Q.19:- Bryophyte differ from pteridophyta in being
a) Non Vasculature b) Seeded c) Vasculature
d) Sprophytic
Answers
Bryophytes are embryophytes that are non-vascular i.e., they have no xylem and phloem. Pteridophytes are vascular plants i.e., plants with xylem and phloem, that reproduce and disperse via spores.
The dominant phase in bryophyte is gametophyte while the dominant phase in pteridophyte is sporophyte. Bryophytes have no true roots while pteridophyte have true roots. Bryophytes have no vascular tissues while pteridophytes have vascular tissues.
Therefore, the correct answer is option D.
Answer:
Option a) Non Vasculature
Bryophytes differ from Pteridophyta in being non-vascular.
Explanation:
- The division Bryophyta contains no specialised tissue for the conduction of water or other chemicals in its plants.
- These plants lack vascular tissue. While Pteridophytes possess vascular tissue i.e. xylem and phloem, specifically designed for water conduction and thus, are called- vascular cryptogams.
Thus, option a) is correct.
- Pteridophytes have distinct roots, stems, and leaves on their plant bodies. The main plant body is sporophytic (dominant phase). While in the case of Bryophytes, the dominant or main plant body is gametophytic. So they are non-sporophytic.
Thus, option d) is incorrect.
- Pteridophytes and bryophytes are both cryptogams, which means they don't have seeds (non-seeded).
So, option b) is incorrect.
- Bryophytes or the 'amphibians of the plant kingdom' lack vascular tissues i.e. xylem and phloem for water and mineral conduction. Thus, they are avascular.
Hence, option c) is incorrect.
Therefore, the most appropriate answer is option a) Non-Vasculature.
Know more about Bryophytes and Pteridophytes at:
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