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
1. are rich in PEP carboxylase
2. lack RuBisCo
3. lack both RuBisCo and PEP carboxylase
4. are rich in RuBisCo
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 |
In Kranz anatomy, the bundle sheath cells have:
| 1. | thick walls, many intercellular spaces and few chloroplasts |
| 2. | thin walls, many intercellular spaces and no chloroplasts |
| 3. | thick walls, no intercellular spaces and a large number of chloroplasts |
| 4. | thin walls, no intercellular spaces and several chloroplasts |
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 |
Kranz anatomy is one of the characteristics of the leaves of:
1. Wheat
2. Sugarcane
3. Mustard
4. Potato
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