Question

Which of the following enzymes are located in the cytoplasm?
a. Enzymes of glycolysis
b. Enzymes of hexose's monophosphate shunt
c. Enzymes of oxidative phosphorylation
Select the correct answer using the codes given.

• A. $1,2$ and $3$
• B. $1$ and $3$
• C. $2$ and $3$
• D. $1$ and $2$

Answer 1

The correct option is D $1$ and $2$

If the enzymes that were needed for glycolysis were not present in the cytosol,then it would not have been take place in the cytoplasm.The mitochondria does not contain the enzymes inside it to perform glycolysis nor does it sufficiently have the membrane transport protein to take glucose inside.So enzymes that are associated for the process of glycolysis appears in the cytoplasm.

The hexose monophosphate shunt is also called pentose phosphate pathway.It occurs in cytoplasm and is a major source of NADPH and 5-carbon sugars.

Enzymes that helps to catalyze oxidative phosphorylation are embedded in the inner mitochondrial membrane. The events of citric acid cycle and oxidative phosphorylation take place in matrix.

So,the correct option is (D).