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Q. No.
A:
Glycolysis is the first common step of both aerobic as well as anaerobic respiration.
R:
1 molecule of hexose sugar is converted into molecules of pyruvic acid in the absence or presence of oxygen in glycolysis.
In the following questions, a statement of Assertion (A) is followed by a statement of Reason (R).
1.
If both (A) & (R) are true and the (R) is the correct explanation of the (A), then mark (1).
2.
If both (A) & (R) are true but the (R) is not the correct explanation of the (A), then mark (2).
3.
If (A) is a true statement but the (R) is false, then mark (3).
4.
If both (A) and (R) are false statements, then mark (4).
Subtopic: Glycolysis |
68%
From NCERT
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| Statement I: | In fermentation, there is a net gain of 12 molecules of ATP for each molecule of glucose degraded to pyruvic acid whereas only 2 molecules of ATP are generated under aerobic conditions. |
| Statement II: | Fermentation accounts for only a partial breakdown of glucose whereas in aerobic respiration it is completely degraded to CO2 and H2O. |
1. Both Statement I and Statement II are correct.
2. Both Statement I and Statement II are incorrect.
3. Statement I is correct but Statement II is incorrect.
4. Statement I is incorrect but Statement II is correct.
Subtopic: Glycolysis | Fermentation |
76%
From NCERT
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Given below are two statements:
In light of the above statements, choose the most appropriate answer from the options given below:
1. Both Statement I and Statement II are correct.
2. Both Statement I and Statement II are incorrect.
3. Statement I is correct but Statement II is incorrect.
4. Statement I is incorrect but Statement II is correct.
| Statement I: | The first five reactions of glycolytic pathway convert a molecule of glucose into 2 molecules of glyceraldehyde-3-phosphate. |
| Statement II: | The final product of glycolysis is pyruvate in aerobic settings and lactate in anaerobic conditions. |
1. Both Statement I and Statement II are correct.
2. Both Statement I and Statement II are incorrect.
3. Statement I is correct but Statement II is incorrect.
4. Statement I is incorrect but Statement II is correct.
Subtopic: Glycolysis | Fermentation |
57%
From NCERT
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Which of the following event occurs in aerobic respiration?
Choose the correct answer from the options given below:
1. B, D and E only
2. B, C and D only
3. B and D only
4. B and E only
| A. |  |
| B. | \(\small\text { Pyruvic acid }+\mathrm{COA}+\mathrm{NAD}^{-} \underset{\text { Pyruvate dehydrogenase }}{\stackrel{\mathrm{Mg}^{2-}}{\longrightarrow}} \text { Acetyl } \mathrm{COA}+\\ \mathrm{CO}_{2}+\mathrm{NADH}+\mathrm{H}^{-}\) |
| C. |  |
| D. | \(\small\text { Pyruvic acid }+4 \mathrm{NAD}^{-}+\mathrm{FAD}^{-}+2 \mathrm{H}_{2} \mathrm{O}+\mathrm{ADP}+\mathrm{P}_{i} \stackrel{\text { Mitochondrial Matrix }}{\longrightarrow} \\3 \mathrm{CO}_{2}+4 \mathrm{NADH}+4 \mathrm{H}^{-}+\mathrm{FADH}_{2}+\mathrm{ATP}^{}\) |
| E. | \(\small\text { Pyruvic acid }+\mathrm{COA}+\mathrm{NAD}^{-} \stackrel{\text { Mitochondrial Matrix }}{\longrightarrow}\\ \text { Acetyl } \mathrm{COA}+\mathrm{CO}_{2}+\mathrm{NADH}+\mathrm{H}^{-}\) |
1. B, D and E only
2. B, C and D only
3. B and D only
4. B and E only
Subtopic: Glycolysis | Aerobic Respiration | Kreb's Cycle |
54%
From NCERT
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Hints
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Arrange the following steps of Glycolysis, starting from last to first
A. Glyceraldehyde-3-phosphate → 1,3, bis phosphoglyceric acid
B. Fructose-6-phosphate → Fructose 1,6, bisphosphate
C. Glucose → Glucose-6-phosphate
D. 3-Phosphoglyceric Acid → 2-Phosphoglycerate
E. Phosphoenol pyruvate → Pyruvic Acid
Choose the correct answer from the options given below
1. A, D, E, B, C
2. E, D, A, B, C
3. D, E, B, A , C
4. B, E, A, D, C
A. Glyceraldehyde-3-phosphate → 1,3, bis phosphoglyceric acid
