Vocab 1/8

Question 1

facilitated diffusion

Answer 1

uses transport proteins to move other ions and small molecules across the plasma membrane

Question 2

osmosis

Answer 2

diffusion of water across a selectively permeable membrane

Question 3

isotonic

Answer 3

when a cell is in a solution that has the same concentration of water and solutes as its cytoplasm

Question 4

hypotonic

Answer 4

when a cell is in a solution that has a lower concentration of solute

Question 5

diffusion

Answer 5

net movement of particles from an area where there are many particles of a substance to an area where there are fewer particles

Question 6

hypertonic

Answer 6

concentration of solute outside the cell is higher than inside

Question 7

active transport

Answer 7

movement of substances across the plasma membrane against a concentration gradient that requires energy

Question 8

endocytosis

Answer 8

moves large particles into the cell when the plasma membrane surrounds it and then pinches away from the rest of the membrane and enters the cell

Question 9

exocytosis

Answer 9

opposite of endocytosis; excretes substances out of the cell

Question 10

dynamic equilibrium

Answer 10

continuous movement with no overall change