Biology
5th Edition
ISBN: 9781260487947
Author: BROOKER
Publisher: MCG
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Chapter 9, Problem 2TY
Summary Introduction
Introduction: Cells have various mechanisms to achieve cell to cell communication including direct intercellular signaling, contact dependent signaling, autocrine signaling, paracrine signaling, and endocrine signaling.
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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.
Cell signaling systems:
A. autocrine B. paracrine C. endocrine D. none among the given
Which will have messenger molecules reach their target cells through the bloodstream?
A
B
C
D
Hydrophobic signaling molecules act by
a. binding to plasma proteins
b. starting second messenger systems
c. binding to receptors inside the cell
d. starting action potentials
Chapter 9 Solutions
Biology
Ch. 9.1 - Figure 9.1 Response of a yeast cell to glucose....Ch. 9.1 - Prob. 1CSCh. 9.1 - Which type of signal, paracrine or endocrine, is...Ch. 9.1 - Prob. 3CCCh. 9.2 - Prob. 1CSCh. 9.2 - Prob. 2CSCh. 9.2 - Prob. 1CCCh. 9.3 - Prob. 1CSCh. 9.3 - Prob. 1CCCh. 9.3 - Prob. 2CC
Ch. 9.3 - In the case of signaling pathways involving...Ch. 9.5 - Prob. 1EQCh. 9.5 - Prob. 2EQCh. 9.5 - Prob. 3EQCh. 9.5 - Prob. 1CCCh. 9 - Prob. 1TYCh. 9 - Prob. 2TYCh. 9 - Prob. 3TYCh. 9 - Prob. 4TYCh. 9 - Prob. 5TYCh. 9 - The relay protein Ras is part of the EGF pathway...Ch. 9 - Prob. 7TYCh. 9 - Prob. 8TYCh. 9 - Prob. 9TYCh. 9 - Prob. 10TYCh. 9 - Prob. 1CQCh. 9 - Conceptual Questions What are the three stages of...Ch. 9 - Prob. 3CQCh. 9 - Prob. 1COQCh. 9 - Prob. 2COQ
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- A cell has epinephrine receptors, yet is unable to respond to epinephrine signaling. One possible reason is: A. The cell has no DNA. B. The cell is missing a functional G-protein or adenylyl cyclase. C. All of the epinephrine receptors are on the cell’s surface. (They’re supposed to be in the cytoplasm!) D. Both A and C.arrow_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_forwardAn unknown ion is flowing out of a neuron, creating an inhibitory response. This unknown ion must... Multiple choices A. Create an end plate potential B. be negatively charged C. be positively charged D. be highly concentrated outside of the neuron E. Be a result of a metabotropic signaling cascadearrow_forward
- Chemical signaling that affects neighboring cells is called ________.a. autocrineb. paracrinec. endocrined. neuronarrow_forwardWhat features are remarkable about steroid receptors? (Select all that apply) A. Steroid receptors are localized in the cytoplasm B. steroid receptors are localized in the plasma membrane C. steroid receptors can translocate to the nucleus D. steroid receptors represent the beginning of a signaling Cascade E. steroid receptors can also function as transcription factorsarrow_forwardDifferent cell-types can use the same receptor-type to detect a common hormone, which leads to the abilitiy of that hormone to trigger multiple physiological responses. A. True B. Falsearrow_forward
- A scientist observes a mutation in the transmembrane region of EGFR that eliminates its ability to be stabilized by binding interactions during dimerization after ligand binding. Which hypothesis regarding the effect of this mutation on EGF signaling is most likely to be correct? a. EGF signaling cascades would be active for longer in the cell. b. EGF signaling cascades would be active for a shorter period of time in the cell. c. EGF signaling cascades would not occur. d. EGF signaling would be unaffected.arrow_forwardWhat type of cell signaling receptor is depicted below a. Cytoplasmic Receptor b. Transmembrane Receptor c. Intracellular Receptor d. Nuclear Receptorarrow_forwardexample of endogenous substances that mediate or transmit noceiptive signaling include. A. substance P, CGRP, bradykinin B.substance P, CGRP,enkaphin C. morphine, substance P, bradykhin D.endorphins, substance P, CGRParrow_forward
- Which of the following exert their cell signaling ability proteteolysis of other proteins? multiple answers A. RAS B. Epidermal Growth factor C. Notch Receptor D. TGF-Beta Receptor E. Estrogen Receptorarrow_forwardExplain the three stages of cell signaling. a. receptor b. transduction c. response. Attach imagesarrow_forwardWhich of the following are methods of cellular signaling? Select one: a. All the answers are correct. b. Connections through fibers of the ECM from one cell to another c. Ligand binding to a receptor in the cell membrane d. Desmosomes ‘pulling’ one cell to another e. Lipid or gas ligand binding to an intracellular receptorarrow_forward
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Intro to Cell Signaling; Author: Amoeba Sisters;https://www.youtube.com/watch?v=-dbRterutHY;License: Standard youtube license