Explain the three pathways of breakdown of glucose in living organisms.

  • A
    Breakdown into ethanol,$CO_2$ and energy (Anaerobic respiration in yeast).
  • B
    Breakdown into lactic acid and energy (Anaerobic respiration in muscle cells).
  • C
    Breakdown into $CO_2, H_2O$ and energy (Aerobic respiration in mitochondria).
  • D
    All of the above.

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