What is osmoregulation? Which organ of the plant body helps in osmoregulation? Hence explain Transpirational Pull. [3 MARKS]
What is osmoregulation? Which organ of the plant body helps in osmoregulation? Hence explain Transpirational Pull. [3 MARKS]
Definition: 1 Mark
Naming and explanation : 2 Marks
Osmoregulation is the active regulation of the osmotic pressure of an organism's body fluids to maintain the fluid balance in its body.
The stomatal opening in the leaves of the plant body by the systematic control of a phytohormone called Abscisic acid that helps in osmoregulation of a plant body.
It decides when the stomatal pores need to stay open and when it needs to close.
Transpiration pull is the mechanism by which trees draw water through their roots. Transpiration occurs when the leaves of a tree allow water to exit into the air by means of tiny holes called stomata. When the water exits the leaves, the combination of capillary action, cohesion and adhesion draws more water up through the plant's roots to replace the released water.
Definition: 1 Mark
Naming and explanation : 2 Marks
Osmoregulation is the active regulation of the osmotic pressure of an organism's body fluids to maintain the fluid balance in its body.
The stomatal opening in the leaves of the plant body by the systematic control of a phytohormone called Abscisic acid that helps in osmoregulation of a plant body.
It decides when the stomatal pores need to stay open and when it needs to close.
Transpiration pull is the mechanism by which trees draw water through their roots. Transpiration occurs when the leaves of a tree allow water to exit into the air by means of tiny holes called stomata. When the water exits the leaves, the combination of capillary action, cohesion and adhesion draws more water up through the plant's roots to replace the released water.
