Q. No.PGA as the first CO2 fixation was discovered in the photosynthesis of
1.
bryophyte
2.
gymnosperm
3.
angiosperm
4.
algae
Cyclic-photophosphorylation results in the formation of
1. NADPH
2. ATP and NADPH
3. ATP, NADPH and O2
4. ATP
The C4 plants grow very efficiently in warm climates because they
| 1. | consume fewer ATP molecules for glucose synthesis |
| 2. | minimize photorespiratory losses |
| 3. | have more efficient chloroplasts |
| 4. | contain enzymes which are not inactivated at high temperatures. |
Production of NADPH in a chloroplast takes place during
1. cyclic photophosphorylation
2. non-cyclic photophosphorylation
3. series photophosphorylation
4. substrate level photophosphorylation.
Blackman's law is related to
(1) respiration
(2) transpiration
(3) root pressure
(4) photosynthesis.
Which of the following statements is correct?
| 1. | Photorespiration is useful process. |
| 2. | C4 plants are more efficient than C3 plants. |
| 3. | C4 plants are less efficient than C3 plants. |
| 4. | Photorespiration is absent in C3 plants but present in C4 plants. |
Photorespiration shows formation of
| 1. | sugar but not ATP |
| 2. | ATP but not sugar |
| 3. | both ATP and sugar |
| 4. | neither ATP nor sugar |
C4 plants have better productivity because
| 1. | C4 plants absorb more light |
| 2. | C4 plants absorb more CO2 |
| 3. | C4 plants does not carry photorespiration |
| 4. | C4 plants have more amount of RuBisCO. |
The first carbon dioxide fixation product of C4 plant is
| 1. | Oxaloacetic acid | 2. | ribulose biphosphate |
| 3. | phosphoenol pyruvate | 4. | phosphoglyceric acid. |
Carbon dioxide is necessary for photosynthesis. The chemical used to remove this gas most effectively from entering a control apparatus is
1. calcium oxide
2. distilled water
3. potassium hydroxide solution
4. sodium carbonate.
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