Biology
12th Edition
ISBN: 9780134813448
Author: Audesirk, Teresa, Gerald, Byers, Bruce E.
Publisher: Pearson,
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Textbook Question
Chapter 38, Problem 1AC
A student rescan, her decides to perform an experiment on the effect of the thyroid gland on frog metamorphosis. She sets up three aquaria with tadpoles. She adds thyroxine to the water of one, the drug thiouracil to a second, and nothing to the third. Thiouracil destroys thyroxine. Assuming that the student uses appropriate concentrations, predict what will happen.
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Chapter 38 Solutions
Biology
Ch. 38.1 - describe the four methods of communication between...Ch. 38.1 - Prob. 2CYLCh. 38.1 - Prob. 3CYLCh. 38.2 - Insulin is a large, water-soluble hormone that...Ch. 38.2 - Prob. 1CYLCh. 38.2 - Prob. 2CYLCh. 38.2 - explain the processes of negative and positive...Ch. 38.3 - A common test of thyroid gland function is to...Ch. 38.3 - Prob. 2TCCh. 38.3 - Prob. 3TC
Ch. 38.3 - Prob. 1HYEWCh. 38.3 - Endocrine disruptors have most frequently been...Ch. 38.3 - Prob. 1CYLCh. 38.3 - explain how negative feedback regulates the...Ch. 38.3 - Prob. 5TCCh. 38 - Prob. 1MCCh. 38 - Prob. 2MCCh. 38 - Steroid hormones include a. testosterone. b....Ch. 38 - Prob. 4MCCh. 38 - Prob. 5MCCh. 38 - Prob. 1FIBCh. 38 - Most endocrine hormones fall into three chemical...Ch. 38 - Prob. 3FIBCh. 38 - Prob. 4FIBCh. 38 - The pancreas releases the hormone _________ when...Ch. 38 - Prob. 6FIBCh. 38 - The adrenal cortex releases three major types of...Ch. 38 - Which chemical class of hormones usually attaches...Ch. 38 - Prob. 2RQCh. 38 - Prob. 3RQCh. 38 - Prob. 4RQCh. 38 - Prob. 5RQCh. 38 - Prob. 6RQCh. 38 - A student rescan, her decides to perform an...Ch. 38 - Prob. 2AC
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- Cells of an overactive thyroid can be killed by radioactive iodine. Explain why the thyroids hormone-producing cells take up more radioactive iodine than other cells of the body.arrow_forwardFigure 37.14 Hyperthyroidism is a condition in which the thyroid gland is overactive. Hypothyroidism is a condition in which the thyroid gland is underactive. Which of the conditions are the following two patients most likely to have? Patient A has symptoms including weight gain, cold sensitivity, low heart rate, and fatigue. Patient B has symptoms including weight loss, profuse sweating, increased heart rate, and difficulty sleeping.arrow_forwardIf hormone travel wherever blood goes, why don't all cells respond to all hormones? (Subject: Human physiology)arrow_forward
- A physician examines a patient who reports that he has experienced excessive sweating, irritability, and feverish episodes. Assay of hormones in blood reveal that thyroid hormone levels are abnormally high, and TSH levels are low. An RAIU (radioactive iodine uptake scan) reveals a hot spot on the thyroid, indicating a localized region of intense iodine uptake. What do you predict that this patient’s diagnosis will be? How would you attempt to treat such a condition?arrow_forwardAs a scientist working for a pharmaceutical company, you are asked to enginner bacteria that will produce human growth hormone. The objective is commercial production in oeder to treat individuals who are deficient in this hormone. Describe the steps you would take in order to produce this hormonearrow_forwardAccording to my study guide text book, the thyroid's response to hypersecretion of thyroid-stimulating hormone is metaplasia, dysplasia and/or deoplasia, but the gall bladder hypertrophies with the development of gallstones and the liver experiences hyperplaisa in response to prolonged drug intoxication. I am not understanding why these cellular adaptations occur. To me, it seems like teach organ is having to work harder, and would either hypertrophy or hyperplasia.arrow_forward
- A scientist hypothesizes that the pancreas’s hormone production is controlled by neural stimuli. Which observation would support this hypothesis? a. Insulin is produced in response to sudden stress without a rise in blood glucose. b. Insulin is produced in response to a rise in glucagon levels. c. Beta cells express epinephrine receptors. d. Insulin is produced in response to a rise in blood glucose in the brain.arrow_forwardHelp fill in the blanks Epinephrine is like [glucagon/insulin] in that it stimulates muscles to consume glucose. But it is like [glucagon/insulin] in that it stimulates production of glucose in the liver.arrow_forwardWrite a short essay commenting on the following statement:- “Comparatively-speaking, it is better to damage the adrenal medulla than damage the cortex.” In your essay: Provide an introduction to the functions of the adrenal gland; Say when hormones are elicited (i.e. what is the stimulus to their release); relate this to homeostasis; Discuss the positive and negative impacts that adrenaline promotes in the human body; Include a conclusion that relates to the statement above.arrow_forward
- Examples of second messengers Steroid hormones Prostaglandins and leukotrienes NO and CO Epinephrine I, II, III, IV II, III, IV only I, II, III only I, III, IV onlyarrow_forwardBlood-feeding insects such as mosquitoes inject an anticoagulant into the victims bloodstream. How does this benefit the insect?arrow_forwardFigure 16.14 Goiter, a disease caused by iodine deficiency, results in the inability of the thyroid gland to form T3 and T4 . The body typically attempts to compensate by producing greater amounts of TSH. Which of the following symptoms would you expect goiter to cause? a. Hypothyroidism, resulting in weight gain, cold sensitivity, and reduced mental activity. b. Hyperthyroidism, resulting in weight loss, profuse sweating and increased heart rate. C. Hyperthyroidism, resulting in weight gain, cold sensitivity, and reduced mental activity. d. Hypothyroidism, resulting in weight loss, profuse sweating and increased heart rate.arrow_forward
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