movement of cell in and out

Diffusion

movement of molecules from high concentration to low concentration (jitter back and forth)

Osmosis

movement of water thought a semipermeable membrane from high concentration to low concentration

Hypertonic

salt concentration higher outside of the cell than inside

Hypotonic

salt concentration inside the cell is higher than outside

Isotonic

salt concentration the same

Hypertrophy

increase in cell size beyond normal

Hyperplasia

increase in size of a structure because of an increase in the number of cells

Astrophy

decrease in size of cells

Aplasia

Failure of tissue to develop (dosent develop al all)

Hypolasia

incomplete or defective development of tissue (defective cells)

Phagocytosis

Engulfing the matter by surrounding it

Pinocytosis

to large for ATP material is absorbed through the cell wall the cell wall will invaginated and engulf the particles

Excretion

release of wast products

Secretion

release of useful products

irritability

ability to respond to a stimuli (nerve and muscle cells)

conductivity

ability to transmit an impule (nerve and muscle cells)

contractility

ability to shorten in one direction (muscles cells)