4 - What distinguishes a steroid receptor from a...
Ch. 9.4 - By what means does a specific steroid hormone...Ch. 9.5 - Prob. 1SBCh. 9 - In signal transduction, which of the following is...Ch. 9 - Which of the following could not elicit a signal...Ch. 9 - A cell that responds to a signaling molecule is...Ch. 9 - Prob. 4TYKCh. 9 - Prob. 5TYKCh. 9 - Which of the following is incorrect about pathways...Ch. 9 - Which of the following would not inhibit signal...Ch. 9 - Prob. 8TYKCh. 9 - Prob. 9TYKCh. 9 - Prob. 10TYKCh. 9 - Discuss Concepts Describe the possible ways in...Ch. 9 - Discuss Concepts Is providing extra insulin an...Ch. 9 - Discuss Concepts There are molecules called GTP...Ch. 9 - Discuss Concepts Why do you suppose cells evolved...Ch. 9 - How would you set up an experiment to determine...Ch. 9 - Prob. 16TYKCh. 9 - Prob. 1ITDCh. 9 - Prob. 2ITDCh. 9 - Prob. 3ITD
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- Scaffold proteins (a) release kinases and phosphatases into the extracellular fluid (b) bind G proteins to cell membranes (c) increase accuracy but slow signaling cascades (d) organize groups of intracellular signaling molecules into signaling complexes (e) are transcription factors found mainly in plant cellsarrow_forwardWhat two steps occur in cell signaling occur AFTER the signal has been detected by a cell surface receptor? a. transduction and inflection b. transduction and amplification c. amplification and termination d. amplification and diversionarrow_forwardWhich receptor undergoes clustering and autophosphorylation in response to activation by a signal? Group of answer choices: a)Ligand-gated ion channels b)Receptor Tyrosine Kinases (RTKs) c)G-Protein Coupled Receptors (GPCRs) d)Nuclear Receptorsarrow_forward
- During cell signaling, binding of a ligand to the outside of a cell leads to: A. A signal being sent inside the cell B. The ligand being transported into the cell C. A and B D. None of the abovearrow_forwardA biochemist is designing a new drug that will mimic the shape and function of a particular intercellular signaling molecule. Therefore she must produce a molecule that will bind to the receptor protein and... A. produce a cellular response by altering the Na+/K+ pump located near the receptor site. B. induce a change in the receptor molecule shape, which will ultimately prevent a cellular response. C. induce a change in the receptor molecule shape, which will ultimately produce a cellular response. D. induce a change in the phospholipid bilayer that causes a polar reversal allowing the molecules to be endocytose (engulfed).arrow_forwardWhat event is common to ALL signal transduction pathways? A) Calcium ions bind to/ activate proteins. B) Cyclic nucleotides are formed. C) Proteins change in shape. D) Phosphates are transferred between molecules. E) Protons are transferred between molecules.arrow_forward
- G proteins (a) relay a message from an activated receptor to an enzyme that activates a second messenger (b) are GTP molecules (c) terminate cell signaling (d) directly activate protein kinases (e) function as first messengersarrow_forwardName the steps that occur when a signal binds to a receptor on a responding cell.arrow_forwardThe same signal can have different effects in different cells because there a. are different receptor subtypes that initiate different signal transduction pathways. b. may be different coactivators in different cells. c. may be different target proteins in different cells’ signal transduction pathways. d. All of the choices are correct.arrow_forward
- Drugs and other medicine uses the concept of signaling. Cite some drugs how they mimic natural signal molecules. EXPLAIN EXTRENSIVELYarrow_forwardIn intercellular signaling pathways, some receptor proteins can also act as a transcription factor (changing gene expression), because these receptors are ________. A) Group of answer choices B) Intracellular receptors C) Membrane bound receptors D) G protein coupled receptors E) Enzyme linked receptors F) Fast ligand-gated ion channelsarrow_forwardEach adenylyl cyclase molecule produces many cAMP molecules in an example of (a) receptor up-regulation (b) receptor down-regulation (c) signal amplification (d) scaffolding (e) similarities produced by evolutionarrow_forward
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