Transport Across the Membrane

Question 1

Diffusion

Answer 1

the tendency of a substance to move and spread out in space due to kinetic energy. PASSIVE. High to low concentration. Spontaneous. Moving randomly

Question 2

Facilitated diffusion

Answer 2

Uses both carrier proteins and channel proteins. PASSIVE. Goes with gradient.

Question 3

Active Transport

Answer 3

Uses specific integral proteins but the proteins go against the gradient…REQUIRES THE USE OF ATP

Question 4

Carrier Proteins

Answer 4

allow substances to bind to them and speeds up their diffusion thru the bilayer

Question 5

Channel Proteins

Answer 5

Form channels to help things pass thru the bilayer