Q. No.The correct equation, representing the overall process of photosynthesis is –
(1) 6CO2 + 6H2O C6H12O6 + 6H2O + 6O2
(2) 6CO2 + 6H2O C6H12O6 + 6O2
(3) 6CO2 + 12H2O C6H12O6 + 6O2 + 6H2O
(4) 6CO2 + 12H2O C6H12O6 + 6O2 + H2O
(1) 6CO2 + 6H2O C6H12O6 + 6H2O + 6O2
(2) 6CO2 + 6H2O C6H12O6 + 6O2
(3) 6CO2 + 12H2O C6H12O6 + 6O2 + 6H2O
(4) 6CO2 + 12H2O C6H12O6 + 6O2 + H2O
Which of the following statement is incorrect?
| 1. | Oxygen is released from water |
| 2. | Photosynthesis is a single step reaction |
| 3. | Action spectrum of photosynthesis resembles roughly the absorption spectra of chlorophyll a and b. |
| 4. | In plants glucose is stored as starch. |
Where does photosynthesis takes place?
1. in green leaves
2. in green parts of plant
3. in leaves
4. in complete plant
Identify a,b,c and d labellings in the following diagram.
1. i - stroma lamella; ii- thylakoid; iii-stroma; iv-genetic material
2. i- stroma lamella; ii- grana; iii-stroma; iv-starch granule
3. i- grana; ii- lamella; iii-stroma; iv-starch granule
4. i- stroma lamella; ii- grana; iii-cytoplasm; iv-starch granule
| Column I | Column II | ||
| i. | grana | 1. | dark reaction |
| 2. | light reaction | ||
| ii. | stroma | 3. | synthesis of ATP and NADPH+H+ |
| 4. | synthesis of sugar |
| 1. | i-b, c; ii-a, 4. |
| 2. | i-a, d; ii-b, 3. |
| 3. | i-b, d; ii-a,3. |
| 4. | i-b; ii-a, c, 4. |
How many statements are correct?
| i. | Products of dark reaction are substrates of light reaction. |
| ii. | Products of light reaction are substrates of dark reaction. |
| iii. | In the stroma, enzymatic reactions incorporate CO2 into the plant leading to the synthesis of sugar. |
| iv. | Dark reactions are directly light-driven. |
| v. | Chloroplast is a single membranous organelle. |
1. 2
2. 3
3. 4
4. 1
After performing the chromatographic separation of a plant leaf, experimentor found bright or blue green colour in the chromatogram. Then this pigment should be-
1. xanthophyll
2. carotenoid
3. chlorophyll a
4. chlorophyll b
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