Modified Mastering Chemistry With Pearson Etext -- Standalone Access Card -- For Fundamentals Of General, Organic, And Biological Chemistry (8th Edition)
8th Edition
ISBN: 9780134261287
Author: McMurry
Publisher: PEARSON
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Question
Chapter 28, Problem 28.17UKC
Interpretation Introduction
Interpretation:
The step in which the signal gets amplified and the way in which amplification takes place have to be described briefly.
Concept Introduction:
- Hormones: Hormones are chemical messengers which are secreted by the cell in endocrine system and are transported along the blood to stimulate the target cells having the corresponding receptors.
- There are three proteins which are involved in the releasing of a hormone signal. They are receptor, G protein and an enzyme.
- cAMP is a cyclic
nucleotide and it is a second messenger which is synthesized from ATP by the action of the enzyme adenylyl cyclase. Chemically cAMP is a 3’,5’- adenosine monophosphate. - Enzymes are proteins that increase the
rate of reaction by lowering the energy of activation and so they are known as “biological catalysts”. - Secondary messengers are short lived intracellular signaling molecules. Elevated concentration of these types of messengers leads to rapid alteration in the activity of one or more cellular enzymes.
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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.
Which of the following observations can be explained by the properties of hormone receptors?
a) A certain tissue can react to more than one hormone
b) A certain hormone affects only a specific tissue, not all tissues
c) Some tissues react very quickly to a certain hormone, other tissues take many hours to react to the same hormone
List and describe the functions of the three types of proteins involved in transmission of a hormone signal.
Chapter 28 Solutions
Modified Mastering Chemistry With Pearson Etext -- Standalone Access Card -- For Fundamentals Of General, Organic, And Biological Chemistry (8th Edition)
Ch. 28.1 - While thinking about how a messenger molecule and...Ch. 28.2 - Prob. 28.2PCh. 28.2 - Prob. 28.3PCh. 28.2 - Prob. 28.4PCh. 28.3 - Prob. 28.5PCh. 28.3 - Prob. 28.6KCPCh. 28.4 - Prob. 28.7PCh. 28.4 - Look at the structure of thyroxine shown earlier...Ch. 28.4 - Prob. 28.1CIAPCh. 28.4 - Prob. 28.2CIAP
Ch. 28.4 - Prob. 28.9PCh. 28.5 - Prob. 25.10PCh. 28.6 - Prob. 28.11PCh. 28.6 - Prob. 28.12PCh. 28.6 - Prob. 28.13KCPCh. 28.7 - Identify the functional groups present in THC. Is...Ch. 28.7 - Prob. 28.15KCPCh. 28 - Prob. 28.16UKCCh. 28 - Prob. 28.17UKCCh. 28 - Prob. 28.18UKCCh. 28 - Prob. 28.19UKCCh. 28 - Prob. 28.20UKCCh. 28 - Prob. 28.21UKCCh. 28 - Prob. 28.22APCh. 28 - Prob. 28.23APCh. 28 - Prob. 28.24APCh. 28 - Prob. 28.25APCh. 28 - Prob. 28.26APCh. 28 - Prob. 28.27APCh. 28 - Prob. 28.28APCh. 28 - Prob. 28.29APCh. 28 - Prob. 28.30APCh. 28 - Prob. 28.31APCh. 28 - Prob. 28.32APCh. 28 - Prob. 28.34APCh. 28 - Prob. 28.35APCh. 28 - Prob. 28.36APCh. 28 - Prob. 28.37APCh. 28 - How does epinephrine reach its target tissues?Ch. 28 - Prob. 28.39APCh. 28 - Prob. 28.40APCh. 28 - Prob. 28.41APCh. 28 - Prob. 28.42APCh. 28 - What enzyme catalyzes hydrolysis of the second...Ch. 28 - Prob. 28.44APCh. 28 - Prob. 28.45APCh. 28 - Prob. 28.46APCh. 28 - Prob. 28.47APCh. 28 - Prob. 28.48APCh. 28 - Prob. 28.49APCh. 28 - Prob. 28.50APCh. 28 - Prob. 28.51APCh. 28 - Prob. 28.52APCh. 28 - Prob. 28.53APCh. 28 - Prob. 28.54APCh. 28 - Prob. 28.55APCh. 28 - Prob. 28.56APCh. 28 - Prob. 28.57APCh. 28 - Prob. 28.58APCh. 28 - Prob. 28.59APCh. 28 - Prob. 28.60APCh. 28 - Prob. 28.62APCh. 28 - Prob. 28.63APCh. 28 - Prob. 28.64APCh. 28 - Prob. 28.65APCh. 28 - Prob. 28.66APCh. 28 - Prob. 28.67APCh. 28 - Prob. 28.68APCh. 28 - Prob. 28.69APCh. 28 - Prob. 28.70APCh. 28 - Prob. 28.71APCh. 28 - Prob. 28.72APCh. 28 - Prob. 28.73APCh. 28 - Prob. 28.74APCh. 28 - Prob. 28.75APCh. 28 - Prob. 28.76APCh. 28 - Why do we have brain receptors that respond to...Ch. 28 - Prob. 28.78APCh. 28 - Prob. 28.79APCh. 28 - Prob. 28.80APCh. 28 - Prob. 28.81APCh. 28 - Prob. 28.82APCh. 28 - Prob. 28.83CPCh. 28 - Prob. 28.84CPCh. 28 - Prob. 28.85CPCh. 28 - Prob. 28.86CPCh. 28 - Prob. 28.87CPCh. 28 - Prob. 28.88CPCh. 28 - Prob. 28.89CPCh. 28 - Prob. 28.90CPCh. 28 - Prob. 28.91CPCh. 28 - Prob. 28.92CPCh. 28 - Prob. 28.93CPCh. 28 - Prob. 28.94GPCh. 28 - Prob. 28.95GP
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- Researchers measured prolactin and growth hormone in the blood plasma of six subjects at regular intervals over a 24-hour period. The investigators were interested in determining if the levels of these two hormones cycle over a 24-hour period. The Figure presents the results of their experiments, with the y axis values showing the amount of each hormone expressed as a percentage of the 24-hour mean value, and each point showing the average of the six subjects levels. FIGURE Mean concentrations of prolactin and growth hormone in plasma, averaged for six subjects and expressed as a percentage of the average concentrations measured for the 24-hour period. Do the results support the hypothesis that the changes in prolactin level over a 24-hour period are associated with the sleepwake cycle? Source: From J. F. Sassin et al. 1972. Human prolactin: 24-hour pattern with increased release during sleep. Science 177:12051207.arrow_forwardDescribe how hormone receptors can play a role in affecting the size of the responses of tissues to hormones.arrow_forwardWhich of the following responses would NOT occur upon activation of MC2R (G protein coupled receptor that regulates the production of cortisol) ? a. Increased transcription of the genes for the enzymes to make cortisol b. Activation of enzymes required to make cortisol c. Increased transcription of the cortisol gene d. Decreased activity of miRNA that target the enzymes required to make cortisolarrow_forward
- Suppose 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_forwardThe reduction of cell-surface receptors in response to stimulation by a specific hormone molecule is called_____________________.arrow_forwardMechanisms by which hormones regulate cellular processes: Name a hormone and specify where it is produced. Name one of this hormone’s target tissues and explain where in a target cell you would expect to find the receptors for this hormone. Describe how the presence of the hormone alters the function of its target tissue.arrow_forward
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