Water moves up the xylem mainly by

  1. active transport
  2. transpiration pull and cohesion of water molecules
  3. osmosis in xylem vessels
  4. translocation
Answer

B) transpiration pull and cohesion of water molecules

Evaporation pulls a continuous column of water upwards. 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