Transportation

Question 1

Diffusion is the …

Answer 1

movement of particles from a high concentration to a low

concentration.

Question 2

Rate of diffusion can be changed by altering …

Answer 2

concentration gradient, temperature and
Surface area

Question 3

For multicellular organisms, surfaces and organ systems are specialised for

Answer 3

specialised for exchanging materials

Question 4

The effectiveness of an exchange surface is increased by 5 things:

Answer 4

1,Having a large surface area

ii. Thin membrane
iii. Efficient blood supply (in animals)
iv. Being ventilated (in animals for gas exchange)

Question 5

Osmosis is the … movement of …

Answer 5

Passive, water,

Question 6

Osmosis is … concentration to … concentration

Answer 6

High, low

Question 7

Active transport uses … from … to transport substances across a … from … concentration to … concetration

Answer 7

energy, respiration, membrane, low, high

Question 8

Active transport is used in … … cells and the small … for the absorption of
nutrients.

Answer 8

Root hair, intestine