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
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 |
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 |
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 |
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 |
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 |
How many carbon atoms does the primary carbon dioxide acceptor have in C3 photosynthesis?
| 1. | 2 | 2. | 3 |
| 3. | 4 | 4. | 5 |
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 |
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 |
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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