Diffusion and Active Transport

Question 1

What is diffusion?

Answer 1

The net movement of particles from a region of high concentration to a region of low concentration

Question 2

What does permeable mean?

Answer 2

Lets things through

Question 3

What are 3 factors that can affect the rate of diffusion?

Answer 3

-Temperature
-Surface area of membrane
-Difference in concentration

Question 4

What is Active Transport?

Answer 4

The net movement of particles from a region of low concentration to a region of high concentration which requires energy from respiration

Question 5

What is the difference between Diffusion and Active Transport?

Answer 5

Diffusion is from a high to low concentration whereas Active Transport is from a low to high concentration and requires energy

Question 6

What are substances transported by Diffusion?

Answer 6

Particles, oxygen

Question 7

What are substances transported by Active Transport?

Answer 7

Glucose, aminoacids

Question 8

What is Osmosis?

Answer 8

The net movement of water molecules from a dilute to a more concentrated solution across a partially-permeable membrane

Question 9

What is Pure Water?

Answer 9

Only water molecules

Question 10

What is a dilute solution?

Answer 10

Has a high concentration of water molecules