Q. No.In photosynthesis, the light-independent reactions take place at?
1. Thylakoid lumen
2. photosystem I
3. photosystem II
4. Stromal matrix
Anoxygenic photosynthesis is characteristic of:
1. Rhodospirillum
2. Spirogyra
3. Chlamydomonas
4. Ulva
A process that makes an important difference between C3 and C4 plants is:
1. Transpiration
2. Glycolysis
3. Photosynthesis
4. Photorespiration
The correct sequence of cell organelles during photorespiration is:
1. chloroplast-Golgi bodies-mitochondria
2. chloroplast-rough endoplasmic reticulum-dictyosomes
3. chloroplast-mitochondria-peroxisome
4. chloroplast-vacuole-peroxisome
| 1. | secondary growth | 2. | disease resistance |
| 3. | reproduction | 4. | conserving water |
PGA as the first CO2 fixation product was discovered in photosynthesis of:
1. Bryophyte
2. Gymnosperm
3. Angiosperm
4. Algae
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 |
Stroma in the chloroplasts of higher plants contains:
1. light-independent reaction enzymes
2. light-dependent reaction enzymes
3. ribosomes
4. chlorophyll
Cyclic -photophosphorylation results in the formation of:
1. NADPH
2. ATP and NADPH
3. ATP, NADPH, and O2
4. ATP
| 1. | the CO2 compensation point is more |
| 2. | CO2 generated during photorespiration is trapped and recycled through PEP carboxylase |
| 3. | The CO2 efflux is not prevented |
| 4. | They have more chloroplasts |
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