Multiple choice

In which group of plants is root pressure absent?

  1. Angiosperms

  2. Gymnosperms

  3. Short plants

  4. Deciduous trees

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Root pressure is absent in gymnosperms. Transpiration causes negative water vapour pressure in surrounding cells of a leaf. Once this happens, water is pulled into the leaves from surrounding vascular tissues.