Cell Transport

Question 1

What is active transport?

Answer 1

Active transport is the movement of substances against the concentration gradient. Low to high concentration. Requires energy from respiration

Question 2

What is osmosis?

Answer 2

Osmosis is the movement of water molecules through a partially permeable membrane, from a dilute solution to a more concentrated solution

Question 3

What is diffusion?

Answer 3

Diffusion is the spreading out of particles from and area of high concentration to a area of low concentration
Equilibrium is met

Question 4

3 factors that affect diffusion…

Answer 4

1) concentration gradient
2) temperature
3) surface area to diffuse through

Question 5

How do you calculate percentage change?

Answer 5

Divide the larger number by the smaller, subtract 1 from result of division and x but 100

Question 6

What is the effect of isotonic solution on a plant and animal cell?

Answer 6

There will be no net flow of water the cells volume will remain stable

Question 7

What is the effect of hypertonic solution on cells?

Answer 7

The cell shrinks because it loses water