Diffusion

Question 0

Facilitated Diffusion

Answer 0

High to Low Concentration
Large Molecules (e.g. Glucose)
Needs Proteins
No Energy

Question 1

Diffusion

Answer 1

High to Low Concentration
Small Molecules (e.g. Oxygen)
No Proteins
No Energy
Osmosis is an example of this

Question 2

Active Transport

Answer 2

Low to High Concentration
Molecules of low concentration outside the cell (e.g. Nitrates)
Needs Proteins
Needs Energy

Question 3

Examples of Diffusion:

Answer 3

• Oxygen entering the blood through alveoli
• Osmosis
• Carbon Dioxide leaving the blood and entering the air

Question 4

Examples of Facilitated Diffusion:

Answer 4

-Taking amino acids and glucose into the cell

Question 5

Examples of Active Transport:

Answer 5

• Uptake of glucose in the intestines.

- Marine fish have gills which can pump out salt.