Question

define osmosis.Name its two types.what king of solutions are needed for the two types of osmosis to take place?

Answer 1

Osmosis is the movement of free water molecules across a semi-permeable membrane, down a concentration gradient.

1)when we keep a cell in a region of higher concentration(hypertonic solution), it swells up and finally bursts.

2)when we keep a cell in a region of lower concentration (hypotonic solution), it gets shrink.