Unit 2

Question 1

fluid mosaic model

Answer 1

cell membrane model that shows the components that influence permeability

Question 2

permeability

Answer 2

phospholipids, proteins, cholesterol

Question 3

additional membrane components

Answer 3

phospholipods, steroids, membrane proteins, glycolipids, glycoprotiens, integral protiens, peripheral protien, cholesterol

Question 4

active transport

Answer 4

requires energy, susbstance moves against concentration gradient (low to high)

Question 5

passive transport

Answer 5

no energy required, simple diffusion through membrane and ion channels (high to low)

Question 6

simple diffusion

Answer 6

small nonpolar/uncharged slip through

Question 7

facilitated diffusion

Answer 7

for ions and large molecules through channel proteins

Question 8

isotonic

Answer 8

same concentration of solvants and solutes (same osmolatiry)

Question 9

hypertonic

Answer 9

more dissolved solutes than solution (high osmolarity)

Question 10

hypotonic

Answer 10

fewer dissolves solutes than solvant (low osmolarity)