교과서 질문
Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
The effects of negative feedback loops are amplified to create an escalating response.
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1. Introduction to Anatomy & Physiology
Feedback Loops: Negative Feedback
Multiple Choice
Which of the following best describes negative feedback regulation?
A
A process that maintains a constant internal environment by ignoring external changes
B
A process in which a change in a variable triggers mechanisms that reverse the direction of that change
C
A process in which a change in a variable amplifies the direction of that change
D
A process that only occurs during disease states
검증된 단계별 안내1
Understand the concept of negative feedback regulation: Negative feedback is a homeostatic mechanism where a change in a physiological variable triggers a response that counteracts or reverses the initial change, helping to maintain stability in the internal environment.
Analyze the first option: 'A process that maintains a constant internal environment by ignoring external changes.' This is incorrect because negative feedback does not ignore external changes; instead, it actively responds to them to maintain homeostasis.
Analyze the second option: 'A process in which a change in a variable triggers mechanisms that reverse the direction of that change.' This is correct because it accurately describes how negative feedback works to restore balance by reversing the initial change.
Analyze the third option: 'A process in which a change in a variable amplifies the direction of that change.' This describes positive feedback, not negative feedback. Positive feedback amplifies changes rather than reversing them.
Analyze the fourth option: 'A process that only occurs during disease states.' This is incorrect because negative feedback is a normal physiological process that occurs continuously to maintain homeostasis, not just during disease states.
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