Assertion (A): Plants release carbon dioxide and water vapour as by products during the process of photosynthesis.

Reason (R): Plants utilize glucose as raw material in the process of photosynthesis which is a rich source of carbon dioxide and water.

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 (A): The food prepared by leaves is transported to all parts of the plant except roots.

Reason (R): Roots are the underground parts of the plant which absorb food material from the soil.

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 (A): The movement of molecules from their lower concentration to a higher concentration requires energy in the form of ATP.

Reason (R): Active transport is the process during which root hairs of a plant absorb minerals from the soil.

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 (A): Nitrogen is the main constituent of all proteins which helps in the growth and development of plants.

Reason (R): Nitrogen is micronutrient, which means it is required in very small amounts by the plants. It is absorbed from the soil as a nutrient element or mineral.

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.