Q. No.Production of NADPH in a chloroplast takes place during
1. cyclic photophosphorylation
2. non-cyclic photophosphorylation
3. series photophosphorylation
4. substrate level photophosphorylation.
The photoautotrophic organisms that do not split water to obtain reducing power are
| 1. | purple bacteria |
| 2. | cyanobacteria |
| 3. | green plants |
| 4. | none of these |
Dark reaction occurs
| 1. | only in light |
| 2. | only in the absence of light |
| 3. | independent of light |
| 4. | both (1) and (3). |
Photorespiration, usually occurs in
| 1. | one cell organelle |
| 2. | two cell organelles |
| 3. | three cell organelles |
| 4. | four cell organelles. |
Which of the following statements about phytochrome is true?
| 1. | Pr absorbs yellow light and becomes Pfr |
| 2. | Pr absorbs red light and becomes Pfr |
| 3. | Pfr absorbs red light and becomes Pr |
| 4. | Pfr absorbs yellow light and becomes Pr . |
Blackman's law is related to
(1) respiration
(2) transpiration
(3) root pressure
(4) photosynthesis.
The photorespiratory carbon-oxidation cycle involves the interaction of
1. chloroplast
2. mitochordria
3. peroxisomes
4. all of these.
Photorespiration in C3 plants starts from:
(1) phosphoglycerate
(2) phosphoglycolate
(3) Glycerate
(4) glycine.
© 2025 GoodEd Technologies Pvt. Ltd.