Question

explain why transpiration is the inevitable consequence of gaseous exchange in land plants

Answer 1

http://passel.unl.edu/pages/informationmodule.php?idinformationmodule=1092853841&topicorder=6&maxto=8
this would help u.

Answer 2

When a leaf's guard cells become turgid, they push each other in the opposite direction and its stomata open, and water is lost.
This process is called transpiration.
In turn, more water is pulled through the plant from the roots.

The rate of transpiration is directly related to whether stomata are open or closed. Stomata account for only 1 percent of a leaf's surface but 90 percent of the water transpired.

Transpiration is a necessary process and uses about 90 percent of the water that enters a plant's roots. The other 10 percent is used in chemical reactions and in plant tissues. Transpiration is responsible for several things:

Transporting minerals from the soil throughout the plant.
Cooling the plant through evaporation.
Moving sugars and plant chemicals.
Maintaining turgor pressure.

The amount and rate of water loss depends on factors such as temperature, humidity, and wind or air movement.

Transpiration often is greatest in hot, dry (low relative humidity), windy weather.

The Stomata are meant for gaseous exchange , but transpiration also occurs when they are open.

Excessive transpiration coupled with inadequate water supply to the roots can lead to the death of the plant.But it cannot be prevented ; so it is an inevitable consequence of gaseous exchange.