I: | production of glucose when plants grow |
II: | location of green substance in plants in special bodies |
A: | Glucose produced during photosynthesis is usually stored as cellulose in plants. |
B: | The ‘green substance’ refers to chlorophyll. |
C: | ‘Special bodies’ refer to chloroplasts in the plant cells. |
1. | Only A and B | 2. | Only B and C |
3. | Only A | 4. | A, B and C |
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1. | 6CO2 + 12H2O + light energy → C6H12O6 + 6O2+ 6H2O |
2. | 6CO2 + 6H2O + light energy → C6H12O6 + 6O2 |
3. | CO2 + H2O + light energy → [CH2O] + O2 |
4. | C6H12O6 + 6O2 → 6CO2 + 6H2O |
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Statement I: | The membrane system is the site of enzymatic reactions leading to synthesis of sugar. |
Statement II: | The stroma is responsible for trapping the light energy and also for the synthesis of ATP and NADPH. |
1. | Both Statement I and Statement II are correct |
2. | Both Statement I and Statement II are incorrect |
3. | Statement I is correct but Statement II is incorrect |
4. | Statement I is incorrect but Statement II is correct |
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I: | Carbon reactions during photosynthesis in higher plants are called as dark reactions. |
II: | They occur in darkness and they are not light-dependent. |
1. | Both I and II are correct and II explains I |
2. | Both I and II are correct but II does not explain I |
3. | I is correct but II is incorrect |
4. | I is incorrect but II is correct |
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I: | include Carotenoids and Xanthophylls but not Chlorophyll b. |
II: | enable a wider range of wavelength of incoming light to be utilised for photosynthesis. |
III: | protect Chlorophyll a from photo-oxidation. |
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Column I | Column II | ||
A. | Chlorophyll a | P. | Bright or blue-green |
B. | Chlorophyll b | Q. | Yellow-green |
C. | Xanthophylls | R. | Yellow |
D. | Carotenoids | S. | Yellow to yellow-orange |
A | B | C | D | |
1. | P | Q | R | S |
2. | Q | R | S | P |
3. | R | S | P | Q |
4. | S | P | Q | R |
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I: | is associated with PS II |
II: | releases one molecule of oxygen on splitting of two water molecules |
III: | releases protons and oxygen in the thylakoid lumen |
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Statement I: | When only PS I is functional, the electron is circulated within the photosystem and the phosphorylation occurs due to cyclic flow of electrons. |
Statement II: | Cyclic photophosphorylation also occurs when only light of wavelengths beyond 680 nm are available for excitation. |
1. | Both Statement I and Statement II are correct |
2. | Both Statement I and Statement II are incorrect |
3. | Statement I is correct but Statement II is incorrect |
4. | Statement I is incorrect but Statement II is correct |
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