Define the following: (i) Osmosis (ii) Symbiotic (iii) Phototropism | web4study

Define the following: (i) Osmosis (ii) Symbiotic (iii) Phototropism



 

(i) Osmosis:

Osmosis is a process by which solvent molecules (water) diffuse across the selectively permeable membrane from a region of low solute concentration to high solute concentration.

 

(ii) Symbionts:

An association of two organisms in which both partners get benefits is called symbiosis. E.g. Nitrogen fining bacteria and roots of leguminous plants.

 

(iii) Phototropism:

It is the movement of the plant in response to the stimulus of unilateral light. Stems grow directly towards the light.


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