Question

14. During starvation, the only tissue that completely oxidizes glucose is

a. The red blood cell

b. Brain

c. Liver

d. Skeletal muscle

Energy released from biological oxidation processes is...

1. Captured in ATP and other “high-energy” molecules
2. Lost as heat without formation of ATP
3. Lost in the urine as glucose
4. Both a and b
5. Both a and c

In the mitochondrial electron transport chain

1. Oxygen is the final electron acceptor
2. NADH is a major electron donor
3. Electron transport is coupled to ATP production
4. FADH₂ may donate electrons
5. Both a and b
6. All of the above

The maximum number of ATP equivalents that can be obtained by glycolysis of glucose by the muscle cell is

1. 2 per glucose molecule
2. 8 per glucose molecule
3. 30 per glucose molecule
4. 38 per glucose molecule

Energy released from biological oxidation processes is ...

1. Captured in ATP and other “high-energy” molecules
2. Lost as heat without formation of ATP
3. Lost in the urine as glucose
4. Both a and b
5. Both a and c

Answer 1

Answer

14) b) Brain

Explanation : Glucose is the only source of energy for the brain tissue as it is the only molecule that can pass through the blood brain barriers. Hence even in starvation, brain tissue can oxidized glucose.

15) D) both a and b

Explanation : energy released in the biological oxidation is converted into two form.

- ATP

- heat

16) F) all of the above

Explanation : NADH and FADH2 are the major electron donors of ETC. And ETC results in production of ATP.

17) a) 2 per glucose molecule

Explanation : glycolysis us the conversion of glucose into pyruvate. This reaction yields net 2 ATP per glucose molecule.

18) D) both a and b