Respiration in Plants

What is the net gain of ATP when each molecule of glucose is converted to two molecules of pyruvic acid?

1. Four
2. Six
3. Two
4. Eight

What amount of energy is released from glucose during lactic acid fermentation?

1. Approximately 15%
2. More than 18%
3. About 10%
4. Less than 7%

The 5-C compound formed during TCA cycle is

1. Fumaric acid
2. α-ketoglutaric acid
3. Oxalosuccinic acid
4. Succinic acid

The number of time(s) decarboxylation of isocitrate occurs during single TCA cycle is

1. Four
2. One
3. Two
4. Three

Match List-I with List-II Choose the correct answer from the options given below.

1. (a)-(ii), (b)-(iv), (c)-(i), (d)-(iii)
2. (a)-(ii), (b)-(i), (c)-(iv), (d)-(iii)
3. (a)-(iv), (b)-(i), (c)-(ii), (d)-(iii)
4. (a)-(iii), (b)-(iv), (c)-(ii), (d)-(i)

Which of the following statements is incorrect?

1. Oxidation-reduction reactions produce proton gradient in respiration
2. During aerobic respiration, role of oxygen is limited to the terminal stage.
3. In ETC (Electron Transport Chain), one molecule of NADH + H+ gives rise to 2 ATP molecules, and one FADH2 gives rise to 3 ATP molecules
4. ATP is synthesized through complex V

The number of substrate level phosphorylations in one turn of citric acid cycle is

1. Zero
2. One
3. Three
4. Two

Conversion of glucose to glucose-6-phosphate, the first irreversible reaction of glycolysis, is catalyzed by

1. Enolase
2. Phosphofructokinase
3. Aldolase
4. Hexokinase

Respiratory Quotient (RQ) value of tripalmitin is :

1. 0.07
2. 0.09
3. 0.9
4. 0.7

What is the role of NAD+ in cellular respiration?

1. It is the final electron acceptor for anaerobic respiration.
2. It functions as an enzyme.
3. It functions as an electron carrier.
4. It is a nucleotide source for ATP synthesis.