Q10.
They are pipe-like, consisting of a group of
specialised cells. They transport substances
and form a two-way traffic in plants. Which of
the following terms qualify for the features
mentioned above?
(a) Xylem tissue
(b) Vascular tissue
(C) Root hairs
(d) Phloem tissue
Answers
Required Correct Answer:
Option D: Phloem tissue
Explanation:
The phloem tissue which is present in plants can conduct the food prepared by the leaves in both upward and downward direction. They have a pip-like structure and has specialized cells. All these terms and characteristics are similar to the structure of a phloem and hence it is the correct answer.
Knowledge Byes:
The Phloem Tissue:
The phloem tissue which is part of the vascular bundle is made up of sieve tubes, companion cells, phloem fibres and phloem parenchyma. They help to transport the food prepared by the leaves to all parts of the plants in all directions. All the constituent cells are living except the phloem fibres.
The Vascular Bundle:
The vascular bundle constitutes of two kinds of vessels - the xylem tissue and the phloem tissue. They are complex permanent tissues whose main function is to transport nutrients and water to the leaves from the roots [done by the xylem] and to transport the prepared food to all parts of the plant [done by the phloem].
The xylem tissue is dead while the phloem tissue is living.
Answer:
option D is the answer here