at-the-onset-of-a-very-intense-sprint-oxygen-delivery-to-muscle-is-limited-what-

Question

At the onset of a very intense sprint, oxygen delivery to muscle is limited. What immediate metabolic fate will pyruvate most likely undergo in the working muscle?

Accepted Answer

Be converted to lactate to regenerate NAD+ allowing glycolysis to continue and provide ATP anaerobically.

Answer

Be transported directly into mitochondria and fully oxidized to CO2 and water via the citric acid cycle despite the oxygen limitation.

Answer

Spontaneously form creatine phosphate which is then exported to the bloodstream to fuel other tissues.

Answer

Be polymerized into glycogen in the cytosol to store energy for the next sprint interval.