6.3 Transport Cells

Question 1

What is passive diffusion?

Answer 1

passes directly through a membrane, nonpolar/uncharged

Question 2

What is facilitated diffusion?

Answer 2

has to pass though by a protein, polar/charged

Question 3

What is osmosis?

Answer 3

diffusion of water across a membrane

Question 4

What does hypertonic mean?

Answer 4

higher solute concentration

Question 5

What does hypotonic mean?

Answer 5

lower solute concentration

Question 6

What does isotonic mean?

Answer 6

same solute concentration

Question 7

What is active transport?

Answer 7

when molecules are moved against the concentration gradient

Question 8

What is endocytosis?

Answer 8

molecules enter the cell

Question 9

What is exocytosis?

Answer 9

molecules exit the cell

Question 10

When do molecules diffuse across the cell from high to low concentration?

Answer 10

simple/facilitated diffusion and osmosis

Question 11

When do molecules diffuse across the cell from low to high concentration?

Answer 11

active transport, a protein pump helps with this