The enzyme hexokinase which catalysis glucose to a glucose-6-phosphate in glycolysis is inhibited by glucose-6-phosphate. This is an example of I. competitive inhibition II. non-competitive inhibition

Question

The enzyme hexokinase which catalysis glucose to a glucose-6-phosphate in glycolysis is inhibited by glucose-6-phosphate. This is an example of I. competitive inhibition II. non-competitive inhibition III. feedback allosteric inhibition Which of the above statements is/are correct?

TestHub · Accepted Answer

Hexokinase catalyses the phosphorylation of hexose in general and is found in all cells that metabolise glucose. It has low K m ​ (high affinity, strong bonding) with glucose in such a way that it is active at low glucose concentration. It shows allosteric feed beat inhibition by to product glucose-6-phosphate.

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