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Which of the ...

Question

Which of the following states the purpose of occurrence of Malate-aspartate shuttle?

A

It transports the electron for oxidative phosphorylation.

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B

It transports the NADH for oxidative phosphorylation.

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C

It transports the protons for glycolysis.

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D

None of these.

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Solution

The correct option is A It transports the electron for oxidative phosphorylation.
The main purpose of occurrence of malate-aspartate shuttle is to provide a mechanism to regulate glycolysis and lactate metabolism in the heart. It does so by transporting electron for oxidative phosphorylation from cytosol into mitochondria. Oxidative phosphorylation takes place in the inner mitochondrial membrane.
Thus, the correct answer is 'It transports the electron for oxidative phosphorylation.'

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