The raw material which is reduced during photosynthesis is :

1. Carbon dioxide
2. Glucose
3. Water
4. Oxygen

The optimum temperature for the process of photosynthesis is :

1. 53°C
2. 45°C
3. 25°C
4. 35°C

Assertion. Photosynthesis occurs in all parts of a green plant.

Reason. Chlorophyll is the green pigment which traps solar energy during daytime.

1. Both A and R are True
2. Both A and R are False
3. A is True and R is False.
4. A is False and R is True.

Assertion. Guard cells regulate the opening and closing of the stomatal aperture.

Reason. Guard cells contain chloroplasts and are mostly located on the lower surface of the leaves. Other cells of the lower epidermis do not contain chloroplasts.

1. Both A and R are True
2. Both A and R are False
3. A is True and R is False.
4. A is False and R is True.