biology

15 cards·by TAT4811

Requires energy to transport protiens across a cell membrane

active transport

Difference in the number of molecules of a given substance

Concentration Gradient

Two fluids with identical solute concentration

Isotonic Solution

Requires no energy to move a concentrationgradient across the cell membrane

Passive transport

Controls what enters and leaves the cell

selective permeability

speeds up chemical reactions

enzymes

cell expels vesicles content to extrocellular fluid

exocytosis

Concentration of two lfuids separated by a selectively permable membrane

tonocity

Fluid that had a low overall solute concentration

hypotonic soulution

fluid that has a high solute concentration

hypertonic solution

Diffusion of water

osmosis

lipid with a phosphate group

phospholipid

Spreading of molecules

Diffusion

Cell takes in small amount of extracellular fluid

endocytosis

Pathway which a cell engulf's particles.

phagocytosis