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A) Related Keywords and definition

No Word Definition / keywords

1 Simple diffusion Net movement ofmolecules or ions from a region ofhigh

concentration to a region of lower concentration.

2 Osmosis Diffusion of water molecules from a region ofhigh water

concentration/ low solute concentration to a region of low

water concentration/ high solute .

3 Facilitated diffusion Refers to the movement of hydrophilic molecules or ions

across the plasma membrane down the concentration gradient

with the help of transport proteins.

4 Active transport Movement of molecules or ions from a region oflower

concentration to a region of higher concentration ( against

the concentration gradient) across the plasma membrane.

5 Hypertonic Contain a high concentration of solutes than that of the cell.

6 Hypotonic Contain a low concentration of solutes than that of the cell.

7 Isotonic Contain a same concentration of solutes than that of the cell.

8 Plasmolysis A shrinking of the cytoplasm in plant cells due to osmosis.

9 Haemolysis The bursting and the release of the contents of the cells into

the surroundings.

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c)

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