Flashcard: Cell Transport Mechanisms — 10 carte

Endocytosis — role?

Engulfs material into cell via membrane folding.

Cell transport — definition?

Movement of molecules across membranes.

Tonicity — effect?

Determines cell volume changes by water movement.

Passive vs active transport — difference?

Passive: no energy; active: requires energy.

Passive transport — definition?

Molecule movement without energy, down gradient.

Osmosis — water movement?

Water moves from low to high solute concentration.

Transport proteins — role?

Facilitate movement of large/charged molecules.

Endocytosis — process?

Bulk intake of materials into cell with vesicles.

Tonicity — cell volume effect?

Determines water flow and cell size change.

Facilitated diffusion — mechanism?

Uses specific proteins for large/charged molecules.