mitochondria in heart muscles are nearly_____________?
Correct answer: C. 350
- A. 400
- B. 375
- C. 350
- D. 325
Explanation
Heart muscle cells require continuous ATP for contraction and therefore contain many mitochondria, approximately 350 in the stated textbook estimate. The likely distractor is 375, which reflects the same general idea but is not the expected approximate value.
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