Cell Transport Flashcards
Hypotonic
The solution with the lesser concentration of solute
Isotonic
When the concentration of solutes outside and inside the cell is equal
Hypertonic
The solution with the greater concentration of solute
Active transport
Movement of particles against a concentration gradient
Requires ATP
Passive transport
The movement of particles from an area of higher concentration to an area of lower concentration
Doesn’t require ATP
Osmosis
Diffusion of water across a selectively permeable membrane
Diffusion
Movement from higher concentration to lower concentration
Facilitated diffusion
Transports larger ions and polar molecules
Channel proteins and carrier proteins
Carrier proteins
Specific shape, protein movement brings molecules in to cell
Cell membrane
Most important in maintaining homeostasis
Turgor pressure
pushes the plasma membrane against the cell wall of plant, bacteria, and fungi cells as well as those protist cells which have cell walls.