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8 November, 18:19

What is the source of energy of all cellular activities in living organisms?

A.) ATP

B.) lactic acid

C.) pyruvic acid

D.) glucose

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Answers (1)
  1. 8 November, 18:39
    0
    Cells get energy by breaking down food molecules to release the stored chemical energy by a process called 'cellular respiration'.

    During the process Oxygen is used to oxidize food, that oxidized food is known as glucose.

    D.) glucose
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