Q. No.Match List-I with List-II
Choose the correct answer from the options given below:
| List-I | List-II | ||
| A | C4 Pathway | I. | \(2\text{H}_2\text{O}\rightarrow4\text{H}^++\text{O}_2=4\text{e}^-\) |
| B. | Light reaction | II. | Ribulose 1,5-bisphosphate |
| C. | Photorespiration | III. | 3-carbon molecule, phosphoenol pyruvate |
| D. | Calvin cycle | IV. | Phosphoglycolate |
| 1. | A-II, B-I, C-IV, D-III |
| 2. | A-IV, B-II, C-I, D-III |
| 3. | A-III, B-I, C-IV, D-II |
| 4. | A-III, B-IV, C-II, D-I |
Subtopic: Photosystems | Dark Reaction : Calvin Cycle | C4 Cycle (Hatch & Slack Pathway) | Photorespiration |
77%
Level 2: 60%+
NEET - 2024
Hints
Given below are two statements:
In the light of the above statements, choose the correct answer from the options given below :
| Statement I: | The primary \(CO_2\) acceptor in \(C_4\) plants is phosphoenolpyruvate and is found in the mesophyll cells. |
| Statement II: | Mesophyll cells in \(C_4\) plants lack RuBisCO enzyme. |
| 1. | Statement I is incorrect but Statement II is correct. |
| 2. | Both Statement I and Statement II are correct. |
| 3. | Both Statement I and Statement II are incorrect. |
| 4. | Statement I is correct but Statement II is incorrect. |
Subtopic: C4 Cycle (Hatch & Slack Pathway) |
82%
Level 1: 80%+
NEET - 2022
Hints
The ratio of carbon dioxide fixation between C4 plants and C3 plants is :
| 1. | 2:1 | 2. | 2: 3 |
| 3. | 1:1 | 4. | 1:2 |
Subtopic: Dark Reaction : Calvin Cycle | C4 Cycle (Hatch & Slack Pathway) |
56%
Level 3: 35%-60%
NEET - 2022
Hints
The first stable product of CO2 fixation in sorghum is:
1. Succinic acid
2. Phosphoglyceric acid
3. Pyruvic acid
4. Oxaloacetic acid
Subtopic: C4 Cycle (Hatch & Slack Pathway) | C4 Plants Examples |
81%
Level 1: 80%+
NEET - 2021
Hints
Which of the following statements is incorrect?
| 1. | RuBisCO is a bifunctional enzyme |
| 2. | In C4 plants, the site of RuBisCO activity is mesophyll cell |
| 3. | The substrate molecule for RuBisCO activity is a 5-carbon compound |
| 4. | RuBisCO action requires ATP and NADPH |
Subtopic: C4 Cycle (Hatch & Slack Pathway) |
80%
Level 1: 80%+
NEET - 2020
Hints
In Hatch and Slack pathway, the primary CO2 acceptor is -
1. Oxaloacetic acid
2. Phosphoglyceric acid
3. Phosphoenol pyruvate
4. Rubisco
Subtopic: C4 Cycle (Hatch & Slack Pathway) |
73%
Level 2: 60%+
NEET - 2019
Hints
Phosphoenol pyruvate (PEP) is the primary CO2 acceptor in:
1. C4 plants
2. C2 plants
3. C3 and C4 plants
4. C3 plants
Subtopic: C4 Cycle (Hatch & Slack Pathway) |
85%
Level 1: 80%+
NEET - 2017
Hints
A plant in your garden avoids photorespiratory losses, has improved water use efficiency, shows high rates of photosynthesis at high temperatures and has improved efficiency of nitrogen utilization. In which of the following physiological groups would you assign this plant?
| 1. | C4 | 2. | CAM |
| 3. | Nitrogen –fixer | 4. | C3 |
Subtopic: C4 Cycle (Hatch & Slack Pathway) |
87%
Level 1: 80%+
NEET - 2016
Hints
In Kranz anatomy, the bundle sheath cells have:
| 1. | thick walls, many intercellular spaces and few chloroplasts |
| 2. | thin walls, many intercellular spaces and no chloroplasts |
| 3. | thick walls, no intercellular spaces and a large number of chloroplasts |
| 4. | thin walls, no intercellular spaces and several chloroplasts |
Subtopic: C4 Cycle (Hatch & Slack Pathway) |
90%
Level 1: 80%+
AIPMT - 2011
Hints
Study the pathway given below:
In which of the following options, correct words for all the three blanks A, B and C are indicated?
| A | B | C | |
| 1. | Fixation | Transamination | Regeneration |
| 2. | Fixation | Decarboxylation | Regeneration |
| 3. | Carboxylation | Decarboxylation | Reduction |
| 4. | Decarboxylation | Reduction | Regeneration |
Subtopic: C4 Cycle (Hatch & Slack Pathway) |
75%
Level 2: 60%+
AIPMT - 2010
Hints
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