Glycolysis: Pathway and Significance · NCERT Biology

The conversion of 3-phosphoglyceric acid (3-PGA) to 2-phosphoglyceric acid (2-PGA) is a/an:

  1. Oxidation
  2. Reduction
  3. Isomerization
  4. Decarboxylation
Show answer and explanation

Correct answer: Isomerization

The enzyme phosphoglyceromutase shifts the phosphate group from the 3rd carbon to the 2nd carbon. This is an isomerization reaction that rearranges the molecule without changing its chemical formula.

Difficulty: Medium Question 19 of 20

Practice all 20 Glycolysis: Pathway and Significance questions

Keep practicing

More Glycolysis: Pathway and Significance questions