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Q. No.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 |
81%
Level 1: 80%+
Hints
Light harvesting complexes are made up of-
1. proteins
2. pigments
3. protein and pigments
4. proteins and lipids.
Subtopic: Light Reactions :1 | Light Reactions |
74%
Level 2: 60%+
Hints
In chloroplast the movement of electrons from PS-II to electron transport system is-
| 1. | uphill in terms of redox potential scale. |
| 2. | downhill in terms of redox potential scale. |
| 3. | from one cytochrome to another |
| 4. | None of the above. |
Subtopic: Light Reactions :2 | Light Reactions :3 | Light Reactions |
61%
Level 2: 60%+
Hints
Electrons in the reaction center of PS-I are excited by-
| 1. | blue light | 2. | red light |
| 3. | green light | 4. | blue and red light. |
Subtopic: Light Reactions :1 | Light Reactions :2 | Light Reactions |
50%
Level 3: 35%-60%
Hints
Subtopic: Light Reactions :1 | Light Reactions :2 | Light Reactions |
69%
Level 2: 60%+
Hints
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 |
83%
Level 1: 80%+
Hints
Spliting of water is associated with-
| 1. | PS II |
| 2. | PS I |
| 3. | PS I AND PS II |
| 4. | outer membrane of thylakoid. |
Subtopic: Light Reactions :3 | Light Reactions |
86%
Level 1: 80%+
Hints
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 |
81%
Level 1: 80%+
Hints
Where are the protons and oxygen produced by the splitting of water likely to be released?
| 1. | in the lumen of thylakoid |
| 2. | on the outer side of the membrane |
| 3. | Both a and b |
| 4. | used up in the light reaction |
Subtopic: Light Reactions :3 | Light Reactions |
61%
Level 2: 60%+
Hints
In plant cells ATP is synthesised in-
| 1. | mitochondria |
| 2. | chloroplast |
| 3. | mitochondria and chloroplast |
| 4. | in mitochondria during day and in chloroplasts during night. |
Subtopic: Light Reactions :3 | Light Reactions |
73%
Level 2: 60%+
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