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Anatomy of Flowering Plants — BIOLOGY STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceBIOLOGYAnatomy of Flowering Plants1 Mark
MCQ
Vessels occur in:
  • A
    All angiosperms, all gymnosperms and some pteridophytes.
  • B
    All angiosperms and some gymnosperms.
  • C
    Most angiosperms, a few gymnosperms and pteridophytes.
  • D
    All pteridophytes.
✓

Answer

  1. Most angiosperms, a few gymnosperms and pteridophytes.

Explanation:

A vessel element or vessel member (trachea) is one of the cell types found in xylem, the water conducting tissue of plants.

Vessel elements (tracheae) are typically found in flowering plants (angiosperms) and pteridophytes but absent from most gymnosperms such as conifers. 

So, the correct answer is 'Most angiosperms, a few gymnosperms and pteridophytes.'

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