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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Explain the importance of regulatory mechanisms in living things. Distinguish between positive and negative feedback.
Draw a diagram that shows how the parts of a negative feedback loop interact. Include set-point, stimulus, sensor, control center, effector, and response in your drawing.
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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 two examples of feedback mechanisms in the human body. identify the type of feedback (negative or positive), the receptor, the control center and effector.arrow_forward1. What general type of feedback loop is this? Option a. This is actually no feedback here Option b. Negative feedback loop Option c. Neutral feedback loop Option d. Positive feedback loop Option e. Anticipatory feedback loop 2. In the feedback system shown above, what determines the set point? Option a. The salt content of the blood Option b. The amount of pressure on the wall of the heart Option c. The set point is directly determined by the amount of urine in the bladder Option d. There is no set point because it is positive feedback loop Option e. The set point is determined the amount of natriuretic peptide in the blood Option f. The kidneys 3. How is increased urine production likely to reduce blood volume Option a. Urine production reduces the number of blood cells produced by the bone marrow Option b. Increased urine production remove water from the blood, reducing blood volume Option c. Increased urine production induces a reduction in water absorb from the gut Option d.…arrow_forwardWhich of the following is not true for f negative feedback loops? A. In a negative loop, the response to the signal or stimulus decreases the original signal or stimulus. B. Negative feedback loops maintain homeostasis. C. Negative feedback loops are temporary. D. There are many more instances of negative feedback loops in the human body than positive feedback loops.arrow_forward
- Choose a negative feedback loop and state the 5 components. Explain how positive feedback is different from negative feedback and give an example of positive feedback.arrow_forwardWhen you step outside in the cold, your body temperature decreases; which causes shivering or contractions of your muscles. In this example, the shivering or contracting of the muscles, is what part of the feedback loop?arrow_forwardExplain the concept of a homeostatic loop; what is the difference between positive and negative feedback?arrow_forward
- Research the behaviours of a specific ectothermic animal. How do specific behaviours allow for the animal to control its body temperature in cool and hot conditions? How do specific parts of the animal’s anatomy help with thermoregulation? Use a feedback diagram to show how this animal uses thermoregulation in one of these conditions: ectotherm in cool conditions ectotherm in hot conditions Be sure to use ⊕ and ⊝ symbols in the feedback diagram to add important details.arrow_forwardNegative feedback systems keep regulated variables within a normal range by ______________ any upward or downward shift in that variable, i.e. it means an _______________ response to a stimulus.arrow_forwardBelow are three statements - two of which are truths and one is a lie. Which of the following statements is a lie? Select one: a.Some organisms have the function to be responsive only, some have the ability for movement only, but organisms are rarely found to have both functionalities. b.Organisms that are responsive yet are not capable of moving become more prone to dangers, injuries, and eventually lead to its death. c.If an organism has no ability to be responsive to changes in both internal and external environment despite being able to move, then the organism is most likely to be susceptible to danger or even lead to its own death.arrow_forward
- Which feedback loop often maintains homeostasis in the human body? a. neutral feedback loop b. solar feedback loop c.positive feedback loop d. negative feedback looparrow_forwardThe role of insulin is to signal the cells to uptake glucose from the blood. Is this a positive or negative feedback loop? Explain what would happen if the other type of feedback loop were to occur.arrow_forwardWhat does negative feedback do? a. It establishes a set point. b. It changes the set point. c. It eliminates the set point. d. It reduces discrepancies from a set point.arrow_forward
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