Glycolysis

Question 1

Step 1

Answer 1

Glucose - Glucose-6-Phosphate

ATP - ADP + H+

Hexokinase is the enzyme

inhibited by: glucose-6-phosphate, glucagon

Question 2

Step 2

Answer 2

Glucose-6-Phospate - Fructose-6-Phosphate

enzyme is glucose-6-phosphate isomerase

Question 3

Step 3

Answer 3

Fructose-6-Phosphate - Fructose 1,6 bisphosphate

ATP - ADP + H+

This step is the first committed step

enzyme is phosphofructosekinase-1

inhibited by glucose, phosphoenol pyruvate, and ATP, citrate

activated by ADP and AMP, fructose-2,6-bisphosphate

Question 4

Step 4

Answer 4

Fructose-1,6-bisphosphate - Dihydroxyacetone phosphate + glyceraldehyde-3-phosphate

enzyme is aldolase

Question 5

Step 5

Answer 5

Dihydroxyacetone phosphate - Glyceraldehyde-3-phosphate

enzyme is triose phosphate isomerase

Question 6

Step 6

Answer 6

Glyceraldehyde-3-phosphate - 1,3-bisphosphoglycerate

NAD+ +Pi - NADH + H+

enzyme is glyceraldehyde-3-phosphate dehydrogenase

the first step of the payoff phase

Question 7

Step 7

Answer 7

1,3-bisphosphoglycerate - 3-phosphoglycerate

ADP - ATP

enzyme is phosphoglycerate kinase

Question 8

Step 8

Answer 8

3-phosphoglycerate - 2-phosphoglycerate

enzyme is phosphoglycerate mutase

proceeds through 2,3-bisphosphoglycerate intermediate

Question 9

Step 9

Answer 9

2-phosphoglycerate - phosphoenol pyruvate

enzyme is enolase

Question 10

Step 10

Answer 10

Phosphoenolpyruvate - pyruvate

ADP + H+ - ATP

Enzyme is pyruvate kinase

activated by fructose-1,6-bisphosphate

inhibited by ATP and glucagon