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HMS, BM EQ-Bank 149 MC

Which statement best describes why fatty acids cannot be the primary fuel source for high-intensity exercise?

  1. Fatty acids require too much oxygen for breakdown
  2. Fatty acids are not stored in muscle tissue
  3. Fatty acids produce less ATP than glucose
  4. Fatty acids are too complex to break down quickly
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\(A\)

Show Worked Solution

Consider Option A:  Fatty acids require too much oxygen for breakdown

  • Fatty acid metabolism requires significant oxygen

Other Options:

  • B is incorrect: Fatty acids are stored as intramuscular triglycerides
  • C is incorrect: Fatty acids actually produce more ATP than glucose
  • D is incorrect: Complexity isn’t the primary limitation

\(\Rightarrow A\)