Biology
5th Edition
ISBN: 9781260487947
Author: BROOKER
Publisher: MCG
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Chapter 50.4, Problem 1CS
Summary Introduction
To propose: A revised model to depict the effect on Ca2+ homeostasis if bone cells are unable to respond to PTH (parathyroid hormone).
Introduction: Skin cells in the mammals that are receiving regular exposure to sunlight produces vitamin D from the precursor 7-dehydrocholesterol. Blood Ca2+ concentration does not decrease due to the secretion of parathyroid hormone. Bone cells release extra Ca2+ from the bones thereby increasing the concentration of calcium in the blood.
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ZOOM
Short Answer – Choose 3 questions to answer
1. Which would you expect to have a faster effect: a steroid hormone or a peptide
hormone? Explain your answer.
2. Give an example of a hormone that is controlled by a negative feedback loop.
Explain what the hormone regulates and what controls the release and inhibition of
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4. List 5 factors that can affect red blood cell production and/or the ability of red
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Chapter 50 Solutions
Biology
Ch. 50.2 - Prob. 1CSCh. 50.3 - Prob. 1CSCh. 50.3 - Prob. 1EQCh. 50.3 - Prob. 2EQCh. 50.3 - Prob. 3EQCh. 50.4 - Prob. 1CCCh. 50.4 - Prob. 1CSCh. 50.4 - Prob. 2CCCh. 50.5 - Prob. 1CCCh. 50.5 - Prob. 2CC
Ch. 50 - Which is the defining feature of hormones? a. They...Ch. 50 - Steroid hormones are synthesized from ______blank...Ch. 50 - Prob. 3TYCh. 50 - Prob. 4TYCh. 50 - Prob. 5TYCh. 50 - Prob. 6TYCh. 50 - Which of the following pairs of hormones are...Ch. 50 - In invertebrates, molting of larvae is stimulated...Ch. 50 - Which of the following is true of the adrenal...Ch. 50 - Prob. 10TYCh. 50 - Prob. 1CQCh. 50 - Distinguish between type 1 and type 2 diabetes...Ch. 50 - Core Concept: Systems Organ systems often exert...Ch. 50 - Discuss the roles of hormones in growth and...Ch. 50 - Prob. 2COQ
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