People who suffer from a heart attack often have an increased ratio of lactic acid to pyruvic acid in their hearts. What does this observation say about the availability of oxygen in the heart muscle cells of someone who has had a heart attack? How could you use this information to screen people who might be at risk for a heart attack?

Heart attack occurs due to anaerobic respiration.

Explanation:

This observation say about the availability of oxygen in the heart muscle cells of a person who has had a heart attack because due to unavailability of oxygen to the heart cells, anaerobic respiration occurs that produce lactic acid. If the oxygen is available to the heart cells, they produce pyruvate acid and no heart attack will occur to the person so people should anaerobic respiration in order to avoid heart attack.

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