Respiration in Plants Test

Question 1
1 / -0

The intermediate between glycolysis and TCA cycle is

A
Pyruvic acid

B
Glucose-1, 6-diphosphate

C
Oxaloacetate

D
Acetyl CoA

Question 2
1 / -0

Find the incorrect match (with respect to ATP gain) -

A
Bacterial cell - $$38$$ ATP or $$2$$ ATp

B
Citric Acid Cycle - $$12$$ ATP

C
Nerve cell - $$38$$ ATP

D
Liver cell - $$38$$ ATP

Question 3
1 / -0

During respiration,

A
2 PGAL during glycolysis and none of the PGAL produced in Kreb's cycle.

B
2 PGAL during glycolysis and 4 Pyruvic acid are produced in Kreb's cycle.

C
2 PGAL during glycolysis and 2 Pyruvic acid are produced in Kreb's cycle.

D
PGAL is not produced during respiratory events.

Question 4
1 / -0

Which of the following options does not hold good regarding anaerobic respiration of fermentation?

A
Occurs inside the mitochondria

B
Partial breakdown of glucose occurs

C
Net gain of only 2 ATP molecules

D
None of these

Question 5
1 / -0

How many oxygen atoms are required for the complete oxidation of pyruvate?

A
6

B
5

C
4

D
3

Question 6
1 / -0

In kreb cycle, the removal of $$CO_2$$ and $$NAD^+$$ reduction steps are respectively

A
3 and 2

B
2 and 3

C
2 and 1

D
3 and 4

Question 7
1 / -0

Study carefully the following statements and select the incorrect ones.
(i) When fats are used in respiration, the RQ is more than unity because fats contain more $${O}_{2}$$ and require relatively less amount of $${O}_{2}$$ for oxidation.
(ii) The most important energy carrier is ATP. This energy-rich compound is mobile and can pass from one cell to another.
(iii) Before pyruvic acid enters Krebs' cycle, one of the two carbon atoms of pyruvic acid is reduced to carbon atoms of pyruvic acid is reduced to carbon dioxide in the reaction called reductive carboxylation.
(iv) A special electron carrier system located in the mitochondrial membrane is called a shuttle system. It transfers electrons from the hydrogens of cytoplasmic NADH to the mitochondrial electron carriers across the mitochondrial membrane.
(v) Zymase is a complex mixture of many enzymes which requires several coenzymes for its action. The enzyme complex-zymase catalyses series of reactions taking place during fermentation leading to the production of ethyl alcohol.

A
(i) and (ii)

B
(iii) and (iv)

C
(i), (ii) and (iii)

D
(iii), (iv) and (v)

Question 8
1 / -0

During amphibolic pathway, acetyl Co-A can perform the biosynthesis of

A
Amino acid

B
Gibberellic acid

C
Fatty acid

D
Nucleic acid

Question 9
1 / -0

Respiratory quotient may be represented as

A
$${O}_{2}$$ taken in/$${CO}_{2}$$ evolved

B
$${CO}_{2}$$ evolved/$${O}_{2}$$ taken in

C
$${O}_{2}$$ taken in

D
$${CO}_{2}$$ taken in

Question 10
1 / -0

Identify A and B in the given reaction.
$$Pyruvic \,\,acid+CoA+{NAD}^{+}\xrightarrow[Pyruvate \,\,dehydrogenase]{Mg^{2+}}A+B+NADH+{H}^{+}$$

A
A- PEP ; B-$$CO_2$$

B
A-Acetyl CoA ; B-$$CO_2$$

C
A-$$CO_2$$ ; B- $$H_2O$$

D
A- Acetyl CoA ; B-$$H_2O$$

Submit Test

Respiration in ...

Question 1

Pyruvic acid

Glucose-1, 6-diphosphate

Oxaloacetate

Acetyl CoA

Question 2

Bacterial cell - $$38$$ ATP or $$2$$ ATp

Citric Acid Cycle - $$12$$ ATP

Nerve cell - $$38$$ ATP

Liver cell - $$38$$ ATP

Question 3

2 PGAL during glycolysis and none of the PGAL produced in Kreb's cycle.

2 PGAL during glycolysis and 4 Pyruvic acid are produced in Kreb's cycle.

2 PGAL during glycolysis and 2 Pyruvic acid are produced in Kreb's cycle.

PGAL is not produced during respiratory events.

Question 4

Occurs inside the mitochondria

Partial breakdown of glucose occurs

Net gain of only 2 ATP molecules

None of these

Question 5

6

5

4

3

Question 6

3 and 2

2 and 3

2 and 1

3 and 4

Question 7

(i) and (ii)

(iii) and (iv)

(i), (ii) and (iii)

(iii), (iv) and (v)

Question 8

Amino acid

Gibberellic acid

Fatty acid

Nucleic acid

Question 9

$${O}_{2}$$ taken in/$${CO}_{2}$$ evolved

$${CO}_{2}$$ evolved/$${O}_{2}$$ taken in

$${O}_{2}$$ taken in

$${CO}_{2}$$ taken in

Question 10

A- PEP ; B-$$CO_2$$

A-Acetyl CoA ; B-$$CO_2$$

A-$$CO_2$$ ; B- $$H_2O$$

A- Acetyl CoA ; B-$$H_2O$$

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