A. Increased rate of the citric acid cycle

D. Citric acid cycle

E. b oxidation of fatty acids

F. Amino acid degradation

G. Oxidative phosphorylation

 

2. Determine if each metabolic branch point is correctly matched with its characteristics. Enter “yes” if the match is correct, and “no” if the match is incorrect.

_____ Glucose 6-phosphate and Entry point for metabolism of carbon skeletons of aspartate and asparagine

_____ Pyruvate and Links anaerobic and aerobic metabolism

_____ Acetyl CoA and Common product of carbohydrate, fat, and some amino acids

_____ Oxaloacetate and Carbohydrate metabolism

 

Answer:

The suggested answer is no, yes, yes, no

 

3. The energy needs of the brain are:

A. Vary according to glycogen storage levels

B. Are maintained by membrane potentials

C. Constant

D. Decline during sleep

 

4. The Cori cycle describes the release of lactate from active muscle into the bloodstream and its subsequent uptake by the liver. The lactate in the liver is then used for:

A. Glycogen synthesis

B. ATP phosphorylation

C. Phosphocreatine synthesis

D. Glucose synthesis

 

5. Under fasting conditions, b oxidation of fatty acids is the primary energy source. All of the following are characteristic of such conditions except:

A. Increased rate of the citric acid cycle

B. Bad breath

C. Increased gluconeogenesis

D. Glucose synthesis from amino acids

 

6. What do insulin, glucagon, and epinephrine have in common?

A. They increase blood glucose levels.