Study Guide for Campbell Biology
11th Edition
ISBN: 9780134443775
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece, Martha R. Taylor, Michael A. Pollock
Publisher: PEARSON
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Textbook Question
Chapter 11, Problem 6TYK
Many human diseases (including bacterial infections) and the medicines used to treat them produce their effects by influencing which of the following?
- a. cAMP concentrations in the cell
- b. Ca2+ concentrations in the cell
- c. G-protein pathways
- d. ligand-gated ion channels
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Which of the following questions regarding second messengers is false? a. They are needed to mediate the action of nonpolar regulatory molecules. b. They are released from the plasma membrane into the cytoplasm of cells. c. They are produced in response to the binding of regulatory molecules to receptors in the plasma membrane. d. They produce the intracellular actions of polar regulatory molecules.
Which 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 receptor
Which of the following does NOT generally lead to a phosphate cascade?
A. active transport pumps
B. ligand-gated ion channels
C. receptor tyrosine kinases
D. G protein-coupled receptors
Chapter 11 Solutions
Study Guide for Campbell Biology
Ch. 11 - How do plant hormones (often called plant growth...Ch. 11 - Prob. 2IQCh. 11 - Label the parts in the following diagram of an...Ch. 11 - Prob. 4IQCh. 11 - a. What does a protein kinase do? b. What is a...Ch. 11 - Prob. 6IQCh. 11 - Prob. 7IQCh. 11 - Prob. 8IQCh. 11 - a. What can one conclude from the fact that the...Ch. 11 - Prob. 1SYK
Ch. 11 - Briefly describe the three stages of cell...Ch. 11 - Some signaling pathways alter a proteins activity;...Ch. 11 - Prob. 4SYKCh. 11 - Prob. 1TYKCh. 11 - Steroid hormones a. bind to cell-surface...Ch. 11 - Prob. 3TYKCh. 11 - Prob. 4TYKCh. 11 - Which of the following is a key difference between...Ch. 11 - Many human diseases (including bacterial...Ch. 11 - Prob. 7TYKCh. 11 - If a protein is activated by the addition of a...Ch. 11 - Prob. 9TYKCh. 11 - Prob. 10TYKCh. 11 - From studying the effects of epinephrine on liver...Ch. 11 - You are a Ca2+ ion in a typical animal cell. Where...Ch. 11 - Which of the following molecules is incorrectly...Ch. 11 - Prob. 14TYKCh. 11 - Prob. 15TYK
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- Explain how each of the following is a signaling molecule, an effector molecule or an adaptor molecule 1.cAMP 2.beta-catenin 3.phospholipase Darrow_forwardWhich of the following best describes the type of receptor a beta-antagonist drugs acts on a.Ligand-regulated transmembrane enzymes b.Ion channel c.G protein-coupled receptor d.Intracellular lipid-soluble signalingarrow_forwardHydrophobic signaling molecules act by a. binding to plasma proteins b. starting second messenger systems c. binding to receptors inside the cell d. starting action potentialsarrow_forward
- Which of the following are true of endocannabinoids? (Choose more than 1 answer) A. bind to cannibinoid receptors b. endogeneous c. lipid based d. neurotransmitters e. retrogradearrow_forwardWhich of the following enzymes does NOT catalyzes the formation a second messenger? A. PI3K B. Protein kinase C C. Phospholipase C D. Guanylyl cyclase Which of the following statements is correct? A. Lipolysis is inhibited by epinephrine and glucagon B. Phosphorylation of triacylglycerol lipase inhibits its activity C. Activation of protein kinase A inhibits lipolysis D. Fatty acids are activated in mitochondria before undergoing b-oxidation E. Lipolysis is stimulated by cAMP F. None of the abovearrow_forwardThe hormones known as "catecholamines" (adrenaline, noradrenaline, and dopamine) are not lipid-soluble. Therefore their receptor sites are: O a) On the inside of the plasma membrane O b) On the outside of the plasma membrane O c) In the cell cytoplasm O d) In the cell nucleusarrow_forward
- Insulin is a peptide (protein) hormone. As such, which of the following would be the most likely receptor for this signaling hormone? Select one: a. A transmembrane receptor in the cell membrane b. An intracellular receptorarrow_forwardWhich one of the following is NOT a ligand?A. Glucagon B. Bacterial proteinC. Airarrow_forwarda. Agonist Vs Antagonist b. Receptor Vs enzyme c. Physiologic antagonist Vs inverse agonist d. Facilitated diffusion Vs primary active transport e. Pharmacodynamics Vs Pharmacokinetics Differenciate between them.arrow_forward
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Intro to Cell Signaling; Author: Amoeba Sisters;https://www.youtube.com/watch?v=-dbRterutHY;License: Standard youtube license