Anaerobic Respiration

Q.

How many ATP are produced in anaerobic glycolysis?

Q. During lactic acid fermentation, how many ATPs are lost when two molecules of pyruvic acid form two molecules of lactic acid?

1. 1 ATP
2. 3 ATPs
3. 6 ATPs
4. There is no loss of ATP

Q. What is incorrect about anaerobic respiration?

1. Partial breakdown of glucose
2. Net gain of 2ATP
3. Rapid oxidation of NADH
4. Reduction of pyruvic acid

Q. In which one of the following processes $C{O}_2$ is not released?

1. Aerobic respiration in plants
2. Aerobic respiration in animals
3. Alcoholic fermentation
4. Lactate fermentation

Q.

Formation of lactic acid from pyruvic acid requires

1. Reduction

2. Oxidation

3. Decarboxylation

4. Hydration

Q. In lactic acid fermentation the final electron acceptor is

1. acetaldehyde
2. ethyl alcohol
3. NADH
4. pyruvic acid

Q. After glycolysis, the first step of ethyl alcohol fermentation requires

1. dehydrogenation
2. decarboxylation
3. FAD reduction
4. $M{n}^{+2}$ acceptance

Q. What are the products of ethyl alcohol fermentation?

1. $C{O}_2,H_{2}O,\text{energy}$
2. $C{O}_2,\text{ethanol},\text{energy}$
3. Lactic acid, energy
4. None of these

Q. Which of the following is not an end product of fermentation?

1. Acetic acid
2. Lactic acid
3. Ethyl Alcohol
4. G-3-P

Q. Assertion: Yeasts, such as Saccharomyces Cerivisiae are used in baking industry.
Reason: Carbon dioxide produced during fermentation causes bread dough to rise by thermal expansion.

1. Both assertion and reason are true and reason is the correct explanation for assertion
2. Both reason and assertion are true but reason is not correct explanation for assertion
3. Assertion is true but reason is false
4. Assertion is true but reason is false

Q. The energy-releasing process in which the substrate is oxidized without an external electron acceptor is called:

1. Aerobic respiration
2. Glycolysis
3. Fermentation
4. Photorespiration

Q. There are three major ways in which different cells handle pyruvic acid produced by glycolysis, these are

1. Lactic acid fermentation, Alcoholic fermentation, Aerobic respiration
2. Oxaloacetic acid fermentation, Lactic acid fermentation, Aerobic respiration
3. Alcoholic fermentation, Oxaloacetic acid fermentation, Citric acid fermentation
4. Alcoholic fermentation, Lactic acid fermentation, Citric acid fermentation

Q. Conversion of pyruvic acid into ethyl alcohol is mediated by

1. phosphatase
2. dehydrogenase
3. decarboxylase and dehydrogenase
4. catalase

Q. In which one of the following processes $C{O}_2$ is not released?

1. Aerobic respiration in plants
2. Aerobic respiration in animals
3. Alcoholic fermentation
4. Lactic acid fermentation

Q. Lactate catalyses the conversion of pyruvate to lactic acid during short term anaerobic respiration.

1. carboxylase
2. dehydrogenase
3. oxidase
4. phosphorylase

Q. Incomplete breakdown of sugar in anaerobic respiration forms ____.

1. Glucose and carbon dioxide
2. Alcohol and carbon dioxide
3. Water and carbon dioxide
4. Fructose and water

Q. During strenuous exercise, the reducing agent of pyruvic acid is

1. FAD
2. NADH and a hydrogen ion
3. A hydrogen ion
4. NADP

Q. The incomplete breakdown of sugars in anaerobic respiration (alcoholic fermentation) results in the formation of

1. Fructose and water
2. Glucose and ${\mathrm{CO}}_2$
3. Alcohol and ${\mathrm{CO}}_2$
4. Water and ${\mathrm{CO}}_2$