Question

The xylem in the plants is responsible for
A. Transport of water
B. Transport of food
C. Transport of amino acids
D. Transport of oxygen

Answer 1

Hint: Vascular tissues in plants are made up of xylem and phloem. The transportation carried out by xylem is passive and in a unidirectional manner i.e., from roots to the stem and leaves of the plant. The content that is transported by the xylem contains inorganic ions and liquids known as the xylem sap.

Complete answer:
Option (A) is correct. Xylem is a vascular tissue that is composed of tracheids, vessels, xylem parenchyma, and xylem fibers. The vessels and tracheids form channels that allow the passage of water and minerals present in the soil to different parts of the plant. Hence, the role of xylem in plants is to transport water to different parts of the plant after being absorbed by the root hairs from the soil.
Option (B) is incorrect. Phloem is a vascular tissue that is responsible for translocating food synthesized in photosynthetic parts of the plant to other parts of the plant that require it.
Option (C) is incorrect. Xylem in plants is responsible for the transport of water but not for the transport of amino acids.
Option (D) is incorrect. The role of xylem tissue in plants is to transport water and minerals but not to transport oxygen. Plants do not require oxygen instead they produce oxygen through the process of photosynthesis.

Hence, the correct answer is option (A).

Note: The transport of water is carried out by xylem tissues in plants with the aid of transpiration pull. This pull helps in the upward movement of water through xylem tissues i.e., vessels and tracheids and thereby providing water to the stem and leaves from the roots of the plant.