ENDOCRINE SYSTEM
ENDOCRINE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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In a positive-feedback system where hormone A alters the amount of protein X ____
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an increase in A always produces an increase in X.
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an increase in X always produces a decrease in A.
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a decrease in A always produces an increase in X.
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a decrease in X always causes a decrease in A.
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Explanation:
Detailed explanation-1: -Glucagon increases blood glucose levels; accordingly, its main actions generally are opposite to those of insulin. For example, glucagon increases glycogen breakdown and gluconeogenesis in the liver as well as the breakdown of lipids and proteins.
Detailed explanation-2: -A positive feedback loop in the endocrine system is when release of a hormone initiates actions that lead to an additional release of that hormone. Unlike a negative feedback loop, a positive one is not looking to reach homeostasis (stability).
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