Q. No.ATP synthesis is linked to-
| 1. | Development of electron gradient |
| 2. | Development of atomic gradient |
| 3. | Development of proton gradient |
| 4. | Flow of electrons across the membrane |
Subtopic: Light Reactions :3 | Light Reactions |
86%
From NCERT
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Production of NADPH in a chloroplast takes place during
1. cyclic photophosphorylation
2. non-cyclic photophosphorylation
3. series photophosphorylation
4. substrate level photophosphorylation.
Subtopic: Light Reactions :2 | Light Reactions |
87%
From NCERT
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Synthesis of ATP from ADP and inorganic phosphate in the presence of light is known as-
a. phosphorylation
b. photo-phosphorylation
c. photorespiration
d. photooxidation.
Subtopic: Light Reactions :3 | Light Reactions |
88%
From NCERT
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The reaction centre with respect to cyclic photophosphorylation is
1. P700
2. P680
3. P540
4. P660
Subtopic: Light Reactions |
89%
From NCERT
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In the Z-scheme of light reaction, at how many positions an electron is excited by the light?
1. 1
2. 2
3. 3
4. 4
Subtopic: Light Reactions :1 | Light Reactions :2 | Light Reactions |
82%
From NCERT
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Subtopic: Light Reactions :3 | Light Reactions |
86%
From NCERT
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In photosystem-I, P700 refers to-
| 1. | chl-b |
| 2. | chl-a |
| 3. | number of pigment molecules |
| 4. | absorption peak of chl-a at 700nm. |
Subtopic: Light Reactions :1 | Light Reactions :2 | Light Reactions |
80%
From NCERT
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Which of the following statement is incorrect?
| 1. | Electrons to PS-I are provided by PS-II |
| 2. | Electrons to PS-II are provided by the splitting of water |
| 3. | Electrons to PS-I are provided by the splitting of water |
| 4. | PS-II is physically located on the inner side of the membrane of the thylakoid. |
Subtopic: Light Reactions :3 | Light Reactions |
80%
From NCERT
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The C4 plants differ from C3 plants with reference to the:
| 1. | substrate that accepts CO2 in carbon assimilation |
| 2. | type of end product |
| 3. | type of pigment involved in photosynthesis |
| 4. | end product that will be formed |
Subtopic: Dark Reaction: Biosynthetic Phase | Light Reactions :1 | Light Reactions |
81%
From NCERT
AIIMS - 2014
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Which of the following is incorrect about the light reactions of photosynthesis?
| 1. | P680 and P700 are the reaction centres of PS-I and PS-II respectively |
| 2. | Light energy provides energy for the photolysis of water through excitation of the reaction centre of PS-II |
| 3. | NADPH is not produced in cyclic electrons transport in light reactions |
| 4. | Reactions of the two photosystems are needed for the reduction of NADP |
Subtopic: Light Reactions :3 | Light Reactions |
83%
From NCERT
AIIMS - 2016
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