Glycolysis (Chapter 16)

Question 1

Function of Hexokinase

Answer 1

To phosphorylate glucose into glucose 6-phosphate

Question 2

Function of phosphoglucose isomerase

Answer 2

To convert glucose 6-phosphate into fructose 6-phosphate

Question 3

Function of phosphofructokinase

Answer 3

To phosphorylate fructose 6-phosphate into fructose 1,6-bisphosphate

Question 4

Function of aldolase

Answer 4

To cleave fructose 1,6-bisphosphate into glyceraldehyde 3-phosphate and dihydroxyacetone phosphate

Question 5

Function of triose phosphate isomerase

Answer 5

To convert dyhydroxyacetone phosphate into glyceraldehyde 3-phosphate

Question 6

Function of glyceraldehyde 3-phosphate dehydrogenase

Answer 6

To phosphorylate glyceraldehyde 3-phosphate into 1,3 bisphosphoglycerate (and convert NAD+ into NADH?)

Question 7

Function of phosphoglycerate kinase

Answer 7

To dephosphorylate 1,3-bisphosphoglycerate into 3-phosphoglycerate

Question 8

Function of phosphoglycerate mutase

Answer 8

Converts 3-phosphoglycerate into 2-phosphoglycerate mutase

Question 9

Function of enolase

Answer 9

To dehydrate (remove an H2O molecule from) 2-phosphoglycerate to change it into phosphoenolpyruvate

Question 10

Function of pyruvate kinase

Answer 10

To dephosphorylate phopsoenolpyruvate into pyruvate

Question 11

Where is GLUT2 found?

Answer 11

Liver and pancreatic beta cells

Question 12

Where is GLUT4 found?

Answer 12

Muscle and fat cells

Question 13

What degrades lactose?

Answer 13

Lactase (b-galactosidase) to galactose and glucose

Question 14

How is sucrose degraded, and to what?

Answer 14

Sucrose (invertase) converted to glucose and fructose

Question 15

How is maltose degraded?

Answer 15

Malatase, to two glucose