Biology: The Dynamic Science (MindTap Course List)
4th Edition
ISBN: 9781305389892
Author: Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher: Cengage Learning
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Chapter 42, Problem 10TYK
Summary Introduction
Introduction:
In animals, hormones are produced by the neurosecretory neurons. They regulate the processes of reproduction, development, and growth of some of the features of the body. They also regulate the sugar levels, heart rate, water balance, and reproduction in annelids, arthropods, and mollusks. Certain hormones are related in invertebrates and vertebrates.
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Which of these is not a means by which hormones are eliminatedfrom the circulatory system?a. excreted into urine or bileb. bound to binding proteinsc. enzymatically degraded in the blood (metabolism)d. actively transported into cellse. conjugated with sulfate or glucuronic acid
The figure at right presents a schematic of an endocrine pathway
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Gonadotropin
releasing
hormone
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neuron
Luteinizing
hormone
testosterone
Anterior
pituitary
cell
Steroidogenic
cell
Target tissue
cell
Name six hormones secreted by the anterior lobe of the pituitary gland.
Name two hormones secreted by the posterior lobe of the pituitary gland.
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a. stimulates ovarian follicle to secrete estrogen and egg development
b. causes kidneys to conserve water
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e.stim ulates secretion from thyroid gland
f. causes contraction of uterine wall muscles
g. stimulates secretion from adrenal cortex
h. stimulates milk production
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7. Name three target organs of parathyroid hormone.
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10. Name the most important…
Chapter 42 Solutions
Biology: The Dynamic Science (MindTap Course List)
Ch. 42.1 - What is the difference between a hormone and an...Ch. 42.1 - How is endocrine signaling different from...Ch. 42.2 - Prob. 1SBCh. 42.2 - Prob. 2SBCh. 42.3 - Prob. 1SBCh. 42.3 - Prob. 2SBCh. 42.4 - What effect does parathyroid hormone have on the...Ch. 42.4 - Prob. 2SBCh. 42.4 - Prob. 3SBCh. 42.4 - Prob. 4SB
Ch. 42.5 - How do hormones compare structurally and...Ch. 42 - Prob. 1TYKCh. 42 - Prob. 2TYKCh. 42 - When the concentration of thyroid hormone in the...Ch. 42 - Which of the following statements about endocrine...Ch. 42 - Prob. 5TYKCh. 42 - Prob. 6TYKCh. 42 - If the human body is stressed, glucocorticoids: a....Ch. 42 - Prob. 8TYKCh. 42 - Prob. 9TYKCh. 42 - Prob. 10TYKCh. 42 - Prob. 11TYKCh. 42 - Prob. 12TYKCh. 42 - Discuss Concepts In integrated pest management, a...Ch. 42 - Prob. 14TYKCh. 42 - Prob. 15TYKCh. 42 - Prob. 1ITDCh. 42 - Prob. 2ITDCh. 42 - Prob. 3ITDCh. 42 - Researchers measured prolactin and growth hormone...
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- A hormone differs from a neurotransmitter in thata. hormones act extracellularly, whereas neurotransmitters act withinthe cell that synthesized them.b. hormones are released only by neurons, whereas neurotransmittersare released by many different types of cells.c. hormones cause only fast responses (seconds or less) to stimuli,whereas neurotransmitters cause slow responses (minutes to hours)to stimuli.d. hormones affect only epithelial cells, whereas neurotransmittersaffect only muscle cells.e. hormones are released into the bloodstream and can activate manycells in many parts of the body, whereas neurotransmitters arereleased by neurons and affect adjacent cells.arrow_forwardWhat hormone is described? It diffuses easily into target cells and binds to a receptor near the nucleus, subsequently altering both gene expression and cellular metabolism. This hormone has more chemical similarities to a hormone that typically binds to receptors on the plasma membrane than to a hormone that diffuses into the target cells. a.Amine hormoneb. Glucocorticoidc. Steroid Hormoned. Peptide Hormonearrow_forwardWhich of the following statements about steroid and non-steroid hormones is false?a. Non-steroid hormones typically act through second messengers such as cAMP.b. Non-steroid hormones are not lipid soluble and cannot enter the target cell.c. Steroid hormones act usually slower than non-steroid hormones.d. Cortisol and aldosterone are non-steroid hormones that are produced by the cortex of the adrenal glandarrow_forward
- Many cells reduce testosterone to a steroid that has a higher affinity to the androgen receptor. What is the name of this steroid? a. Progesterone. b. Estradiol. c. Cortisol. d. 5 α-dihydrotestosterone.arrow_forwardA tropic hormone is one whose function is to Answers: A.stimulate growth and development. B. stimulate endocrine tissue to secrete hormones. c. stimulate the central nervous system. D. trigger cellular development.arrow_forwardConcerning the half-life of hormones,a. lipid-soluble hormones generally have a longer half-life.b. hormones with a shorter half-life regulate activities with a slowonset and long duration.c. hormones with a shorter half-life are maintained at more constantlevels in the blood.d. lipid-soluble hormones are degraded rapidly by enzymes in the circulatory system.e. water-soluble hormones usually bind to plasma proteins.arrow_forward
- Choose the statement that most accurately predicts the long-term effectof exposure to a substance that prevents the active transport of iodideby the thyroid gland.a. Large amounts of T3 and T4 accumulate within the thyroid follicles,but little is released.b. The person exhibits hypothyroidism.c. The anterior pituitary secretes smaller amounts of TSH.d. The circulating levels of T3 and T4 increase.arrow_forwardTumors that affect the pituitary can lead to decreases in some, but not all, hormones released by the pituitary. A patient with such a tumor exhibits fatigue, weight loss, and low blood sugar. This is probably due to lack of production of a. GH, which leads to loss of muscle mass. b. ACTH, which leads to loss of production of glucocorticoids. c. TSH, which leads to loss of production of thyroxin. d. ADH, which leads to excess urine production.arrow_forwardWhich of the following statements is NOT true about human growth hormone (hGH)? Select one: a. Excessive levels of hGH has been linked with diabetes mellitus. b. Genetically engineered hGH has been used safely to treat dwarfism. c. After the growth plate has sealed, increased levels of hGH results in a widening of the nose. d. hGH is produced in the hypothalamus and secreted by anterior pituitary.arrow_forward
- 1. Some Hormones are derived from tyrosine, example --------------------. A. ADH B. steroids C. Insulin D. Melatonin E. All of the above 2. The hypothalamus controls the secretion of the adenohypophysis by ----------- A. Secretion of releasing and inhibiting factors into a tiny portal system. B. Indirect osmotic control. C. Direct neural stimulation. D. Gap synaptic junctions. E. Altering ion concentrations and pH in the anterior pituitary. 3. All of the followings are correct about Atrial natriuretic factor, except ------------------. A. It is secreted by stretch receptors in the atria B. It inhibits ADH secretion C. It increases urine volume D. It reduces blood pressure E. It decreases GFR 4. Hypothalamus releases ________________ hormone, which stimulate the Pituitary gland to release ____________ hormone. This will stimulate thyroid gland to release its__________. A. Thyrotrophic releasing hormone, Thyroid-stimulating hormone, Thyroid hormones B. Adrenocorticotropic, Corticotropin…arrow_forwardHormones are released into the blooda. at relatively constant levels.b. in large amounts in response to a stimulus.c. in an episodic fashion.d. All of these are correctarrow_forwardWhich of the following statements about hormones is not correct? A. The persistance of a hormone in the blood is usually of short duration.B. The time required for the onset of hormonal effects can vary C. Organ responses to hormones occur as soon as receptors are bound. D. The duration of hormone action is variable.arrow_forward
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