Campbell Biology in Focus (2nd Edition)
2nd Edition
ISBN: 9780321962751
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece
Publisher: PEARSON
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Chapter 32.2, Problem 1CC
Summary Introduction
To explain:
Whether cells differ in their response to a hormone if they have the same receptor for that hormone.
Introduction:
The organs of endocrine system release chemical signal as hormones. A hormone is released by the organ system when it receives an internal stimulus. The released hormone then reaches the target site by travelling through the cardiovascular system. Then the target organ will respond to this signal. The endocrine system is responsible for the regulation of body
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Why is knowing the KD of a hormone / receptor complex important?
Suppose that two different organs, such as the liver and heart, are sensitive to a particular hormone (such as epinephrine). The cells in both organs have identical receptors for the hormone, and hormone-receptor binding produces the same intracellular second messenger in both organs. However, the hormone produces different effects in the two organs. Explain how this can happen.
Why might hormone receptors on a cell may be altered?
Chapter 32 Solutions
Campbell Biology in Focus (2nd Edition)
Ch. 32.1 - What properties do all types of epithelia share?Ch. 32.1 - Prob. 2CCCh. 32.2 - Prob. 1CCCh. 32.2 - Prob. 2CCCh. 32.2 - Prob. 3CCCh. 32.3 - Is it accurate to define homeostasis as a constant...Ch. 32.3 - Prob. 2CCCh. 32.3 - Prob. 3CCCh. 32.4 - What is the function of the filtration step in...Ch. 32.4 - What advantage does uric acid offer as a...
Ch. 32.4 - WHAT IF? A camel standing in the sun requires much...Ch. 32.5 - Prob. 1CCCh. 32.5 - Prob. 2CCCh. 32.5 - WHAT IF? If blood pressure in the afferent...Ch. 32 - The body tissue that consists largely of material...Ch. 32 - Prob. 2TYUCh. 32 - Which process in the nephron is least selective?...Ch. 32 - Homeostasis typically relies on negative feedback...Ch. 32 - Prob. 5TYUCh. 32 - In which of the following species should natural...Ch. 32 - Prob. 7TYUCh. 32 - Prob. 8TYUCh. 32 - Prob. 9TYUCh. 32 - Prob. 10TYUCh. 32 - FOCUS ON ORGANIZATION In a short essay (100-150...Ch. 32 - SYNTHESIZE YOUR KNOWLEDGE These macaques (Macaca...
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- A hormone molecule binds to a receptor on a cell membrane. It doesnt enter the cell; rather, the binding activates a second messenger inside the cell that triggers an amplified response to the hormonal signal. Is the signaling molecule a steroid or a nonsteroid hormone?arrow_forwardwhy is a cell unable to respond to epinephrine signalingarrow_forwardExplain how the cellular response to a particular hormone canvary among different cell types.arrow_forward
- Why do peptide and steroid hormones bind different kinds of receptor, and how does this difference affect the resulting signaling pathways in the target cell?arrow_forwardThe reduction of cell-surface receptors in response to stimulation by a specific hormone molecule is called_____________________.arrow_forwardSuppose you are studying a cell’s response to a particularhormone. You observe that the cell produces the same response to thehormone whether or not the cell is treated with a chemical that blockstranscription. What can you surmise about the hormone and its receptor?arrow_forward
- Describe intracellular receptors, using estrogen receptors as anexamplearrow_forwardCell signals with short effects ONLY on the cell which produced the signal in the first place are? a. juxtacrine b. autocrine c. paracrine d. endocrinearrow_forwardExplain why second messengers are needed for peptidehormones.arrow_forward
- What is the difference between a G protein and a receptor tyrosine kinase? Give an example of a hormone that uses each.arrow_forwardWhy is the fact that a monomeric hormone binds simultaneously to two identical receptor molecules, thus promoting the formation of a dimer of the receptor, considered remarkable?arrow_forwardExplain why second messenger systems are needed for peptide hormones.arrow_forward
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Intro to Cell Signaling; Author: Amoeba Sisters;https://www.youtube.com/watch?v=-dbRterutHY;License: Standard youtube license