Fill in the blanks with the following terms:

Lactate NAD+ fermentation
NADH aerobic anaerobic acetyl CoA


When oxygen is available during glycolysis, the three-carbonpyruvate may be oxidized to form:

(1) ___________________ + CO2, The coenzyme (2) _________________is reduced to (3) ___________.

Under (4) _______________ conditions, pyruvate is reduced to (5)_________________. In yeast, pyruvate forms ethanol in a processknown as (6) __________________.

Associate each of the following descriptions with pathways inglycogen metabolism:
a. glycogenesis b. glycogenolysis
1. _____ breakdown of glycogen to glucose 2._____ activated byglucagon
3. _____ starting material is glucose-6-phosphate 4._____ synthesisof glycogen from glucose
5. _____ activated by insulin 6._____ UDP activates glucose


 
Gluconeogenesis: Glucose Synthesis
Associate each of the following descriptions:
a) gluconeogenesis b) pyruvate c) pyruvate kinase
d) pyruvate carboxylase e) Cori cycle

1. _____ an enzyme in glycolysis that cannot be used ingluconeogenesis

2. _____ a typical non-carbohydrate source of carbon atoms forglucose synthesis.

3. _____ a process whereby lactate produced in muscle is used forglucose synthesis in the liver and used again by the muscle.

4. _____ the metabolic pathway that converts non-carbohydratesources to glucose.

5. _____ an enzyme used in gluconeogenesis that is not used inglycolysis.

6. _____ a metabolic pathway that is activated when glycogenreserves are depleted.

Match each of the following with the correct metabolicpathway:
A. glycolysis B. glycogenolysis C. gluconeogenesis
D. glycogenesis E. fermentation

1. _____ conversion of pyruvate to alcohol
2. _____ breakdown of glucose to pyruvate
3. _____ formation of glycogen
4. _____ synthesis of glucose
5. _____ breakdown of glycogen to glucose