Campbell Biology
12th Edition
ISBN: 9780135188743
Author: Urry
Publisher: PEARSON
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Textbook Question
Chapter 45.3, Problem 1CC
If a hormone pathway produces a transient response to a stimulus. how would shortening the stimulus duration affect the need for negative feedback?
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Chapter 45 Solutions
Campbell Biology
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 - Prob. 1TYUCh. 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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- Give two examples of feedback control of hormone activity.arrow_forwardMechanisms by which hormones regulate cellular processes: Name a hormone and specify where it is produced. Name one of this hormone’s target tissues and explain where in a target cell you would expect to find the receptors for this hormone. Describe how the presence of the hormone alters the function of its target tissue.arrow_forwardA new hormone is discovered that binds to receptors on the target surface. Describe the chemical class of hormone that is hormone belong to and explain how you could discern this class? (Subject: Human physiology)arrow_forward
- Long-loop feedback does not exist for prolactin. Explain why?arrow_forwardDistingish steroid from amino acid based hormones. Which act via second messenger system? Why must they use this method of target cell stimulation? Short answerarrow_forwardIf a hormone interacts with a membrane-bound receptor, then the cell’s DNA will be stimulated to synthesize and secrete a protein. True or False?arrow_forward
- Suppose that two different organs, such as the liver and heart, are sensitive to a particular hormone (such as epinephrine). The cells in both organs have identical receptors for the hormone, and hormone-receptor binding produces the same intracellular second messenger in both organs. However, the hormone produces different effects in the two organs. Explain how this can happen.arrow_forwardFeedback loops regulate the release of hormones in either a positive or negative loop. Consider this example: The hypothalamus releases thyrotropin releasing hormone (TRH), which stimulates the pituitary to release the TSH (thyroid stimulating hormone). TSH then stimulates thyroid gland to release thyroid hormone. When elevated levels of thyroid hormone are detected by the hypothalamus and pituitary further release of TRH and TSH is suppressed. a. What type of feedback loop is described and briefly explain that type of Feedback loop?arrow_forwardFeedback loops regulate the release of hormones in either a positive or negative loop. Consider this example: The hypothalamus releases thyrotropin releasing hormone (TRH), which stimulates the pituitary to release the TSH (thyroid stimulating hormone). TSH then stimulates thyroid gland to release thyroid hormone. When elevated levels of thyroid hormone are detected by the hypothalamus and pituitary further release of TRH and TSH is suppressed. a. What type of feedback loop is described and briefly explain that type of feedback loop? * Your answer (LENGHT DOESN'T MATTER, I NEED IT ASASP PLEASE)arrow_forward
- The effector is the organ that response to the release of hormones in the body. Based on diagram what organ would be the effector?arrow_forwardFeedback loops regulate the release of hormones in either a positive or negative 上二三一三 I loop. Consider this example: The hypothalamus releases thyrotropin-releasing hormone (TRH), which stimulates the pituitary to release the TSH (thyroid-stimulating hormone). TSH then stimulates thyroid gland to release thyroid hormone. When elevated levels of thyroid hormone are detected by the hypothalamus and pituitary further release of TRH and TSH is suppressed. B. What would happen to the levels of TRH and TSH if a tumor of the thyroid gland were discovered resulting in uncontrolled release of the thyroid hormone from the tumor itself?arrow_forwardWhat is it that provides the negative feedback signal for a hormone that is regulated by a humoral stimulus? Explain.arrow_forward
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