Question

The components of xylem which help in lateral conduction of water are

• A. Trachea
• B. Tracheids
• C. Xylem fibres
• D. Xylem parenchyma

Answer 1

The correct option is D

Xylem parenchyma

The correct option is D:

Explanation of the correct option:

1. Xylem Parenchyma is a component of xylem tissue.
2. They are the only living cells of the xylem.
3. The main functions of the Xylem Parenchyma are mainly involved in the storage of carbohydrates, fat, and water conduction.
4. They are present in both primary and secondary Xylem.
5. In the secondary Xylem, these cells are arranged both axially and radially.
6. The radially arranged Xylem Parenchyma arranges like a ray, radiating out from the common center that helps in lateral water conduction.

Explanation of incorrect options:

Option A:

1. Trachea or vessels are a row of elongated tubelike cells with a perforated end.
2. They are placed end to end.
3. They convey water and dissolved minerals from the root to the rest of the plant body and provide physical support.

Option B:

1. Tracheids are elongated tubelike cells with tapering non-perforated ends with hard and lignified walls.
2. They convey water and dissolved minerals from the root to the rest of the plant body and provide physical support.

Option C:

1. Xylem fibres are sclerenchymatous cells.
2. They are long, slender, pointed, and dead.
3. They aid the mechanical strength of the xylem and various organ of the plant body.

Final Answer: Thus, The components of the Xylem which help in lateral conduction of water are Xylem Parenchyma.