CSE Homeostasis and Transport Vocab

Front

Surrounds the cytoplasm, controlling entry and exit.

Back

Plasma Membrane

Front

Allows some substances to cross more easily than others

Back

Semipermeable

Front

Certain substances cannot pass through:

Back

Impermeable

Front

Line the outside of the membrane

Back

Hydrophilic

Front

Face each other in layers

Back

Hydrophobic

Front

Theory that early eukaryotic cells formed from simpler prokaryotes

Back

Endosymbiosis

Front

Amount of substance in a volume of solvent

Back

Concentration

Front

Gradual difference in substance concentration in a solution over distance.

Back

Concentration Gradient

Front

Movement of molecules/ions down a concentration gradient.

Back

Diffusion

Front

Gradient stops once reached:

Back

Equilibrium