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Q. No.Given below are two statements:
Assertion (A):
Six molecules of CO2 and twelve molecules of NADPH + H+ and 18 ATP are used to form one hexose molecules.
Reason (R):
Light reaction results in formation of ATP and NADPH2.
1.
Both (A) and (R) are true and (R) is the correct explanation of (A).
2.
Both (A) and (R) are true but (R) is not the correct explanation of (A).
3.
(A) is true but (R) is false.
4.
Both (A) and (R) are false.
- If both the assertion and the reason are true and the reason is a correct explanation of the assertion
- If both the assertion and reason are true but the reason is not a correct explanation of the assertion
- If the assertion is true but the reason is false
- If both the assertion and reason are false
- If both the assertion and the reason are true and the reason is a correct explanation of the assertion
- If both the assertion and reason are true but the reason is not a correct explanation of the assertion
- If the assertion is true but the reason is false
- If both the assertion and reason are false
Subtopic: Dark Reaction: Biosynthetic Phase | Dark Reaction : Calvin Cycle |
78%
From NCERT
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A:
Peroxisomes
participate in photorespiration in C4 plants.
R: Catalase enzyme is present in high concentration in peroxisomes
In the following questions a statement of assertion (A) is followed by a statement of reason (R).
1. If both Assertion & Reason are true and the reason is the correct explanation of the assertion, then mark (1)
2. If both Assertion & Reason are true but the reason is not the correct explanation of the assertion, then mark (2)
3. If Assertion is true statement but Reason is false, then mark (3)
4. If both Assertion and Reason are false statements, then mark (4)
R: Catalase enzyme is present in high concentration in peroxisomes
In the following questions a statement of assertion (A) is followed by a statement of reason (R).
1. If both Assertion & Reason are true and the reason is the correct explanation of the assertion, then mark (1)
2. If both Assertion & Reason are true but the reason is not the correct explanation of the assertion, then mark (2)
3. If Assertion is true statement but Reason is false, then mark (3)
4. If both Assertion and Reason are false statements, then mark (4)
- If both the assertion and the reason are true and the reason is a correct explanation of the assertion
- If both the assertion and reason are true but the reason is not a correct explanation of the assertion
- If the assertion is true but the reason is false
- If both the assertion and reason are false
Subtopic: Questions on Photorespiration |
57%
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Given below are two statements:
| Assertion (A): | For evolution of O2 in photosynthesis, PS-II is required. |
| Reason (R): | PS II is reduced by pulling electrons from water due to which photolysis of H2O occurs. |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
| 3. | (A) is true but (R) is false. |
| 4. | Both (A) and (R) are false. |
Subtopic: Light Reaction: Electron Transport | Light Reactions :1 |
80%
From NCERT
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A protein that spans the phospholipid bilayer one or more times is
1. a transmembrane protein.
2. an integral protein.
3. a peripheral protein.
4. an integrin.
1. a transmembrane protein.
2. an integral protein.
3. a peripheral protein.
4. an integrin.
Subtopic: Chemiosmotic hypothesis |
60%
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Some photosynthetic organisms contain chloroplasts that lack photosystem II, yet are able to survive. The best way to detect the lack of photosystem II in these organisms would be
1. to determine if they have thylakoids in the chloroplasts.
2. to test for liberation of O2 in the light.
3. to test for CO2 fixation in the dark.
4. to do experiments to generate an action spectrum.
1. to determine if they have thylakoids in the chloroplasts.
2. to test for liberation of O2 in the light.
3. to test for CO2 fixation in the dark.
4. to do experiments to generate an action spectrum.
Subtopic: Light Reactions |
71%
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Hints
Consider the following main reactions in the tricarboxylic acid cycle and arrange them in order:
A. Condensation
B. Dehydrogenation
C. Isomerization
D. Oxidative decarboxylation
E. Substate-level phosphorylation
Choose the correct one from the options given below:
1. A > C > D > E > B
2. A > B > C > D > E
3. C > A > B > E > D
4. A > D > E > C > B
A. Condensation
B. Dehydrogenation
C. Isomerization
D. Oxidative decarboxylation
E. Substate-level phosphorylation
Choose the correct one from the options given below:
1. A > C > D > E > B
2. A > B > C > D > E
3. C > A > B > E > D
4. A > D > E > C > B
Subtopic: Dark Reaction : Calvin Cycle |
53%
From NCERT
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Given below are two statements
Statement I: In photosynthesis, the membrane system is responsible for the synthesis of ATP and NADH in carbon reaction
Statement II: In photosynthesis, enzymatic reactions synthesize sugar and which in turn form starch. These reactions are driven by light
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: In photosynthesis, the membrane system is responsible for the synthesis of ATP and NADH in carbon reaction
Statement II: In photosynthesis, enzymatic reactions synthesize sugar and which in turn form starch. These reactions are driven by light
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: Light Reaction: Electron Transport |
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Kranz anatomy is a characteristic feature of
1. Glycine max
2. Volvox aureus
3. Amaranthus viridis
4. Aspergillus niger
1. Glycine max
2. Volvox aureus
3. Amaranthus viridis
4. Aspergillus niger
Subtopic: C4 Cycle (Hatch & Slack Pathway) | C4 Plants Examples |
61%
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Identify the sequence of steps followed in linear electron flow during light reaction of photosynthesis
A. Photoexcitation of P700 and transfer of an electron to NADP+ via ferredoxin
B. Photolysis of H2O
C. Chemiosmosis and generation of ATP
D. Photoexcitation of P680 and release of an electron.
E. Electron transport to plastocyanin from plastoquinone via cytochrome complex
Choose the correct answer from the options given below
1. E, D, C, B, A
2. B, D, C, A, E
3. D, B, E, C, A
4. A, B, C, D, E
A. Photoexcitation of P700 and transfer of an electron to NADP+ via ferredoxin
B. Photolysis of H2O
C. Chemiosmosis and generation of ATP
D. Photoexcitation of P680 and release of an electron.
E. Electron transport to plastocyanin from plastoquinone via cytochrome complex
Choose the correct answer from the options given below
1. E, D, C, B, A
2. B, D, C, A, E
3. D, B, E, C, A
4. A, B, C, D, E
Subtopic: Light Reaction: Electron Transport | Light Reactions :1 |
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Important differences between C3 and C4 plants are
A. Kranz anatomy
B. Electron Transport System
C. Dimorphic chloroplasts
D. Cyclic photophosphorylation
E. Light reaction
Choose the correct answer from the options given below
1. A and B only
2. A and C only
3. A and D only
4. A and E only
A. Kranz anatomy
B. Electron Transport System
C. Dimorphic chloroplasts
D. Cyclic photophosphorylation
E. Light reaction
Choose the correct answer from the options given below
1. A and B only
2. A and C only
3. A and D only
4. A and E only
Subtopic: C4 Cycle (Hatch & Slack Pathway) |
70%
From NCERT
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