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.

Which of the following is present in membrane of stroma lamellae?
1. NADP reductase
2. PS-I
3. PS-II
4. water splitting complex.

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. i-b, c;  ii-a, d.
2. i-a, d;  ii-b, c.
3. i-b, d; ii-a,c.
4. i-b;  ii-a, c, d.

The _____________ in the leaves have a large number of_________, which align themselves along the walls of the ____________, such that they get the __________quantity of the incident light.
1. chloroplasts, chlorophyll, chloroplasts, optimum.
2. mesophyll cells, chlorophyll, mesophyll cells, optimum.
3. mesophyll cells, chloroplasts, mesophyll cells, optimum.
4. mesophyll cells, chloroplasts, mesophyll cells, minimum.

Identify i, ii, iii and iv labellings in the following diagram :

All the following regarding the role of xanthophylls and carotenoids in photosynthesis are correct except:

Dark reaction in photosynthesis is called so because

1. It can occur in dark also

2. It does not depend directly on light energy

3. It cannot occur during day light

4. It occurs more rapidly at night