Q. No.Identify the incorrectly matched pair:
1.
PS I
P700 is reaction center
2.
RuBP
5 carbon compound
3.
PS II
P680 is reaction center
4.
C3 plants
Kranz anatomy
The number of turns of Calvin cycle required to produce one molecule of Glyceraldehyde 3 Phosphate is:
| 1. | 1 | 2. | 2 |
| 3. | 3 | 4. | 6 |
Identify the correct statement regarding the functioning of photosystem II?
| 1. | The reaction center is P700. |
| 2. | It works after PS I in non cyclic photophosphorylation. |
| 3. | Water splits and carbon dioxide is released. |
| 4. | The electron vacancies in P680 are filled by electrons derived from water. |
The products of non-cyclic photophosphorylation include:
| 1. | ATP and P700 | 2. | ATP and NADPH |
| 3. | ADP and NADP | 4. | P700 and P680 |
The extra ATP required [as compared to NADPH] in Calvin cycle comes from:
| 1. | photosystem II | 2. | photosystem I |
| 3. | cyclic electron flow | 4. | non cyclic electron flow |
Chemiosmosis in chloroplasts is possible because of:
| 1. | establishment of a proton gradient across the thylakoid membrane. |
| 2. | diffusion of electrons through the ATP synthase. |
| 3. | osmosis of water from thylakoid to stroma. |
| 4. | presence of large amount of oxygen in the stroma. |
In chloroplasts, protons are actively pumped from
| 1. | the intermembrane space to the matrix. |
| 2. | the matrix to the stroma. |
| 3. | the stroma to the thylakoid space. |
| 4. | the thylakoid space to the intermembrane space. |
The primary function of the Calvin cycle is to:
| 1. | use ATP to release carbon dioxide |
| 2. | use NADPH to release carbon dioxide |
| 3. | split water and release oxygen |
| 4. | fix inorganic carbon to simple sugars |
The greatest problem with photorespiration is faced by:
| 1. | C4 plants | 2. | C3 plants |
| 3. | CAM plants | 4. | purple sulfur bacteria |
Oxygen, during oxygenic photosynthesis, is produced during:
1. cyclic photophosphorylation
2. the light-dependent reactions involving photosystems I and II
3. Calvin cycle
4. the Krebs cycle
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