COLUMN I |
COLUMN II | ||
A | Primary acceptor of carbon dioxide | P | RuBP |
B | Cells in which Calvin cycle takes place | Q | PEP |
C | Primary carbon dioxide fixation product | R | Bundle sheath |
D | Example | S | Mesophyll |
T | PGA | ||
U | OAA | ||
V | Sorghum | ||
W | Wheat |
A | B | C | D | |
1. | Q | S | U | V |
2. | P | S | T | W |
3. | Q | R | U | V |
4. | P | R | T | W |
Assertion (A): | Cyclic photophosphorylation results in the synthesis of ATP but not of NADPH + H+. |
Reason (R): | The excited electron does not pass on to NADP+ but is cycled back to the PS I complex through the electron transport chain. |
1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
3. | (A) is True but (R) is False. |
4. | Both (A) and (R) are False. |
Assertion (A): | The reaction centres in both photosystems in plants is the same. |
Reason (R): | The reaction centres of both photosystems are formed by chlorophyll b molecules. |
1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
3. | (A) is true but (R) is false. |
4. | Both (A) and (R) are false. |
I: | The water-splitting complex is located on the inner side of the thylakoid membrane |
II: | The NADP reductase enzyme is located on the stromal side of the thylakoid membrane |
1. | Only I is correct |
2. | Only II is correct |
3. | Both I and II are correct |
4. | Both I and II are incorrect |
1. | Chlorophyll a is the chief pigment associated with photosynthesis. |
2. | In the chromatogram, carotenoids appear yellow to yellow-orange. |
3. | Accessory pigments protect chlorophyll a from photo-oxidation. |
4. | The maximum absorption of chlorophyll a is in blue and green wavelength region of light. |
I: | Current availability of carbon dioxide levels is limiting to the C4 plants. |
II: | C3 plants have a much lower temperature optimum than C4 plants. |
1. | Only I is correct | 2. | Only II is correct |
3. | Both I and II are correct | 4. | Both I and II are incorrect |
COLUMN I | COLUMN II | ||
A | Jan Ingenhousz | P | Provided evidence for production of glucose when plants grow |
B | T. W Engelmann | Q | Described the first action spectrum for photosynthesis |
C | Julius von Sachs | R | Showed that sunlight is essential for photosynthesis |
D | Cornelius van Neil | S | Inferred that oxygen evolved in photosynthesis comes from water and not from carbon dioxide |
A | B | C | D | |
1. | R | Q | P | S |
2. | Q | R | S | P |
3. | P | S | R | Q |
4. | S | P | Q | R |
I: | include chlorophyll b, xanthophylls and carotenoids. |
II: | absorb light and transfer electrons to chlorophyll a. |
III: | protect chlorophyll a from photo-oxidation. |
1. | Only I | 2. | Only I and III |
3. | Only II and III | 4. | Only IV |
1. | Chlorophyll a is the chief pigment associated with photosynthesis. |
2. | Splitting of water is associated with PS II |
3. | Cyclic flow of electrons results only in the synthesis of NADH |
4. | Biosynthetic phase is dependent on the products of the light reaction |