The numbers of ATP molecules produced during glycolysis, during oxidation of pyruvic acid to acetyl CoA and during the Krebs cycle are, respectively,

Which of the following are true with regard to anaerobic respiration in bacteria?
P. The final electron acceptor is an inorganic substance other than molecular oxygen.
Q. The number of ATP molecules produced per glucose molecule is more than that produced in aerobic respiration.
R. The number of ATP molecules produced per glucose molecule is less than that produced in aerobic respiration.
S. Only substrate level phosphorylation is used to generate ATP.

A

P and S only

B

Q and S only

C

P and R only

D

P, Q and S only

Statement I Two ATP molecules are produced during anaerobic respiration.
Statement II Glucose is converted into pyruvic acid through a series of reaction with a net gain of 2 ATP molecules.

A

Both the statements are individually true and the statement II is the correct explanation of the statement I

B

Both the statements are individually true, but the statement II is not correct explanation of the statement I

C

The statement I is true, but the statement II is false

D

The statement I is false, but the statement II is true

Which of the following chemical substances are authenticated as Neurotransmitters? (a) Acetylcholine and Gamma-aminobutyric acid (b) Dopamine and noradrenalin (c) Lysine and Histamine (d) Pyruvic acid and Acetyl CoA

A

(a) only

B

(c) only

C

(a) and (b)

D

(c) and (d)

In a batch process, the reaction takes place in the presence of an acid medium. The acid is drained from the reaction vessel at the rate of 15ml/s as a result of the density difference of the acid from the reacting component. To avoid wastage of acid, it is recycled to an acid tank which has 1000 L capacity. The acid drained from the reaction vessel, picks up 50 g/L solids from the reactor. Acid is fed once again to the process from acid tank. When the process is started, the acid is almost pure in the tank as a result of filtration. As the reaction proceeds, acid in the tank gets more and more contaminated with the solids. The concentration of the solids should not exceed 100 g/L from the process point of view. The batch time is 16h. Estimate whether the concentration of the solids will exceed 100g/L during the batch reaction.

A

37.04 h

B

30.05 h

C

36.04 h

D

32.05 h

How many molecules of Co2 are produced by an acetyl group of acetyl-Co-A in a citric acid cycle?

A

3

B

5

C

1

D

2

Which of the following option about the fermentation is correct? The incomplete oxidation of glucose is achieved under anaerobic conditions by sets of reactions where pyruvic acid is converted to CO2 and ethanol. The enzymes, pyruvic acid decarboxylase, and alcohol dehydrogenase catalyze these reactions.

A

Option 1 is correct

B

Option 2 is correct

C

Both are correct

D

Both are incorrect

The number of ATP produced by Acetyl Co A in one Krebs cycle is

A

15

B

12

C

24

D

30

Consider the following statements.
1. Glycolysis occurs in cytoplasm.
2. Glycolysis does not require oxygen.
3. In anaerobic organisms, only glycolysis occur and that is called fermentation.
Which of the statement(s) given above is/are correct about glycolysis ?

A

Only 1

B

Only 2

C

1, 2 and 3

D

None of these

Which of the following statements is correct regarding the oxidation number of Oxygen? I. The oxidation number of Oxygen in most compounds is -2. II. When Oxygen is bonded to Fluorine in compounds like Oxygen difluoride and Dioxygen diflouride, the Oxygen is assigned an oxidation number of +2 and +2 respectively. III. In peroxide, an Oxygen atom is assigned an oxidation number of -1 and in Superoxide, each oxygen atom is assigned an oxidation number of -1/2.

A

I only

B

II only

C

I and III only

D

I, II, and III

Consider the following statements regarding Respiration in Plants: 1. Breakdown of sucrose to pyruvic acid is called glycolysis. 2. Glycolysis occurs in the nucleus. Which of the statements given above is/are not correct?

A

1 only

B

2 only

C

Both 1 and 2

D

Neither 1 nor 2

The numbers of ATP molecules produced during glycolysis, during oxidation of pyruvic acid to acetyl CoA and during the Krebs cycle are, respectively,

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