CAMPBELL BIOLOGY MOD MASTERING (18 WEEK)
12th Edition
ISBN: 9780136920335
Author: Urry
Publisher: PEARSON
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Textbook Question
Chapter 11.3, Problem 2CC
When a signal transduction pathway involves a phosphorylation cascade, how does the cell's response get turned off?
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When a signal transduction pathway involves a phosphorylation cascade, how does the cell’s response getturned off?
How is an extracellular signal converted to an intracellular signal in signal transduction? Give a specific example.
What is the benefit of using second messengers and phosphorylation cascades during the transduction step of cell signaling?
Chapter 11 Solutions
CAMPBELL BIOLOGY MOD MASTERING (18 WEEK)
Ch. 11.1 - Explain how signaling is involved in ensuring that...Ch. 11.1 - In liver cells, glycogen Phosphorylase acts in...Ch. 11.1 - Prob. 3CCCh. 11.2 - Prob. 1CCCh. 11.2 - WHAT IF? What would the effect be if a cell made...Ch. 11.2 - MAKE CONNECTIONS How is ligand binding similar to...Ch. 11.3 - What is a protein kinase, and what is its role in...Ch. 11.3 - When a signal transduction pathway involves a...Ch. 11.3 - What is the actual signal that is being transduced...Ch. 11.3 - WHAT IF? If you exposed a cell to a ligand that...
Ch. 11.4 - How can a targct cell's response to a single...Ch. 11.4 - WHAT IF? If two cells have different scaffolding...Ch. 11.4 - Prob. 3CCCh. 11.4 - Prob. 4CCCh. 11.5 - Give an example of apoptosis during embryonic...Ch. 11.5 - WH AT IF? If apoptosis occurred when it should...Ch. 11 - What determines whether a cell responds to a...Ch. 11 - How are the structures of a GPCR and an RTK...Ch. 11 - What is the difference between a protein kinase...Ch. 11 - What mechanisms in the cell terminale its response...Ch. 11 - What is an explanation for the similarities...Ch. 11 - Binding of a signaling molecule to which type of...Ch. 11 - The activation of receptor tyrosinc kinases is...Ch. 11 - Lipid-soluble signaling molecules, such as...Ch. 11 - Consider this pathway: epinephrine G...Ch. 11 - Apoptosis involves all but which of the following?...Ch. 11 - Which Observation suggestcd to Sutherland the...Ch. 11 - Prob. 7TYUCh. 11 - DRAW IT Draw the following apoptotic pathway,...Ch. 11 - EVOLUTION CONNECTION Identify the evolutlonary...Ch. 11 - Prob. 10TYUCh. 11 - SCIENCE, TECHNOLOGY, AND SOCIETY The aging process...Ch. 11 - WRITE ABOUT A THEME: ORGANIZATION The properties...Ch. 11 - SYNTHESIZE YOUR KNOWLEDGE There are five basic...
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- What is the sequence of events that takes place in cell signaling?arrow_forwardWhat is the main benefit of cell signaling via direct physical contact and cell signaling over short distances (ex: nerve cell signaling)?arrow_forwardIn 40 words or fewer, explain what an enzyme cascade is in the context of signal transduction pathways, and why these might be beneficial to the organism.arrow_forward
- Why is the lifetime of second messengers so crucial to signaling efficiency? Example: Genetically engineering a second messenger by increasing its lifetime would decrease the efficiency of its signal in a cell's signaling system.arrow_forwardIn the regulation of enzyme activity by phosphorylation (as discussed in class), the introduction of phosphate to the enzyme being controlled: requires a protein phosphatase enzyme but not ATP requires a protein phosphatase enzyme plus ATP O requires a protein kinase enzyme but not ATP O requires a protein kinase enzyme plus ATParrow_forwardWhich of the following describes the way in which phosphorylation cascades can improve signal transduction efficiency in a signal transduction pathway? A B с D They facilitate the amplification of the initial signal. They counter the effects of protein phosphatases. They ensure the production of the correct cellular response. They decrease the speed of signal transduction in the pathway.arrow_forward
- What is one disadvantage of signal transduction being a pathway?arrow_forwardIn terms of cell communication, compare and contrast the action of hydrophilic versus hydrophobic ligands (signaling molecules). What type of receptor is used by these ligands? How does each type of ligand influence cell activity?arrow_forwardMolecule X is a soluble protein that is secreted in response to extracellular signal Y. Which sorting signal must molecule X have?arrow_forward
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