Question

During winter, tree sap can sometimes freeze and cavitation (the formation of an air pocket) may occur. Which one of the following mechanisms of sap transport would you expect to be most immediately affected by cavitation? 1. symplast function
2. pressure flow (mass flow)
3. cohesion transpiration
4. root pressure
5. active transport

Answer 1

Answer:

Option 3. cohesion transpiration is the correct answer.

Explanation:

Plants release water through transpiration while cohesion is responsible for moving more water throughout the xylem. When the water evaporate through the stomata, more water is pulled from roots into stem and eventually reach the leaf this process is called transpiration-cohesion theory.  (More explanation in attached Picture)