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Q. No.One scientist cultured Cladophora in a suspension of Azotobacter and illuminated the culture by splitting light through a prism. He observed that bacteria accumulated mainly in the region of:
| 1. | Violet and green light | 2. | Indigo and green light |
| 3. | Orange and yellow light | 4. | Blue and red light |
Subtopic: Historical View: Experiments |
92%
Level 1: 80%+
NEET - 2019
Hints
Match List-I with List-II
Choose the correct answer from the options given below:
| List-I | List-II | ||
| (A) | Chlorophyll a | (I) | Yellow to yellow orange |
| (B) | Chlorophyll b | (II) | Yellow green |
| (C) | Xanthophyll | (III) | Blue green |
| (D) | Carotenoids | (IV) | Yellow |
| Options: | (A) | (B) | (C) | (D) |
| 1. | III | II | IV | I |
| 2. | III | I | IV | II |
| 3. | II | III | I | IV |
| 4. | IV | III | II | I |
Subtopic: Pigments |
84%
Level 1: 80%+
NEET - 2023
Hints
The photochemical phase of photosynthesis include:
Choose the correct answer from the options given below:
| A. | Oxygen release | B. | Formation of NADPH |
| C. | Use of ATP | D. | Water splitting |
| E. | Carboxylation | ||
| 1. | C and E only | 2. | A, B and D only |
| 3. | B, C and E only | 4. | A, B, C and D only |
Subtopic: Light Reaction: Electron Transport |
65%
Level 2: 60%+
NEET - 2024
Hints
Which of the following statements is incorrect?
| 1. | Grana lamellae have both PS I and PS II. |
| 2. | Cyclic photophosphorylation involves both PS I and PS II. |
| 3. | Both ATP and NADPH + H+ are non-cyclic synthesized during photophosphorylation. |
| 4. | Stroma lamellae have PS I only and lack NADP reductase. |
Subtopic: Light Reaction: Electron Transport |
83%
Level 1: 80%+
NEET - 2021
Hints
Identify the correct statements regarding chemiosmotic hypothesis:
Choose the correct answer from the options given below:
| (a) | Splitting of the water molecule takes place on the inner side of the membrane. |
| (b) | Protons accumulate within the lumen of the thylakoids. |
| (c) | The primary acceptor of electrons transfers the electrons to an electron carrier. |
| (d) | NADP reductase enzyme is located on the stroma side of the membrane. |
| (e) | Protons increase in number in stroma. |
| 1. | (a), (b) and (e) | 2. | (a), (b) and (d) |
| 3. | (b), (c) and (d) | 4. | (b), (c) and (e) |
Subtopic: Chemiosmotic hypothesis |
77%
Level 2: 60%+
NEET - 2022
Hints
Which one of the following is not true regarding the release of energy during ATP synthesis through chemiosmosis?
It involves:
It involves:
| 1. | Reduction of NADP to NADPH2 on the stroma side of the membrane |
| 2. | Breakdown of proton gradient |
| 3. | Breakdown of electron gradient |
| 4. | Movement of protons across the membrane to the stroma |
Subtopic: Chemiosmotic hypothesis |
74%
Level 2: 60%+
NEET - 2022
Hints
Observe the given figure. Identify the different stages labelled with alphabets by selecting the correct option:
| 1. | A-Carboxylation, B-Regeneration, C-Reduction |
| 2. | A-Reduction, B-Decarboxylation, C-Regeneration |
| 3. | A-Carboxylation, B-Reduction, C-Regeneration |
| 4. | A-Reduction, B-Carboxylation, C-Regeneration |
Subtopic: Dark Reaction : Calvin Cycle |
90%
Level 1: 80%+
NEET - 2024
Hints
What is the role of large bundle sheath cells found around the vascular bundles in C4 plants?
| 1. | To protect the vascular tissue from high light intensity. |
| 2. | To provide the site for photorespiratory pathway. |
| 3. | To increase the number of chloroplast for the operation of Calvin cycle. |
| 4. | To enable the plant to tolerate high temperature. |
Subtopic: Question on C4 Pathway |
Level 3: 35%-60%
NEET - 2022
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
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) |
88%
Level 1: 80%+
NEET - 2016
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