CAMPBELL BIOLOGY (18W)
12th Edition
ISBN: 9780136858256
Author: Urry
Publisher: PEARSON
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Chapter 45, Problem 3TYU
Growth factors are local regulators that
(A) are produced by the anterior pituitary.
(B) are modified fatty acids that stimulate bone and cartilage growth.
(C) are found on the surface of cancer cells and stimulate abnormal cell division.
(D) bind to cell-surface receptors and stimulate growth and development of target cells.
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78. The various types of endocrine glands all have extensive Golgi Apparatus. Which of the following act by integrating functions to ensure homeostasis in an adult human by releasing molecules into the circulatory system?
a) adrenal glands
b) pituitary gland
c) thyroid gland
d) gonads
e) all are true
2.
State which hormone is probably responsible for each physiological phenomenon described below
and explain why.
a) Blood glucose levels remained constant even though someone went 20 hours without eating or
drinking.
b) Heart rate and breathing rate increase when someone is awoken by a loud noise in the middle of
the night.
c) A grown man's jaw and forehead become thick and deformed.
Steroid hormones ...
a) ... transmits its effects mainly by binding to membrane receptors.
b) ... are water soluble.
c) ... conveys its effects mainly through so-called second messengers.
d) ... is transported in the blood by means of carrier protein.
Chapter 45 Solutions
CAMPBELL BIOLOGY (18W)
Ch. 45.1 - How do response mechanisms in target cells differ...Ch. 45.1 - What type of gland would you expect to secrete...Ch. 45.1 - WHAT IF? Predict what would happen if you...Ch. 45.2 - What are the roles of oxytocin and prolactin in...Ch. 45.2 - How do the two fused glands of the pituitary gland...Ch. 45.2 - WHAT IF? 2192 Propose an explanation for why...Ch. 45.2 - what if? Lab tests of two patients, each...Ch. 45.3 - If a hormone pathway produces a transient response...Ch. 45.3 - Prob. 2CCCh. 45.3 - Prob. 3CC
Ch. 45 - MAKE CONNECTIONS What forms of signaling activate...Ch. 45 - Which major endocrine organs described in Figure...Ch. 45 - Prob. 45.3CRCh. 45 - Prob. 1TYUCh. 45 - Prob. 2TYUCh. 45 - Growth factors are local regulators that (A) are...Ch. 45 - Prob. 4TYUCh. 45 - Prob. 5TYUCh. 45 - Which of the following is the most likely...Ch. 45 - The relationship between the insect hormones...Ch. 45 - DRAW IT In mammals, milk production by mammary...Ch. 45 - Prob. 9TYUCh. 45 - Prob. 10TYUCh. 45 - Level 3: Synthesis/Evaluation 11. WRITE ABOUT A...Ch. 45 - Prob. 12TYU
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- Which of the following hormones interact with intracellular receptors? a) Testosterone b) Prolactin c) thyroid hormone (thyroid hormone) d) Estrogen e) Glucagon f) Vitamin Darrow_forwardPlease give the answers onlyarrow_forwardEndocrine downregulation ... a) ... occurs in target cells that respond to hormones that are present in constant amounts in the blood. b) ... leads to the increased sensitivity of the target organ to the hormone. c) ... leads to a decrease in the number of receptors in the target cell. d)... occurs in part due to increased receptor synthesis in the target cell.arrow_forward
- Which of the following statements about the half-life of hormones is correct? a) Hormones with a short half-life are present in relatively constant amounts in the blood b) Hormones with a short half-life regulate slow functions c) Fat-soluble hormones usually have a relatively long half-life d) Fat-soluble hormone is rapidly broken down by enzymes in the blood circulation e) Water-soluble hormones usually bind to plasma proteins (transport proteins)arrow_forwardWhich of the following can regulate the release of hormone from an endocrine tissue? a) Non-hormonal substances in the blood b) Other hormones c) Negative feed-back mechanisms d) The nervous systemarrow_forward3) Parathyroid hormone: a) is secreted when blood calcium levels are too high. b) is required for the synthesis of collagen fibers. c) stimulates osteoclasts to break down bone tissue. d) stimulates cells in the epiphyseal plate to divide.arrow_forward
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