Campbell Biology (11th Edition)
11th Edition
ISBN: 9780134093413
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece
Publisher: PEARSON
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Textbook Question
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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1)What tissue regulates both the adenohypophysis and the neurohypophysis? Does this tissue regulate lots of physiological functions? Give a few examples.
2) All of the following are directly controlled by a hormonal stimulus from the hypothalamus EXCEPT…
a)GH, Growth hormone
b) FSH
c) Oxytocin.
d) TSH, Thyroid Stimulating Hormone
3) How would a tumor in cells that produce TSH affect levels of TSH in the blood?
increase / decrease / normal
4) How would this affect hormone secretion by the target cells of TSH?
increase / decrease / normal
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.
Chapter 45 Solutions
Campbell Biology (11th Edition)
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 - Which of the following is not an accurate...Ch. 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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- 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.arrow_forward21. A young patient is found to have signs and symptoms of osteoporosis, or decreased bone density. The patient undergoes a variety of studies and is found to have a tumor secreting excessive levels of a particular hormone. What hormone could this tumor be secreting? A) Parathyroid hormone B) Calcitonin C) Vitamin D D) Thyroxinearrow_forward1) Gross Anatomy and Basic Function of the Endocrine Glands a)Both the endocrine and nervous systems are major regulating systems of the body; however, the nervous system has been compared to a text message, and the endocrine system to mailing a letter. Briefly explain this comparison. b) Chemically, hormones belong chiefly to two molecular groups, the___ and the___ c) If hormones travel in the bloodstream, why don't all tissues respond to all hormones?arrow_forward
- A dietary deficiency of iodine will lead to which of the following? Question 89 options: a) Decreased production of thyrotropin-releasing hormone (TRH) b) An increased secretion of thyroid-stimulatory hormone (TSH) c) A direct effect on the synthesis of thyroglobulin on ribosomes d) Decreased gene expression due to the inability of receptors to bind to DNAarrow_forwardEpinephrine secretion: a) activates adenylate cyclase in liver and muscle cells. b) activates protein phosphatase 1 in liver and muscle cells. c) activates glycogen phosphorylase a in liver cells. d) inhibits glycogen phosphorylase in brain cells. e) inhibits glycogen phosphorylase b in muscle cells.arrow_forwardWhich of the following hormones interact with intracellular receptors? a) Testosterone b) Prolactin c) thyroid hormone (thyroid hormone) d) Estrogen e) Glucagon f) Vitamin Darrow_forward
- Please 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_forwardWhich 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_forward
- Which 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_forwardWhich hormone acts to raise blood calcium levels, when they are too low? A) TH (T3 and T4) B) PTH C) Calcitonin D) Cortisolarrow_forward
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