10 reaction of glycolysis - online questions

Question 1

Rx1 of Glycolysis: Name type of reaction, name of starting and ending compound, name of enzyme. what is the delta G of Rx1 of glycolysis?

Answer 1

Phosphorylation transfer. Glucose to Glucose-6-Phosphate. Hexokinase. Delta G is -16.7 kj/mol.

Question 2

In Rx1 of glycolysis what are the bi-products?

Answer 2

ADP and H+

Question 3

Rx2 of Glycolysis: Name type of reaction, name of starting and ending compound, name of enzyme?

Answer 3

Isomerization.

Glucose-6-phosphate to Fructose-6-phosphate.

Enzyme is Phosphoglucose isomerase (PGI)

Question 4

What is the Delta G of Rx 2 of glycolysis? is it a Control point?

Answer 4

Delta G is 1.2 kj/mol. it is not a control point.

Question 5

in Rx3 of Glycolysis: Name type of reaction, name of starting and ending compound, name of enzyme?

Answer 5

Phosphoryl transfer.

Fructose-6-phosphate to Fructose 1, 6-bisphosphate.

enzyme is phosphofructokinase (PFK-1)

Question 6

What is a key feature that only belongs to Rx 3 of glycolysis?

Answer 6

it is the committed step for the entire pathway.

Question 7

In Rx3 of glycolysis what type of energy is used?

Answer 7

ATP

Question 8

what is the delta G in Rx3 of glycolysis?

Answer 8

Delta G is -14.2 kj/mol.

Question 9

Rx4 of Glycolysis: Name type of reaction, name of starting and ending compound, name of enzyme?

Answer 9

type of reaction is aldol cleavage,

Fructose-1, 6-bisphosphate to yield Glyceraldehyde-3-phosphate and Dihydroxyacetone phosphate.

enzyme is aldolase.

Question 10

what is the Delta G value of Rx4 of glycolysis?

Answer 10

Delta G is a positive 23.8 kj/mol.

Question 11

Rx5 of Glycolysis: Name type of reaction, name of starting and ending compound, name of enzyme?

Answer 11

Isomerization reaction.

Dihydroxyacetone phosphate to Glyceraldehyde phosphate.

Triose phosphate isomerase (TIM or TPI).