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Biology · Topic

Respiration, aerobic and anaerobic

Word equations must balance in words: glucose to lactic acid, not "energy is made".

1 original question in the bank, worth 2 marks · still building (1 more to reach the floor)

Drill this topic All respiration, aerobic and anaerobic questions

The questions, with the examiner reasoning

Write2 marksBGCSE

Write the word equation for anaerobic respiration in human muscle.

Show the mark scheme and the examiner note

Answer: glucose → lactic acid (energy released)

  1. Reactant: glucose
  2. Product: lactic acid, with energy released

Examiner technique: "Energy is made" is not acceptable — energy is released, not manufactured. Small wording, real mark.