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But isn’t this at a lower level of
organization than the systems we usually refer to as “control systems”?
I would say end-product inhibition is negative feedback, but it isn’t an
example of a “control system” because it is happening at the
molecular rather than cellular level. What do others think? Margaret W. From: HAPS-L-owner@xxxxxxxxxxx [mailto:HAPS-L-owner@xxxxxxxxxxx] On Behalf Of James S. Miller Biochemistry is full of metabolic pathways where the
end product, or even sometimes intermediates, inhibits the first or second
enzyme in the pathway. This was always considered to be negative feedback
in every text I've ever seen. So, if I understand you correctly, the
answer is yes. It's a negative feedback homeostatic mechanism. On a recent
essay exam I asked my students to give me an example of negative
feedback. Most used |