Fuel used by cells in cellular respiration to get energy is ________ ?
Correct answer: C. Glucose
- A. polysaccharides
- B. Polypeptides
- C. Glucose
- D. Sugar
Explanation
Glucose is the usual respiratory substrate because its oxidation in cellular respiration releases energy that is captured as ATP. Students may choose sugar, but sugar is a broad term and may include many carbohydrates, whereas glucose is the specific molecule normally meant here.
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