Diffusion, Osmosis And Active Transport

Question 1

How are substances transported in and out of cells using diffusion?

Answer 1

from an area of high concentration to an area of lower concentration, across the cell membrane. This movement doesn’t require energy

Question 2

How are substances transported in and out of cells using osmosis?

Answer 2

movement of water molecules across a partially permeable membrane from a region of higher water concentration (lower solute concentration) to a region of lower water concentration (higher solute concentration)

Question 3

How are substances transported in and out of cells using active transport?

Answer 3

moves substances across cell membranes against their concentration gradient, from areas of low concentration to areas of high concentration, using energy

Question 4

How to calculate percentage gain and loss of mass in osmosis?

Answer 4

((final mass - initial mass) / initial mass) * 100