In a Positive-Feedback System in Which Hormone a Alters the Amount

question 16

Multiple Choice

In a positive-feedback system in which hormone A alters the amount of protein X

• A)an increase in A always produces an increase in X.
• B)an increase in X always produces a decrease in A.
• C)a decrease in A always produces an increase in X.
• D)a decrease in X always causes a decrease in A.
• E)it is impossible to predict how A and X affect each other.

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Definitions:

Heat Loss

The transfer of body heat to the environment, through various mechanisms such as radiation, convection, conduction, and evaporation.

Aerobic Respiration

A process of producing cellular energy involving oxygen. Cells break down food into water and carbon dioxide and release energy.

Anaerobic Respiration

A process by which cells produce energy in the absence of oxygen, typically resulting in the by-product of lactic acid or ethanol.

ATPs

ATPs are molecules known as adenosine triphosphate, which store and provide energy for many biochemical cellular processes through the release of a phosphate group.