1. A plant cell placed in pure water would become:

    Turgid

    Flaccid

    Plasmolysed

    Burst

2. Passive transport requires energy.

    True

    False

3. A cell membrane is made up of 2 types of molecule, and lipids.

4. If an animal cell is transferred from a 2% salt solution to a 3% salt solution it will gain water by osmosis.

    True

    False

5. Active transport requires energy and can move molecules against the concentration gradient.

    True

    False

6. What term is used to describe a plant cell which has lost water by osmosis?

7. What will happen to blood cells placed in a strong salt solution?

    they will burst.

    they will shrivel up.

    they will become turgid.

    they will become plasmolysed.

8. Give an example of a gas which will diffuse into an animal cell naturally.

9. A contractile vacuole pumps water out of an animal cell.

    True

    False

10. A piece of potato tissue weighing 16g was placed in distilled water. 2 hours later it was reweighed and found to be 19.2g. What is its water gain expressed as a percentage?

    2%

    3.2%

    20%

    32%