Which feature of xylem vessels prevents them collapsing?

  1. Walls thickened with lignin
  2. Living cytoplasm
  3. Cross walls
  4. Chloroplasts
Answer

A) Walls thickened with lignin

Lignin strengthens the walls. O Level Biology · Topic 7 Transport in Flowering Plants · 7.2 Transpiration and translocation

Biology MCQ · More O Level Biology: Transport in Flowering Plants MCQs · Practise