BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
10th Edition
ISBN: 9781305967359
Author: STARR
Publisher: CENGAGE L
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Chapter 28, Problem 12SA
Summary Introduction
Introduction:
Feedback systems are part of control systems in the body. These are present in almost all living organisms. There are different types of feedback systems that are used to control a particular process or change taking place in the body. Depending on whether the control system increases or decreases an effect, feedback control systems can be classified as negative feedback and positive feedback control system.
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With negative feedback, detection of a change brings about a response that_____ the change. a. reverses c. has no effect on b. accelerates d. mimics
In negative feedback,a. a change causes responses that counteract the change.b. a response to a change damages the body.c. a change produces a response that enhances the change.d. a response to a change permanently alters the body.
In physiology positive feedback ______.
A
is beneficial whereas negative feedback is harmful
B
is used frequently as it returns the body to homeostatic conditions
C
rushes infrequent events such as childbirth and blood clotting to completion
D
increases body temperature whereas negative feedback always lowers it
Chapter 28 Solutions
BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
Ch. 28 - _______ tissues are sheetlike with one free...Ch. 28 - _________ allow cardiac muscle cells to contract...Ch. 28 - Glands are derived from ________ tissue. a....Ch. 28 - Most ________ have many collagen and elastin...Ch. 28 - ________ is mostly plasma. a. Adipose tissue c....Ch. 28 - Prob. 6SACh. 28 - Cells of ________ can shorten contract. a....Ch. 28 - Prob. 8SACh. 28 - ________ detects and integrates information about...Ch. 28 - Prob. 10SA
Ch. 28 - Prob. 11SACh. 28 - Prob. 12SACh. 28 - Prob. 13SACh. 28 - Prob. 14SACh. 28 - Match the terms with the most suitable...Ch. 28 - Many people oppose the use of animals for testing...Ch. 28 - Prob. 2CTCh. 28 - Each level of biological organization has emergent...Ch. 28 - The micrograph to the left shows cells from the...
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- Example of a negative feedback regulationarrow_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_forwardAn adenectomy is the surgical removal of a gland. ___________ ____________ ___________ __________arrow_forward
- Calcium plays a role in many processes in the body. Explain what it does in a neuron during signal transmission and why and how it is important in reproductionarrow_forward_____are nerves that relay signals to and from internal organs and to glands. In the nervous system, ______are neurons that are the most active at times of excitement or danger.arrow_forwardRegarding question "Which of the following is true of positive feedback?" the answers A. the change is opposite that of negative feedback and B. The change is amplified; how do these 2 answers differ from one another? Aren't they both true?arrow_forward
- What type of homeostatic mechanism detects the factor and produces an effector to induce the same effect by that factor? a. Negative Feedback Mechanism b. Positive Feedback Mechanismarrow_forwardSweating is an example of variable. It is also an example of negative feedback mechanism. a. Both statements are true b. Both statements are false c. First is true, Second is false d. First is false, Second is truearrow_forwardDifferent cell-types can use the same receptor-type to detect a common hormone, which leads to the abilitiy of that hormone to trigger multiple physiological responses. A. True B. Falsearrow_forward
- Which of the following is true of positive feedback? a. The change is opposite that of negative feedback b. The effector turns off the response c. The change is amplified What is the difference between the answers a & b?arrow_forwardThe change in an organism resulting due to stimulus called.arrow_forwardHormones have a key role in maintaining homeostasis, also, all glands work together to maintain homeostasis. Explain what is the role of hormones and glands in maintaining homeostasis.arrow_forward
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