Introduction to Pharmacology

Question 1

Describe the 3 elements of a cell membrane

Answer 1

1- has phospholipid bilayer that regulated what goes in and out of the cell
2- bilayer has HYDROPHILIC HEAD
3 - has HYDROPHOBIC TAIL

Question 2

Describe Passive Transport

Answer 2

substances move DOWN the concentration gradient without energy

Question 3

Describe active transport

Answer 3

Substances require energy in form of ATP to move across concentration gradient

Question 4

Describe diffusion

Answer 4

Lipid solubles pass through membrane as long as they are small enough

Question 5

Describe facilitated diffusion

Answer 5

when lipid soluble ions are too big to pass, they require transport proteins (carrier proteins) to pass through

Question 6

Describe Osmosis

Answer 6

the movement of water up and down the concentration gradient