Respiration in Plants · Question 12

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.

Which of these statements is incorrect?

1. Glycolysis operates as long as it is supplied with NAD that can pick up hydrogen atoms.
2. Enzymes of TCA cycle are present in mitochondrial matrix.
3. Oxidative phosphorylation takes place in outer mitochondrial membrane.
4. Glycolysis occurs in cytosol.

Which statement is wrong for Krebs' cycle?

1. There is one point in the cycle where FAD+ is reduced to FADH2.
2. During conversion of succinyl CoA to succinic acid, a molecule of GTP is synthesised.
3. The cycle starts with condensation of acetyl group (acetyl CoA) with pyruvic acid to yield citric acid.
4. There are three points in the cycle where NAD+ is reduced to NADH + H+.