Question

The enzymes hexokinase which catalyses glucose
to glucose-6-phosphate in glycolysis is inhibited
by glucose-6-phosphate. This is an example of
(a) competitive inhibition
(b) non-competitive inhibition
(c) feedback allosteric inhibition
(d) positive feedback.

Answer 1

Answer:

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Answer 2

The enzyme Hexokinase which catalyses glucose to glucose-6-phosphate in glycolysis is inhibited by glucose -6-phosphate. This is an example of (c) Feedback allosteric inhibition.

• Feedback allosteric inhibition mechanism allows cells to regulate the accurate amount of an enzyme's end product is produced.
• Glycolysis is a cyclic pathway which breakdowns the molecule of glucose into Pyruvate.
• 1 molecule of glucose break down into 2 molecules of pyruvate.
• The glycolysis cyclic pathway have three phase:

1. Energy utilizing Phase .
2. Splitting Phase.
3. Energy formation Phase.