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Which of the following is TRUE? Fatty acids released in response to increased levels of glucagon...

  1. Which of the following is TRUE?
    1. Fatty acids released in response to increased levels of glucagon can be used as an alternative fuel source for muscles.
    2. Cell membranes are very permeable to glucose, making it a good fuel source.
    3. The SYN stimulates glucose diffusion into muscle cells.
    4. Long exhaustive exercise causes reduced amino acid levels in the blood.
Science   Anatomy-And-Physiology   
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Answer #1

The statement "D" is correct i.e, Long exhaustive exercise causes reduced amino acid levels in the blood.

During exercise, amino acid oxidation and protein breakdown are enhanced while protein synthesis is suppressed. In response to exercise-induced stimulation, various changes in free amino acids occur in skeletal muscle to meet physiological demands.

Statement A is incorrect because fatty acids released in response to decreased levels of glucagon can be used as an alternative fuel source for muscles.

Statement B is incorrect because cell membrane is selectively permeable to glucose.

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