Free Respiration In Plants (Weekly Quiz: 1) NEET Biology Questions & Answers with Detailed Explanation & Full Review

Question-1

Which of the following processes make direct use of oxygen?

(a) Electron transport

(b) Glycolysis

(c) Fermentation

(d) Krebs citric acid cycle

Question-2

Which of the following conversions represents a reduction reaction?

(a) NADH + $H^{+} NAD^{+}$ + 2H

(b) Pyruvate → Acetyl CoA

(c) $C_{6}H_{12}O_{6} → 6CO_{2}$

(d) Acetaldehyde ($C_{2}H_{4}$O) → Ethanol ($C_{2}H_{6}$O)

Question-3

Oxidative phosphorylation is

(a) addition of phosphate group to ATP

(b) formation of ATP by transfer of phosphate group from a substrate to ADP

(c) oxidation of phosphate group in ATP

(d) formation of ATP by energy released from electrons removed during substrate oxidation

Question-4

One of the following is common to glycolysis as well as Krebs cycle in eukaryotes :

(a) Localization in mitochondria

(b) Substrate level phosphorylation

(c) Photophosphorylation

(d) Production of $FADH_2$

Question-5

For bacteria to continue growing rapidly when they are shifted from an environment containing $O_2$ to an anaerobic environment, they must

(a) increase the rate of glycolysis.

(b) produce more ATP per mole of glucose during glycolysis.

(c) produce ATP during oxidation of glucose.

(d) increase the rate of TCA cycle.

Question-6

Which of the following relation shows substrate level phosphorylation?

(a) Malic acid → oxaloacetic acid

(b) Citric acid → α-ketoglutaric acid

(c) α-ketoglutaric acid → Succinyl-CoA

(d) Succinyl-CoA → Succinic acid

Question-7

Kreb's cycle is also known as

(a) EMP pathway

(b) Glyoxylate cycle

(c) Citric acid cycle

(d) Glycolate cycle

Question-8

Cytochrome oxidase contain

(a) Mg

(b) Fe

(c) Zn

(d) Cu

Question-9

Which of the following is correct about glycolysis (EMP pathway)?

(a) It occurs in cytoplasm.

(b) It is a common path for aerobic and anaerobic respiration.

(c) $O_2$ is not required for this process.

(d) All the above

Question-10

The overall goal of glycolysis, Kreb’s cycle and the electron transport system is the formation of

(a) sugars

(b) ATP in one large oxidation reaction

(c) nucleic acids

(d) ATP in small stepwise units