Q.

Mature erythrocytes in humans cannot respire aerobically.  Which of the following is the most appropriate explanation for this feature?

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a

They lack mitochondria

b

They are circular and biconcave in shape

c

Oxygen is transported only through blood plasma but not through RBCs

d

They live only for 120 days

answer is A.

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Detailed Solution

Mature erythrocytes lack mitochondria and cannot perform aerobic respiration. They respire anaerobically and hence do not use up the oxygen which they transport to the tissues.

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