Campbell Biology (10th Edition)
10th Edition
ISBN: 9780321775658
Author: Jane B. Reece, Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Robert B. Jackson
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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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.
1) 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?
Chapter 45 Solutions
Campbell Biology (10th Edition)
Ch. 45.1 - How do response mechanisms in target cells differ...Ch. 45.1 - Prob. 2CCCh. 45.1 - Prob. 3CCCh. 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 - Prob. 45.1CRCh. 45 - Prob. 45.2CRCh. 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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- 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
- 16)Tamoxifen acts as a ............. pharmaceutical agent: a)Estrogen receptor–blocking b)hormone therapy drug, is used to treat breast cancers c)Non–cell cycle active d)All choices e) both a and barrow_forwardIdentify the endocrine glands and tissues in the diagram on the right. (a) _______(c) _______(e) _______(g) _______(i) _______(k) _______(m) _______(b) _______ (d) _______(f) _______(h) _______(j) _______(l) _______arrow_forwardQ17arrow_forward
- Your friend Bud has the talent to be a star basketball center—if only he weren’t 5 foot 8. Being well- intentioned but ignorant, you start injecting him with growth hormone as he sleeps each night. You. think this is a clever strategy, but after a time you notice that he hasn’t grown an inch. Instead, his jaw and forehead seem to have gotten disproportionately large and his hands and feet are swollen. Explain why the growth hormone didn’t make Bud grow taller and why it had the effect it did. What disease state do these changes mimic?arrow_forwardI. A student, half an hour after the dinner, containing about 150 g of carbohydrates, 20 g of fat, and 40 g of protein, is sitting in a chair and reading. a) name the hormone level in blood that is elevated during resting; describe the steps of its synthesis, name the secretion stimuli and target tissues; b) present a diagram of the hormonal signal transduction to target cells; c) draw diagrams reflecting the student's metabolic changes of glucose and fats in adipocytes; d) enumerate the regulatory enzymes of fatty acid synthesis from glucose that have their activity and amount increased under the influence of the mentioned hormone.arrow_forwardUnder stressful conditions epinephrine is released from the adrenal medulla. The release of epinephrine has which of the following effects on glucose metabolism? A) glycogenolysis is stimulated B) glycogenesis is inhibited C) adenylate cyclase is activated D) Both A and B E) All of the abovearrow_forward
- On a realistic drawing of the endocrine glands in the body (such as a photocopy of Figure 17.1), indicate the gland associated with (a) cretinism, (b) diabetes mellitus, (c) acromegaly, (d) secreting thyroid-stimulating hormone, (e) secreting a hormone that regulates the nightly activities of our circadian rhythms, (f) secreting estrogens, (g) secreting DHEA.arrow_forwardDescribe the significance of growth hormone in human growth and differentiation process.arrow_forwardActivated G proteins can ... a) ... cause ion channels to open or close. b) ... increase the synthesis of cAMP. c) ... activate adenylate cyclase. d) ... increase the activity of IP3.arrow_forward
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