Cell Membrane Transport A + P Lab

Passive Transport

Moves substances across the selectively permeable plasma membrane without energy input - high to low concentration

Active Transport

Moves substances against the concentration gradient requiring cellular energy (ATP)

Simple Diffusion

The movement of small non polar molecules across the plama membrane along their concentration gradient - high to low.

Facilitated Diffusion

The movement of larger polar molecules across the plasma membrane with transport proteins along their concentration gradient - high to low.

Osmosis

The movement of water across the plasma membrane from an area of low solute concentration to high solute concentration.

Vesicular Transport

The movement of large molecules across the plasma membrane within vesicles.

Phagocytosis

Cell eats large particles/microorganisms by putting pseudopods on the particle/microorganism

Pinocytosis

The cell drinks the extracellular fluid and dissolved solutes by forming vesicles at the plasma membrane.

Receptor-Mediated Endocytosis

Endocytosis where target molecules bind to receptor proteins on the surface, triggering vesicle formation