Xylem tissue forms a tubular passage to transport water and mineral salts from the roots to the aerial parts of a plant. It consists of different types of cells.

P. Sieve tubes and companion cells
Q. Wood parenchyma and wood fibres
R. Tracheids and vessels

Which of the following are xylem components?

1. Only P
2. Only P and R
3. Only Q and R
4. All P, Q and R

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): Transportation of water in plants from roots to leaves is carried out by the conducting tissue phloem.

Reason (R): Roots absorb water and minerals from the soil which are transported to leaves for various metabolic activities like photosynthesis, transpiration, respiration, etc.

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.