Lab 3 - Cell Transport Flashcards
Passive Transport
Movement of substance with concentration gradient
No energy required
Uses kinetic energy of vibrating cells
Brownian Movement
Type of passive transport
Random movement of microscopic particles due to vibrations
Diffusion
Type of passive transport
Net movement of particles from high concentration to low concentration
Both solute and solvent move
Facilitated Diffusion
Integral proteins carry molecules through
Passive transport
Osmosis
Type of passive transport
Movement of a solvent through semipermeable membrane from low solute to high solute concentration
Hypertonic
Has more solutes
Water moves toward it
If a cell is hypertonic, water will flood it until it explodes (hemolysis)
Hypotonic
Has less solutes
If a cell is hypotonic, water will flow out and cell will shrivel (crenation)
Filtration
movement of solvents and solutes through selectively permeable membrane by gravity or mechanical pressure
Vesicular Transport
Active transport
Endo or Exocytosis
Endocytosis
Pinocytosis: Cell-drinking, fluid phase
Phagocytosis: cell-eating, large particles
Receptor-mediated Endocytosis: if triggered, invaginates