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MHT CET 202622 AprilMorning Shift
Exam
MHT CET
Year
2026
Date
22 April
Shift
Morning Shift
Subject
Biology
Chapter
Respiration in Plants

MHT CET 2026 · 22 April · Morning Shift · Biology · Respiration in Plants

Given below are two statements: Statement (I): The rate of...

Given below are two statements:
Statement (I): The rate of glycolysis is controlled by ATP consumption, NAD++H+NAD^++H^+ regeneration and enzymes like hexokinase, pyruvate kinase etc.
Statement (II): It is also controlled by hormones like glucagon, epinephrine and insulin.
In light of the above statements, choose the most appropriate answer from the options given below.

Options

  1. ABoth Statement (I) and Statement (II) are correct.
  2. BBoth Statement (I) and Statement (II) are incorrect.
  3. CStatement (I) is correct but Statement (II) is incorrect.
  4. DStatement (I) is incorrect but Statement (II) is correct.

Correct answer

A. Both Statement (I) and Statement (II) are correct.

Step-by-step solution

Statement (I) is correct because the rate of glycolysis is fundamentally controlled by the cellular energy charge, including ATP consumption and the continuous need for NAD+NAD^+ regeneration from NADH+H+NADH + H^+. The process is strictly regulated by key allosteric enzymes such as hexokinase, phosphofructokinase, and pyruvate kinase.

Statement (II) is correct because glycolysis is also subject to hormonal regulation to maintain systemic blood glucose homeostasis. Hormones like insulin upregulate glycolysis by promoting the activation of regulatory enzymes, whereas glucagon and epinephrine generally inhibit glycolysis in the liver via phosphorylation cascades.

Therefore, both Statement (I) and Statement (II) are correct.

Answer: Both Statement (I) and Statement (II) are correct.
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