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Home Q & A Board Biology-Related Homework Help Biochemistry
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Rjune1 Rjune1
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11 years ago
The process is easy to understand but why negative and not positive ? What I mean is say your blood sugar level is above average, this will trigger realease of GHRH as if the body was saying YES, I need this hormone... as opposed to NO, I need this hormone ? Get my drift ?
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#1
11 years ago
Negative Feedback means that the lowering of one substance will cause the elevation of another; or the elevation of one substance will cause the lowering of another.

It's like ACTH. Increased ACTH caused increased aldosterone, Now, if aldosterone increases, this will cause the levels of ACTH to decrease. This is called Negative Feedback. But if the increase in aldosterone cause the levels of ACTH to increase (which doesn't happen in life), then this is called Positive Feedback.

Hope you got it.
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