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STD 11 - 6. Anatomy flowering plants — BIOLOGY STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceBIOLOGYSTD 11 - 6. Anatomy flowering plants1 Mark
MCQ
A mature sieve tube differs from vessel in
  • A
    Being nearly dead
  • B
    Lacking cytoplasm
  • C
    Lacking a functional nucleus
  • ✓
    Absence of lignified walls
✓

Answer

Correct option: D.
Absence of lignified walls
d
(d)The walls of vessels are lignified and hard and not very thick. Sieve tubes have thin cellulose walls.

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