___________ is the potential surce of chemical energy for cellular activities?
Correct answer: A. C-H bond
- A. C-H bond
- B. C-O bond
- C. C-N bond
- D. P-O-C bond
Explanation
C-H bonds in organic food molecules contain potential chemical energy, which is released stepwise during cellular respiration and transferred to ATP. Students may choose a P-O-C bond because ATP contains phosphate bonds, but the question is referring to the energy stored in food molecules rather than ATP.
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