Human Biology (MindTap Course List)
11th Edition
ISBN: 9781305112100
Author: Cecie Starr, Beverly McMillan
Publisher: Cengage Learning
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Textbook Question
Chapter 15, Problem 2RQ
A hormone molecule binds to a receptor on a cell membrane. It doesn’t enter the cell; rather, the binding activates a second messenger inside the cell that triggers an amplified response to the hormonal signal. Is the signaling molecule a steroid or a nonsteroid hormone?
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Chapter 15 Solutions
Human Biology (MindTap Course List)
Ch. 15 - Distinguish among hormones, neurotransmitters,...Ch. 15 - A hormone molecule binds to a receptor on a cell...Ch. 15 - Which hormones produced in the posterior and...Ch. 15 - Prob. 4RQCh. 15 - Give two examples of feedback control of hormone...Ch. 15 - __________ are molecules released from a signaling...Ch. 15 - Hormones are produced by ______________. a....Ch. 15 - ADH and oxytocin are hypothalamic hormones...Ch. 15 - _______ has effects on body tissues in general. a....Ch. 15 - Which of the following stimulate the secretion of...
Ch. 15 - _________lowers blood sugar levels; ____________...Ch. 15 - The pituitary detects a rising hormone...Ch. 15 - Second messengers assist _________. a. steroid...Ch. 15 - Match the hormone source with the closest...Ch. 15 - Match the endocrine control concepts.Ch. 15 - Addisons disease develops when the adrenal cortex...Ch. 15 - A physician sees a patient whose symptoms include...Ch. 15 - Prob. 3CTCh. 15 - Secretion of the hormone ADH may decrease or stop...
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- Under in vivo conditions, chronic treatment with a noncompetitive antagonist may lead to the up-regulation of the targeted receptor over time. True False Cytokines are peptides that are generally made in advance by specific types of cells, stored in vesicles, and act as autocrine or paracrine factors. True False Thyroid hormone is stored in an extracellular compartment. True Falsearrow_forwardWhy is the fact that a monomeric hormone binds simultaneously to two identical receptor molecules, thus promoting the formation of a dimer of the receptor, considered remarkable?arrow_forwardPlace the following steps (showing how a steroid hormone changes the activities of its target cells) in order of what happens first, second, third, fourth, and last. Refer to image. The hormone-receptor complex enters the nucleus of the cell and binds to the DNA. The steroid hormone passes through the cell membrane. The hormone attaches to a receptor in the cytoplasm, forming a hormone-receptor complex. A gene in the DNA is activated, and transcription and translation take place. Proteins that alter the cell′s activities, such as enzymes, are made. 2. Place the following steps (showing how a hydrophilic hormone changes the activities of its target cells) in order of what happens first, second, third, and last. Refer to image. The activity of the target cell is changed by the final enzyme in the cascade. The second messenger activates or deactivates certain enzymes in a cascade fashion. A second messenger is activated. Hormone binds to a receptor protein.arrow_forward
- Signals carried by hormones must eventually be terminated. Describe several different mechanisms for signal termination.arrow_forwardDescribe to me why certain hormones (lipids-based hormones) can move directly through the cell membrane in comparison to hormones (protein-based hormones) have to bind to the outside of the cell and then send secondary messengering inside in order to work? Which hormones are in each of the 2 categories? How does this affect the way we deliver/treat hormone conditions?arrow_forwardWhich of the statements is/are incorrect for hormones? 1) Hormones are non-nutrient chemicals serving as intercellular messengers. 2) Hormones are molecules of low molecular weight and are produced in traces. 3) Hormones give energy and also effect metabolism and growth activities of target cells. 4) Many hormones are produced in inactive form.arrow_forward
- 1) Why are steroid hormones unable to be stored in secretory vesicles? 2) Other than increasing hormone solubility, describe two other consequences of hormones binding to binding proteins.arrow_forwardVisit this link (http://openstaxcollege.org/l/hormonebind) to watch an animation of the events thatoccur when a hormone binds to a cell membrane receptor.What is the secondary messenger made by adenylyl cyclaseduring the activation of liver cells by epinephrine?arrow_forwardAll of the following statements relating to endocrine signaling are correct EXCEPT:arrow_forward
- Why is it regarded extraordinary that a monomeric hormone may attach to two identical receptor molecules simultaneously, hence stimulating the creation of a dimer of the receptor?arrow_forwardWhich statement correctly identifies how a lipid-soluble hormone that diffuses from the blood and through the interstitial fluid identifies which cells in the tissue to act upon? O The cell closest to the diffusion site. O The presence of a receptor located in the cytoplasm or nucleus specific to the hormone in cells. O The presence of a receptor embedded in the plasma membrane of target cells. O The presence of a channel protein embedded in the plasma membrane for the lipid-soluble hormone to diffuse through. Save for Later 80 F3 F4 F5 F6 8 F7 Attempts: 0 of 3 used F8 F9 Submit Answer F10arrow_forwardOne such laboratory study investigated the binding of a hormone to three different receptor proteins in the cell membrane. The data collected are shown in the table below 1) Provide a brief explanation as to why ligand binding toproteins must be a reversible process. 2) Calculate the dissociation constant (Kd) for the hormone binding to each of the three proteins.arrow_forward
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Intro to Cell Signaling; Author: Amoeba Sisters;https://www.youtube.com/watch?v=-dbRterutHY;License: Standard youtube license