Respiratory Balance Sheet

Q. How many ATP molecules could maximally be generated from one molecule of glucose, if the complete oxidation of one mole of glucose yields 686 kcal. The useful chemical energy available in the high energy phosphate bond of one mole of ATP is 12 kcal energy

1. Two
2. Thirty
3. Fifty seven
4. One

Q. Which of the following is correct regarding cyclic photophosphorylation?

1. It involves both PS-l and PS-ll
2. Both ATP and NADPH are formed
3. The electrons released from PS-I are again cycled back to PS-I
4. It requires an external electron donor

Q. The chemiosmotic theory is based on ____________.

1. accumulation of $N{a}^{+}$ ions
2. accumulation of $K^{+}$ ions
3. proton gradient
4. membrane potential

Q. Passage of two pairs of electrons from NADH molecules to oxygen will pump out

1. 2 ATP molecules
2. 3 ATP molecules
3. 4 ATP molecules
4. 6 ATP molecules

Q. The three boxes in this diagram represent the three major biosynthetic pathways in aerobic respiration. Arrows represent net reactants or products.

Arrows numbered 4, 8 and 12 all can be:

1. ATP
2. $H_{2}O$
3. $FA{D}^{+}$ or $FAD{H}_2$
4. NADH

Q.

If 5 molecules of glucose respired aerobically and another 5 molecules anaerobically, what is the total number of ATP and $C{O}_2$ molecules expected form these reactions?

1. 200 ATP and 60 $C{O}_2$

2. 140 ATP and 40 $C{O}_2$

3. 200 ATP and 40 $C{O}_2$

4. 190 ATP and 36 $C{O}_2$

Q. Passage of two pairs of electrons from NADH molecules to oxygen will pump out

1. 3 ATP molecules
2. 4 ATP molecules
3. 2 ATP molecules
4. 6 ATP molecules

Q.

In aerobic cellular respiration, which generates more ATP, substrate-level phosphorylation or chemiosmosis?

1. Substrate-level phosphorylation

2. Chemiosmosis

3. Both generate the same amount of ATP

4. Neither generates any ATP

Q. How many NAD molecules get reduced in complete oxidation of one glucose molecule?

1. 2
2. 5
3. 10
4. 12

Q. Number of ATP molecules synthesised through Substrate level phosphorylation during aerobic respiration of one glucose molecule is

1. 8
2. 6
3. 4
4. 2

Q. How many ATP molecules could maximally be generated from one molecule of glucose, if the complete oxidation of one mole of glucose yields 686 kcal. The useful chemical energy available in the high energy phosphate bond of one mole of ATP is 12 kcal energy

1. Two
2. Thirty
3. Fifty seven
4. One