Light reaction in stroma lamellae of the chloroplast results in the formation of:
1.
2.
3. ATP
4.
In photosynthesis carbon dioxide is converted to carbohydrates. It is a ......... process.
1. Reductive
2. Oxidative
3. Catabolic and exergonic
4. None of the above
Which of the following characteristics is exhibited by C4 plants?
| I. | Kranz anatomy. |
| II. | The first product of photosynthesis is oxaloacetic acid. |
| III. | Both PEP carboxylase and ribulosebiphosphate carboxylase act as carboxylating enzymes. |
The correct option is:
| 1. | I and III, but not II |
| 2. | I and II, but not III |
| 3. | II and III, but not I |
| 4. | All are correct |
The net requirement of assimilatory power for the formation of 6 hexose molecules in maize plant is:
1. 72 ATP, 48 NADPH
2. 90 ATP, 60 NADPH
3. 108 ATP, 72 NADPH
4. 180 ATP, 72 NADPH
'Sun basket' is:
| 1. | The device to utilize sun rays directly to meet the requirement of heat energy |
| 2. | The sufficient amount of sunlight stored in a cell |
| 3. | A device for taking sunbath |
| 4. | All of the above |
Cyclic -photophosphorylation results in the formation of:
1. NADPH
2. ATP and NADPH
3. ATP, NADPH, and O2
4. ATP
Stroma in the chloroplasts of higher plants contains:
| 1. | light-independent reaction enzymes |
| 2. | light-dependent reaction enzymes |
| 3. | ribosomes |
| 4. | chlorophyll |
C4-plants are more efficient in photosynthesis than C3-plants due to:
| 1. | higher leaf area |
| 2. | presence of larger number of chloroplasts in the leaf cells |
| 3. | presence of thin cuticle |
| 4. | lower rate of photorespiration |
| 1. | secondary growth | 2. | disease resistance |
| 3. | reproduction | 4. | conserving water |
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