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Question

In prokaryotes, mitochondria are absent. Krebs cycle occurs in

A
Cytoplasm
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B
Nucleoid
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C
Ribosome
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D
Plasma membrane
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Solution

The correct option is D Plasma membrane
A prokaryotic cell like bacteria is typically devoid of membrane bound cell organelles. In such cells, biochemical activities like production of energy through Krebs cycle occurs on mesosomes. Mesosomes are complex infoldings of bacterial plasma membrane which increase biosynthetic area in a bacterial cell which is otherwise devoid of cell organelles.
Thus, the correct answer is Plasma membrane.

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