Question

In which division of the following are vascular tissues present ? a) Thallophyta b)Bryophyta c) pteridophyta d) Fungi

Answer 1

Answer:

Among the following divisions,  Pteridophyta has vascular tissues.

Explanation:

• Pteridophytes are the oldest, seedless, first vascular cryptogams.

• These lower vascular land plants are called Tracheophytes because they possess a well-developed vascular system.

• In the xylem, vessels are absent (exception includes Selaginella and Equisetum) and in the phloem companion cells are absent.

• Since (a)Thallophyta, (b) Bryophyta and (d) Fungi belong to the lower plants (Thallophytes) which lack a well-developed and organised vascular system,

Option c) Pteridophyta is the correct and most appropriate answer.

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Answer 2

In c) pteridophyta the vascular tissues present.

Explanation for the answer:

• A pteridophyte is a vascular plant which disperses spores.
• They don't produce either flowers nor seeds so, they are sometimes referred to as "cryptogams" which means the mode of reproduction is hidden.
• They have a well-developed vascular system.
• Hence, the correct answer among all the options is option c) pteridophyta.

Explanation for the incorrect options:

• Thallophyta, Bryophyta and Fungi belong to the category of lower plants which lack a well-defined vascular system.

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