First slide

Aerobic Respiration

Question

Which of these statements is incorrect?

Easy

A

Enzymes of TCA cycle are present in mitochondrial matrix.
B

Glycolysis occurs in cytosol.
C

Glycolysis operates as long as it is supplied with NAD that can pick up hydrogen atoms.
D

Oxidative phosphorylation takes place in outer mitochondrial membrane.

Solution

Oxidative phosphorylation takes place in inner mitochondrial membrane.
Enzymes of TCA cycle are present in mitochondrial matrix except for succinate dehydrogenase that is attached to the inner mitochondrial membrane.
Glycolysis occurs in cytosol. It is a common step of respiration both in case of aerobic and anaerbic respiration.
Glycolysis operates as long as it is supplied with NAD that can pick up hydrogen atoms. If NAD+ is not avaiable glycolysis ceases.

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