Q. No.The electrons needed to replace those removed from PS I are provided by:
1.
The LHC
2.
Water
3.
NADPH
4.
PS II
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Consider the following two statements and choose the correct response from the options given below:
| I: | Protons and oxygen formed by splitting of water are released in the lumen of thylakoid. |
| II: | PS II is physically located on the inner side of the membrane of the thylakoid. |
1. Both I and II are true and II explains I
2. Both I and II are true but II does not explain I
3. I is true and II is false
4. I is false and II is true
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The stroma lamellae membranes:
1. have both PS II and NADP reductase enzyme
2. have PS II but not NADP reductase enzyme
3. lack PS II but have NADP reductase enzyme
4. lack both PS II and NADP reductase enzyme
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The NADP reductase enzyme is located:
| 1. | within the thylakoid membrane |
| 2. | on the stroma side of the thylakoid membrane |
| 3. | on the lumen side of the thylakoid membrane |
| 4. | in the thylakoid lumen |
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The ATP synthase consists of two parts where:
| 1. | is a transmembrane channel and protrudes out towards stroma |
| 2. | is a transmembrane channel and protrudes out towards stroma |
| 3. | is a transmembrane channel and protrudes out towards lumen of thylakoid |
| 4. | is a transmembrane channel and protrudes out towards lumen of thylakoid |
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NCERT textbook mentions that “immediately after light becomes unavailable, the biosynthetic process continues for some time and then stops”. Why does it stop after some time?
| 1. | The respiration stops in the absence of light and hence synthesis of sugars stops |
| 2. | The reactions of the biosynthetic phase are directly dependent on light |
| 3. | The reactions of the biosynthetic phase are dependent on the products of light reaction |
| 4. | This is a mistake in NCERT as Dark Reactions will continue throughout night |
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How many carbon atoms does the primary carbon dioxide acceptor have in C3 photosynthesis?
| 1. | 2 | 2. | 3 |
| 3. | 4 | 4. | 5 |
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How many ATP and NADPH are respectively required to make one molecule of glucose through the Calvin pathway?
| 1. | 3 and 2 | 2. | 6 and 6 |
| 3. | 9 and 6 | 4. | 18 and 12 |
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Identify the incorrect statement regarding the comparison of plants to the plants:
1. They tolerate higher temperatures
2. They show a response to high light intensities
3. They have a lower productivity of biomass
4. They lack photorespiration
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The bundle sheath cells are characterized by:
| I: | a large number of chloroplasts present in them |
| II: | thick cell walls impervious to gas exchange |
| III: | large intercellular spaces |
| 1. Only I and II | 2. Only I and III |
| 3. Only II and III | 4. I, II and III |
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