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.
Harbut, Chester wrote:
On
a recent
essay exam I asked my students to give me an example of negative
feedback. Most used
parameters such as glucose concentration, temperature, even calcium
concentrtion. Two students however
used "end-product inhibition" of enzymes (with specific
examples). I''m just curious, do most of you
consider this negative feedback in the classical sense?