In photorespiration, glycolate is converted into serine and carbon dioxide in:
1. Mitochondria
2. Cholorplasts
3. Vacuoles
4. Peroxisomes
The correct sequence of cell organelles during photorespiration is
(1) chloroplast-Golgi bodies-mitochondria
(2) chloroplast-rough endoplasmic reticulum-dictyosomes
(3) chloroplast-peroxisome-mitochondria
(4) chloroplast-vacuole-peroxisome
During photorespiration, the oxygen consuming reaction(s) occur in :
(1) stroma of chloroplasts and mitochondria
(2) stroma of chloroplasts and peroxisomes
(3) grana of chloroplasts and peroxisomes
(4) stroma of chloroplasts
Photorespiration is favoured by
| 1. | high O2 and low CO2 concentration |
| 2. | low O2 and high CO2 concentration |
| 3. | low light intensity |
| 4. | low temperature. |
Photorespiration, usually occurs in
| 1. | one cell organelle |
| 2. | two cell organelles |
| 3. | three cell organelles |
| 4. | four cell organelles. |
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.
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 |
The Bundle sheath cells are rich in -------- while lacks----.
| 1. | RuBisCo, PEPCase | 2. | PEPCase, RuBisCo |
| 3. | ATPase, Hydrolase | 4. | Hydrolase, ATPase |
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