Question

How many glucose molecules are required for the formation of 52 pyruvic acid molecules at the end of glycolysis?

• A. 52
• B. 46
• C. 32
• D. 26

Answer 1

The correct option is D 26

• The anaerobic breakdown of the glucose molecule in the cytoplasm of the cell is termed as glycolysis.
• In glycolysis, one molecule of glucose is converted to 2 molecules of pyruvic acid.
• Hence 26 molecules of glucose form 52 molecules of pyruvic acid.
• The pyruvic acid thus formed enters the Krebs cycle in the mitochondria and is used for the production of ATP molecules.
  Thus the correct answer is option D.