6.2

Question 1

Simple diffusion vs facilitated diffusion vs active transport

Answer 1

SD:
- high to low
- small and nonpolar substances

FD:
- high to low
- small and polar/charged substances

AT:
- low to high
- small and polar/charged substances

Question 2

Explain methods for transporting materials against the CONCENTRATION GRADIENT

Answer 2

• makes ATP
  conformational SHAPE change transports SOLUTE from one side of membrane to other
• protein pump

Question 3

Larger macromolecules

Answer 3

uses vacuoles:
EXocytosis- out
ENdocytosis- in
-