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 38, Problem 12TYK
Summary Introduction
To review:
The positive feedback mechanisms that are rare in animals as compared to the negative feedback mechanisms.
Introduction:
The meachnism of the body, wherein the input process is regulated in response to the output of the process, is referred to as feedback mechanism. It can either be positive or negative. In a positive feedback mechanism, the feedback gives a positive signal that accelerates the response whereas in a negative feedback mechanism, the feedback gives a negative signal that reduces the response.
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Chapter 38 Solutions
Biology: The Dynamic Science (MindTap Course List)
Ch. 38.1 - Prob. 1SBCh. 38.1 - Prob. 2SBCh. 38.2 - Prob. 1SBCh. 38.2 - What are the six major types of connective tissue...Ch. 38.2 - Prob. 3SBCh. 38.3 - Prob. 1SBCh. 38.4 - Prob. 1SBCh. 38 - Which tissue type consisting of sheetlike layers...Ch. 38 - Which of the following is a constant source of...Ch. 38 - A flexible, rubbery protein in connective tissue...
Ch. 38 - Prob. 4TYKCh. 38 - Prob. 5TYKCh. 38 - Lifting weights will most increase the size of:...Ch. 38 - Which muscle types appear striated under a...Ch. 38 - Prob. 8TYKCh. 38 - Prob. 9TYKCh. 38 - Prob. 10TYKCh. 38 - Prob. 11TYKCh. 38 - Prob. 12TYKCh. 38 - Discuss Concepts Near the time of childbirth,...Ch. 38 - Prob. 14TYKCh. 38 - 15. What effect do you think a program of lifting...Ch. 38 - The regulation of temperature in mammals and birds...Ch. 38 - Prob. 17TYKCh. 38 - Prob. 1ITD
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- Give an example of a feedback mechanism in the human body. Explain your example briefly. Make sure to identify the type of feedback (negative or positive), the receptor, the control center and the effector.arrow_forwardWhich one of the following statement is correct for positive feedback? Select one: of O a. A positive feedback system is stable over time, maintaining a steady state. O b. A positive feedback loop is a control system that acts to maintain the level of some variation within a given estion 60 range following a disturbance. O c. Step changes in a controlled variable will return the system to its original state using positive feedback. O d. Positive feedback oCcurs when a system moves from one set point to another. One type of positive feedback moves the control parameter to a value outside that normally maintained by negative feedback. Finish attempt . us page Show all aeens.Gam..mkv E The Queens.Gam..mkv EN E ) ll 03:31 7400 lenovo Insert Home Pause PrtSc ScrLkarrow_forwardPositive-feedback control systems: O a. do not exist in human systems. O b.ignore a change. O c. accelerate a change. O d. have no effect on the deviation from set point.arrow_forward
- In a positive-feedback system the hormone A increases the amount of protein X. Which of the following statements is correct? Group of answer choices a decrease in X always causes a decrease in A, which causes an increase in X. a decrease in A always produces an increase in X, which results in an increase in A. an increase in A always produces an increase in X, which results in an increase in A. an increase in X always produces a decrease in A, which results in a decrease in X.arrow_forwardDefine homeostasis. What happens when homeostasis fails? List the three basic components of a control system and give an example. Describe the components of a reflex pathway. Contrast the response loop and the feedback loop. Explain the relationship between a regulated physiological variable and its setpoint. Is the physiological variable exactly at its setpoint? Compare and contrast negative and positive feedback. Give a biological example of each. Is the setpoint constant or can it change over time? If setpoints can change over time, what is this called? Chapter 2:arrow_forwardWhich of the following can serve as an "effector" in physiological feedback loops in animals? Group of answer choices a gland brain spinal cord olfactory receptor (smell receptor)arrow_forward
- Positive-feedback control systems: O a. do not exist in human systems. O b.ignore a change. Oc. accelerate a change. O d.have no effect on the deviation from set point.arrow_forwardexplain in in a great detail the positive feedback loop and negative feedback loop in this picturearrow_forwardExplain why stabilizing mechanisms are called negative feedback.arrow_forward
- Explain the importance of regulatory mechanisms in living things. Distinguish between positive and negative feedback.arrow_forward1.What are the Two types of feedback loops? Illustrate and explain briefly. 2. How does homeostasis affect the following? a. Human Body b. Environment 3. Complete the table belowarrow_forwardDraw a row diagram showing the relationships among the components of a negative-feedback control system.arrow_forward
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