Multiple choice

The transpiration driven ascent of xylem sap depends mainly on the following physical properties of water

  1. Cohesion

  2. Adhesion

  3. Surface tension

  4. All

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

The cohesion-tension theory relies on cohesion (water-water attraction), adhesion (water-wall attraction), and surface tension to maintain the continuous water column during transpiration.