B. Fructose-6-phosphate → Fructose 1,6, bisphosphate
C. Glucose → Glucose-6-phosphate
D. 3-Phosphoglyceric Acid → 2-Phosphoglycerate
E. Phosphoenol pyruvate → Pyruvic Acid
Choose the correct answer from the options given below
1. A, D, E, B, C
2. E, D, A, B, C
3. D, E, B, A , C
4. B, E, A, D, C
Subtopic: Glycolysis |
89%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Given below are two statements :
In light of the above statements, choose the most appropriate answer from the options given below
| Statement I: | Respiratory Quotient (RQ) is the ratio of the volume of CO2 evolved to the volume of O2 consumed |
| Statement II: | Respiratory Quotient (RQ) is the ratio of the volume of O2 evolved to the volume of CO2 consumed |
In light of the above statements, choose the most appropriate answer from the options given below
| 1. | Both Statement I and Statement II are correct |
| 2. | Both Statement I and Statement II are incorrect |
| 3. | Statement I is correct but Statement II is incorrect |
| 4. | Statement I is incorrect but Statement II is correct |
Subtopic: Respiratory Quotient |
90%
From NCERT
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In glycolysis, fructose 1,6-bisphosphate is split into DHAP and PGAL. PGAL refers to
1. 3-phosphoglyceraldehyde
2. Pyruvic glyceraldehyde
3. Phosphate glyceraldehyde
4. None of the above
1. 3-phosphoglyceraldehyde
2. Pyruvic glyceraldehyde
3. Phosphate glyceraldehyde
4. None of the above
Subtopic: Glycolysis |
80%
Please attempt this question first.
Hints
Identify the enzyme of TCA cycle located in the inner mitochondrial membranes, and its function.
1. Lactate dehydrogenase and it converts NAD+ to NADH
2. Succinate dehydrogenase and it reduces ubiquinone to ubiquinol
3. Succinate dehydrogenase and it converts NAD+ to NADH
4. Lactate dehydrogenase and it catalyzes the conversion of isocitrate into alpha-ketoglutarate
1. Lactate dehydrogenase and it converts NAD+ to NADH
2. Succinate dehydrogenase and it reduces ubiquinone to ubiquinol
3. Succinate dehydrogenase and it converts NAD+ to NADH
4. Lactate dehydrogenase and it catalyzes the conversion of isocitrate into alpha-ketoglutarate
Subtopic: Kreb's Cycle |
56%
Please attempt this question first.
Hints
Consider the following reactions in glycolysis and arrange in correct sequence:
A. Phosphorylation of glucose
B. Isomerisation of glucose-6-phosphate
C. Isomerisation of dihydroxyacetone phosphate
D. Phosphorylation of fructose-6-phosphate
E. Cleavage of fructose 1, 6-diphosphate
Choose the correct from the options given below:
1. D>B>A>E>C
2. A>B>D>E>C
3. D>B>E>C>A
4. A>E>B>D>C
A. Phosphorylation of glucose
B. Isomerisation of glucose-6-phosphate
C. Isomerisation of dihydroxyacetone phosphate
D. Phosphorylation of fructose-6-phosphate
E. Cleavage of fructose 1, 6-diphosphate
Choose the correct from the options given below:
1. D>B>A>E>C
2. A>B>D>E>C
3. D>B>E>C>A
4. A>E>B>D>C
Subtopic: Glycolysis |
89%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Given below are two statements
Statement I: The end products of Electron Transport System (ETS) are ATP and H2O
Statement II: ETS begins with a reduction of NADH+H+ and ends with oxidation of O2
In light of the above statements, choose the most appropriate answer from the options given below
1. Both Statement I and Statement II are correct
2. Both Statement I and Statement II are incorrect
3. Statement I is correct but Statement II is incorrect
4. Statement I is incorrect but Statement II is correct
Statement I: The end products of Electron Transport System (ETS) are ATP and H2O
Statement II: ETS begins with a reduction of NADH+H+ and ends with oxidation of O2
In light of the above statements, choose the most appropriate answer from the options given below
1. Both Statement I and Statement II are correct
2. Both Statement I and Statement II are incorrect
3. Statement I is correct but Statement II is incorrect
4. Statement I is incorrect but Statement II is correct
Subtopic: ETS:1 |
56%
From NCERT
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