Definitions

Question 1

Define transpiration

Answer 1

Transpiration is the loss (by evaporation) of water vapour from the leaves and other aerial parts of a plant.

Question 2

Define lenticels

Answer 2

Lenticels are openings in the stems of plants that allow gas exchange.

Question 3

Define cohesion

Answer 3

Cohesion is the sticking of similar molecules to each other.

Question 4

Define adhesion

Answer 4

Adhesion occurs when different molecules stick together.