Sample Qs-Transpiration

Sample Question

SUGGESTED ANSWER

F1- Air movement/ Wind

E1-movement of air carries away water molecules that have diffused from the leaves.

E2-the faster the air movement / wind speed, the greater the rate of transpiration.

F2- Temperature

E3-rise in temperature increases the kinetic energy of water molecules

E4-increases the rate of evaporation (lowers the relative humidity of the air)

F3- Light intensity

E5-light intensity is increased, the rate of evaporation from a plant increases (not that light affects evaporation as such)

E6-but that it causes the stomata to open,

E7-thereby increasing water loss from the plant

F4- Relative humidity/Humidity

E8- High humidity surrounding the leaves reduce the evaporation of water from the stomata

E9-this causes transpiration to slow down

Courtesy from JPWP.