Question

Describe how the lactic acid produced in muscle cells enters the blood.

Answer 1

Answer:

Explanation:INVESTIGATIONS into the chemical changes connected with muscular

contraction have been mainly carried out on the muscles of cold-blooded

animals. The theories constructed from the results of these researches

have been usefully employed in application to the much more difficult

problems which concern the changes associated with muscular con-

traction in mammals. However fundamental these results may be, we

cannot reasonably expect that the changes which occur in isolated cold-

blooded muscles in strange environments can be transferred without any

modifications to the consideration of intact, innervated warm-blooded

muscles, provided with a circulation, and forming part of a complex

organism.

Answer 2

Fast-twitch muscle also uses glycolysis to produce energy, but it skips harvesting energy from pyruvate, a process that takes oxygen. Instead, pyruvate gets converted into a waste product, lactic acid, and released into the bloodstream.

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