cell structure and function

Question 1

what are the functions of the membrane

Answer 1

barrier
controls entry of materials
receives chemical and mechanical signals
transmits signals

Question 2

what is a solvent

Answer 2

doing the dissolving

Question 3

what is a solute

Answer 3

the material dissolved

Question 4

what is concentration

Answer 4

amount of solute in a given amount of solvent

Question 5

what does endocytosis do

Answer 5

import materials

Question 6

what does exocytosis do

Answer 6

export materials