Plasma Membrane

Question 0

permeable membrane

Answer 0

open to passage or penetration of substances

Question 1

plasma membrane

Answer 1

forms the cells flexible outer surface, separating the cells internal environment from the external environment
controls passage of materials into and out of the cell

Question 2

selectively permeable membrane

Answer 2

allows the entrance and exit of some substances

Question 3

cell membrane

Answer 3

includes protein, lipid, and carbohydrate molecules
heads of the molecule (hydrophilic - water soluble)
tails of the molecule (inhydrophili - insoluable in water

Question 4

simple diffusion

Answer 4

random movement of substances from region of higher concentration to that of lower concentration

Question 5

facilitated diffusion

Answer 5

movement of substances from region of higher concentration to that of lower concentration by carrier molecules

Question 6

osmosis

Answer 6

H2O molecules moves from higher to lower concentration across selectively permeable membranes

Question 7

active primary transport

Answer 7

energy from hydrolysis of ATP is used by carrier proteins to move solutes across membrane

Question 8

active secondary transport

Answer 8

indirectly uses energy obtained from the hydrolysis of ATP

Question 9

endocytosis

Answer 9

receptor mediated

membrane engulfs selected molecules combined with receptor protein

Question 10

phagocytosis

Answer 10

cells take in solid

important line of defense against invasion of disease-causing microorganisms

Question 11

bulk phase endocytosis

Answer 11

also called pinocytosis
cells take in tiny droplets of liquid
liquid becomes part of the cytoplasm

Question 12

exocytosis

Answer 12

reverse of endocytosis

vesicles fuse with membranes and release contents outside of the cell

Question 13

transcytosis

Answer 13

movement resulting from endocytosis on one side and exocytosis on the other