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MCQ practice · SSC Biology Board questions · Chapter 4: Bioenergetics

Barishal Board 2023

How much energy is produced from 1 molecule of glucose in aerobic respiration?

Think it through first, then pick an option.

  1. a 53 k Cal/Mole
  2. b 56 k Cal/Mole
  3. c 683 k Cal/Mole
  4. d 686 k Cal/Mole
Answer and explanation

Correct answer: d 686 k Cal/Mole

Aerobic respiration gives 686 kcal from one mole of glucose.

Why the other options are wrong

  • a 53 k Cal/Mole: 53 k Cal/Mole is not a book value; one glucose gives 686 k Cal/Mole in aerobic respiration.
  • b 56 k Cal/Mole: 56 kcal/mol is the energy of anaerobic respiration, not aerobic.
  • c 683 k Cal/Mole: 683 is not in the book; it is close to 686 but wrong.