Carbohydrate Metabolism I

Question 1

cytoplasmic pathway that converts glucose to two pyruvate molecules, releasing a modest amt of energy captured in two-substrate level phosphorylations and one oxidation reaction

Answer 1

glycolysis

Question 2

enzymes that control phosphorylation of glucose to glucose 6-p

Answer 2

Hexokinase

Glucokinase

Question 3

rate limiting enzyme and main control point in glycolysis
inhibited by ATP and Citrate
activated by AMP

Answer 3

phosphofructokinase-1 (PFK-1)

Question 4

catalyzes an oxidation and addition of inorganic phosphate to its substrate glyceraldehyde-3-phosphate

Answer 4

Glyceraldehyde-3-phosphate dehydrogenase

Question 5

transfers high energy phosphate from 1,3-bisphosphoglycerate to ADP

Answer 5

3-phosphoglycerate kinase

Question 6

ADP is directly phosphorylated to ATP using a high-energy intermediate

Answer 6

substrate-level phosphorylation

Question 7

catalyzes a substrate level phosphorylation of ADP using high energy substrate Phosphoenolpyruvate PEP

Answer 7

Pyruvate Kinase

Question 8

key fermentation enzyme which oxidizes NADH to NAD+, replenishing the oxidized coenzyme for glyceraldehyde-3-phosphate dehydrogenase

Answer 8

lactate dehydrogenase

Question 9

conversion of pyruvate ( from glycolysis ) when enters the mitochondria to acetyl-CoA

Answer 9

pyruvate dehydrogenase

Question 10

branched polymer of glucose, represents a storage form of glucose

Answer 10

Glycogen

Question 11

is the synthesis of glycogen granules

Answer 11

glycogenesis

Question 12

rate-limiting enzyme of glycogen synthesis and forms the alpha-1,4 glycosidic bond found in the linear glucose chains of the granule

Answer 12

Glycogen Synthase

Question 13

process of breaking down glycogen

Answer 13

glycogenolysis

Question 14

rate limiting enzyme of glycogenolysis

Answer 14

glycogen phosphorylase