3.2k views
0 votes
g Catalyzes a substrate level phosphorylation - breaks down sucrose to glucose and fructose - is a type of isomerase - removes one glucose residue from glycogen a. phosphorylase b. sucrase c. phosphohexose isomerase (also called glucose-6-phosphate isomerase) d. pyruvate kinas

1 Answer

3 votes

Answer:

A phosphorylase removes one glucose residue from glycogen.

Sucrase breaks down sucrose to glucose and fructose.

Phosphohexose isomerase is a type of isomerase.

Pyruvate kinase catalyzes substrate-level phosphorylation.

Step-by-step explanation:

A phosphorylase removes one glucose residue from glycogen.

The breakdown of glycogen requires a glycogen phosphorylase. It removes a glucose residue from glycogen in the form of glucose-1-phosphate.

Sucrase breaks down sucrose to glucose and fructose.

To metabolize a sugar different from glucose, an organism first has to transform it into glucose so it can then enter the glycolysis. Sucrose is a disaccharide formed by glucose and fructose bonded by an α-1,2 bond. Sucrase breaks down sucrose to glucose and fructose.

Phosphohexose isomerase is a type of isomerase.

It transforms glucose-6-phosphate into fructose-6-phosphate. This is the second step in glycolysis or the Embden-Meyerhof-Parnas pathway.

Pyruvate kinase catalyzes substrate-level phosphorylation.

It transforms phosphoenolpyruvate to pyruvate, releasing in the process an ATP molecule. This is the final step in the Embden-Meyerhof-Parnas pathway.

User Kaye
by
5.4k points