Anatomy & Physiology (6th Edition)
6th Edition
ISBN: 9780134156415
Author: Elaine N. Marieb, Katja N. Hoehn
Publisher: PEARSON
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Chapter 15.2, Problem 4CYU
Summary Introduction
To review:
The location of steroid and peptide hormone synthesis in the cell. Identification of the hormone that can be stored in the vesicles and released by exocytosis.
Introduction:
Hormones are known to be the chemical messengers generated by the cells into the extracellular fluids. Such messengers move through the blood and manage the
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Comparing cells synthesizing secretory proteins and cells secreting steroid hormones, the cells synthesizing the steroid hormones have:
A) more rough ER.
B) more smooth ER
C) equal amounts of smooth and rough ER
D) equal amounts of smooth and rough ER, but more lysosomes.
E) equal amounts of smooth and rough ER, but fewer lysosomes.
One such laboratory study investigated the binding of a hormone to three different receptor proteins in the cell membrane. The data collected are shown in the table below:
1) Provide a brief explanation as to why ligand binding to proteins must be a reversible process.
2) Calculate the dissociation constant (Kd) for the hormone binding to each of the three proteins.
3) Which of the proteins demonstrate the tightest/strongest binding of the hormone? Which demonstrates the least tight binding of the hormone? What is the basis for your answer?
The binding of small amounts of hormones to target cell receptors triggers an intricate signal cascade. Why is the signal cascade necessary? Why not just have a simple molecularmechanism between the hormone and cellular effect?
Chapter 15 Solutions
Anatomy & Physiology (6th Edition)
Ch. 15.1 - Prob. 1CYUCh. 15.1 - Prob. 2CYUCh. 15.1 - What is the difference between a hormone and a...Ch. 15.2 - Prob. 4CYUCh. 15.3 - Prob. 5CYUCh. 15.3 - Consider the signaling mechanisms of water-soluble...Ch. 15.4 - What are the three types of stimuli that control...Ch. 15.5 - Prob. 8CYUCh. 15.6 - Prob. 9CYUCh. 15.6 - Prob. 10CYU
Ch. 15.6 - List the four anterior pituitary hormones that are...Ch. 15.7 - Prob. 12CYUCh. 15.8 - What is the major effect of thyroid hormone?...Ch. 15.8 - Name the cells that release each of the three...Ch. 15.9 - List the three classes of hormones released from...Ch. 15.10 - Synthetic melatonin supplements are available,...Ch. 15.11 - Which hormone does the heart produce and what is...Ch. 15.11 - Prob. 18CYUCh. 15.11 - MAKING connections Diabetes mellitus and diabetes...Ch. 15.11 - MAKING connections Which of the two chemical...Ch. 15 - The major stimulus for release of parathyroid...Ch. 15 - The anterior pituitary secretes all but (a)...Ch. 15 - A hormone not involved in glucose metabolism is...Ch. 15 - Parathyroid hormone (a) increases bone formation...Ch. 15 - Choose from the following key to identify the...Ch. 15 - Prob. 6MCCh. 15 - Testosterone is to the male as which hormone is to...Ch. 15 - If anterior pituitary secretion is deficient in a...Ch. 15 - If there is adequate carbohydrate intake,...Ch. 15 - Hormones (a) are produced by exocrine glands, (b)...Ch. 15 - Some hormones act by (a) increasing the synthesis...Ch. 15 - Absence of thyroid hormone would result in (a)...Ch. 15 - Medullary chromaffin cells are found in the (a)...Ch. 15 - Atrial natriuretic peptide secreted by the heart...Ch. 15 - Prob. 1SAQCh. 15 - Which type of hormone receptorplasma membrane...Ch. 15 - Prob. 3SAQCh. 15 - Name two endocrine glands (or regions) that are...Ch. 15 - The anterior pituitary is often referred to as the...Ch. 15 - The posterior pituitary is not really an endocrine...Ch. 15 - Endemic goiter is not really the result of a...Ch. 15 - How are they hyperglycemia and lipidemia of...Ch. 15 - Name a hormone secreted by a muscle cell and two...Ch. 15 - We have a new patient to consider today. Mr....Ch. 15 - We have a new patient to consider today. Mr....Ch. 15 - We have a new patient to consider today. Mr....
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