Select Chapter Topics:
Q. No.Consider the two statements:
Assertion (A):
Higher rate of photosynthesis is seen when plants are provided with blue and red regions
of wavelengths of visible light.
Reason (R):
There is maximum absorption by chlorophyll a in the blue and the red regions of the visible light.
1.
(A) is True but (R) is False
2.
Both (A) and (R) are True and (R) explains (A)
3.
Both (A) and (R) are True but (R) does not explain (A)
4.
Both (A) and (R) are False
of wavelengths of visible light.
Subtopic: Pigments |
91%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Consider the two statements:
| Assertion (A): | Cyclic photophosphorylation results only in the synthesis of ATP, but not of NADPH + H+. |
| Reason (R): | Cyclic photophosphorylation occurs only when light of wavelengths beyond 680 nm are available for excitation. |
| 1. | (A) is True but (R) is False |
| 2. | Both (A) and (R) are True and (R) correctly explains (A) |
| 3. | Both (A) and (R) are True but (R) does not correctly explain (A) |
| 4. | Both (A) and (R) are False |
Subtopic: Light Reaction: Electron Transport |
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Consider the two statements:
| Assertion(A): | The protons or hydrogen ions that are produced by the splitting of water accumulate within the lumen of the thylakoids. |
| Reason(R): | The primary accepter of electrons, which is located towards the outer side of the membrane, transfers its electron not to an electron carrier but to an H carrier. |
| 1. | (A) is True but (R) is False |
| 2. | Both (A) and (R) are True and (R) explains (A) |
| 3. | Both (A) and (R) are True but (R) does not explain (A) |
| 4. | Both (A) and (R) are False |
Subtopic: Chemiosmotic hypothesis |
62%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
The radioactive isotope of carbon used by Melvin Calvin to work out the complete biosynthetic pathway in C3 plants was:
1. 11C
2. 12C
3. 13C
4. 14C
1. 11C
2. 12C
3. 13C
4. 14C
Subtopic: WHERE ARE THE ATP AND NADPH USED |
94%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Subtopic: C4 Cycle (Hatch & Slack Pathway) |
91%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Regarding the temperature optimum for photosynthesis of different plants:
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
| I: | Tropical plants have a lower temperature optimum than the plants adapted to temperate climates. |
| II: | The C4 plants respond to higher temperatures and show higher rate of photosynthesis while C3 plants have a much lower temperature optimum. |
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic: Factors Affecting Photosynthesis |
72%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
In the ‘Regeneration’ stage of the Calvin cycle:
| 1. | Five G3P molecules produce three RuBP molecules, using up three molecules of ATP. |
| 2. | Three G3P molecules produce five RuBP molecules, using up three molecules of ATP. |
| 3. | Three G3P molecules produce five RuBP molecules, using up five molecules of ATP. |
| 4. | Five G3P molecules produce three RuBP molecules, using up five molecules of ATP. |
Subtopic: Dark Reaction : Calvin Cycle |
Please attempt this question first.
Hints
Please attempt this question first.
C4 carbon fixation, one of three known photosynthetic processes of carbon fixation in plants, is also called as:
1. Calvin Benson cycle
2. Tricarboxylic acid cycle
3. Hatch–Slack pathway
4. Embden-Meyerhof-Parnas pathway
1. Calvin Benson cycle
2. Tricarboxylic acid cycle
3. Hatch–Slack pathway
4. Embden-Meyerhof-Parnas pathway
Subtopic: C4 Cycle (Hatch & Slack Pathway) |
92%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
RuBisCO:
1. Only I and II are correct
2. Only I and III are correct
3. Only II and III are correct
4. I, II and III are correct
| I: | is the most abundant enzyme in the world |
| II: | is characterised by the fact that its active site can bind to both CO2 and O2 |
| III: | has a much greater affinity for CO2 when the CO2: O2 is nearly equal |
2. Only I and III are correct
3. Only II and III are correct
4. I, II and III are correct
Subtopic: Photorespiration |
88%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Identify the correct statements:
| I: | Only green plants can prepare their own food. |
| II: | In green plants, all cells, tissues and organs photosynthesise. |
| 1. | Only I |
| 2. | Only II |
| 3. | Both I and II |
| 4. | Neither I nor II |
Subtopic: Introduction | Historical View: Experiments | Pigments |
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Select Chapter Topics:
© 2024 GoodEd Technologies Pvt. Ltd.