Respiratory Balance Sheet

Q. In aerobes, the number of $GTP$ and $FAD{H}_2$ generated from a molecule of acetyl CoA during Krebs cycle are in

1. 2 : 1 ratio
2. 1 : 4 ratio
3. 1 : 2 ratio
4. 1 : 1 ratio

Q.

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

1. both generate the same amount of ATP

2. neither generates any ATP

3. substrate-level phosphorylation

4. chemiosmosis

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 CO2

2. 140 ATP and 40 CO2

3. 200 ATP and 40 CO2

4. 190 ATP and 36 CO2

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 are produced by aerobic oxidation of one molecule of glucose?

1. 4
2. 2
3. 34
4. 38

Q. How many PGAL are produced by glycolysis of 3 molecules of glucose? How many ATP are released by respiration of these PGAL till formation of $C{O}_2$ and $H_{2}O$?

1. 4 PGAL-80 ATP
2. 6 PGAL-160 ATP
3. 6 PGAL-120 ATP
4. 4 PGAL-40 ATP

Q. How many ATP moleucles could maximally be generated from one molecule of glucose, if the complete oxidation of one mole of glucose to $C{O}_2$ and $H_{2}O$ yields 686 kcal and the useful chemical energy available in the high energy phosphate bond of one mole of ATP is 12 kcal?

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

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

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

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

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

Q. Oxidation of one molecule of $FAD{H}_2$ gives rise to ______ molecules of ATP.

1. 3
2. 8
3. 24
4. 2