Breifly describe the cohesion-tension theory in plants?
-
Water evaporates from the cells and leaves the plant once the stomata open,
-
This creates a suction which pulls more water into the leaf
-
As water is cohesive due to hydrogen bonds, when one molecule moves other tend to follow, the whole column of the xylem moves upwards
-
Water enters through the roots
BQ
Related Biology A Level answers
All answers ▸Describe the structure of the blastocyst
What is the difference between interspecific competition and intraspecific competition?
Describe how the body adapts the solute pressure of the blood (thorough its use of ADH) after a person has drank a large volume of water.
Describe how the structure of glycogen allows it to perform its function and explain the advantages to animals of using glycogen as an energy store.