Answered: a physiologist, which of the following…

Human Physiology: From Cells to Systems (MindTap Course List)

9th Edition

ISBN:9781285866932

Author:Lauralee Sherwood

Publisher:Lauralee Sherwood

Chapter3: The Plasma Membrane And Membrane Potential

Section: Chapter Questions

Problem 7UC: Describe the contribution of each of the following to establishing and maintaining membrane...

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Question

1) As a physiologist, which of the following terms should you immediately associate with negative feedback regulation?

Answer choices

Constancy

Relative constancy

Relative constancy in interstitial fluid

Relative constancy in intracellular fluid

2) Which of the following is true about physiological set-points?

Answer choices

They act as the integrating center in a negative feedback arc

They represent the internal environment

They are determined by the actions of the receptors and integrating centers

They are constant

They act as the effector in a negative feedback arc

3) What is the general purpose of negative feedback mechanisms?

Answer choice

a. to maintain a constant internal environment

b. To anticipate changes in the environment

c. To return a variable to its set-point

d. To bring about the rapid change of a variable

e. To detect changes in the external environment

Expert Solution

Step 1

Homeostasis is the process in which the body maintains a near-constant internal environment. This is not the same as keeping the body in a fixed and unaltered state, for example when we exercise, it is important that our heart rate increases. negative feedback loops include homeostatic systems, like Thermoregulation when body temperature changes, mechanisms are induced to restore normal levels; Blood sugar regulation when insulin lowers blood glucose when levels are high ; glucagon raises blood glucose when levels are low.

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a physiologist, which of the following terms should you immediately associate with negative feedback regulation? Answer choices Constancy Relative constancy Relative constancy in interstitial fluid Relative constancy in intracellular fluid