When heart muscles cells are deprived of oxygen, the heart still pumps for some time. What must the heart cells be able to do?.

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25-10-2022
Biology

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When heart muscles cells are deprived of oxygen, the heart still pumps for some time. What must the heart cells be able to do?.

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contexto1212 contexto1212 · Answer 1 · 2022-11-03T04:49:27-04:00

When heart muscle cells are deprived of oxygen, the heart still pumps for some time. The heart must derive sufficient energy from fermentation.

Heart muscle cells (cardiac myocytes) in the ischemic region begin to use glycolysis to generate energy anaerobically (without oxygen) when oxygen levels drop. Glycolysis, or fermentation, is an ancient method for producing energy in which glucose and glycogen are broken down enzymatically in stages to produce lactic acid as the final product. For every mole of glucose utilized, two moles of ATP and two moles of lactic acid are produced. In the ischemic myocardium, the glycolytic ATP helps maintain life, but there is no blood flow to transport the excess lactic acid to the liver, where it would be further metabolized under normal conditions.

(complete question)

When heart muscles cells are deprived of oxygen, the heart still pumps for some time. What must the heart cells be able to do'?

a. remove oxygen from lactate

b. transform lactate back to pyruvate

c. derive sufficient energy from fermentation

d. remove lactate from the blood

e. continue aerobic metabolism when skeletal muscle cannot

know more about Glycolysis here: https://brainly.com/question/1966268

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