In which of the following plants,there will be no transpiration?

The trunk of a tree shrinks in the day due to

Water loss by vapour through stomata is known as:

Stomatal movement is not affected by

When an oak leaf stoma is open more widely,the most likely process involved is

Identify the purposes of transpiration.
$I -$ Transpiration creates a transpiration pull for absorption and transport in plants.
$II -$ It supplies water for photosynthesis.
$III -$ It transports minerals from the soil to all parts of the plant.
$IV -$ It cools leaf surfaces by $10-15^{\circ} C$ through evaporation.
$V -$ It maintains the shape and structure of plants by keeping cells turgid.