membrane

Question 1

substances which can’t diffuse through the phospholipid

Answer 1

• large molecules
• ions
• polar molecules

Question 2

membrane protein functions

Answer 2

• transport
• receptors
• cell adhesion
• cell to cell recognition

Question 3

integral

Answer 3

hydrophobic
embedded in the phospholipid bilayer

Question 4

peripheral

Answer 4

hydrophilic proteins
attracted to either the surface of the integral or plasma membrane

Question 5

transport

Answer 5

allows ions and polar molecules to travel acorss the membrane

Question 6

receptors

Answer 6

binding peptide hormoes (insulin, neurotransmitters)

Question 7

simple diffusion

Answer 7

the random movement of particles from a high area of concentration to an area of low concentration until equilibrium is reached

Question 8

osmosis

Answer 8

the diffusion of water molecules from a dilute solution to a solution with a higher solute concentration

Question 9

facilitated diffusion

Answer 9

substances which can’t be diffused through the phospholipid bilayer need help from transport protein

Question 10

active transport

Answer 10

the movement of molecules and ions across a cell membrane from an area of low concentration to an area of high concentration using energy from respiration