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How do cells keep us healthy? - Coggle Diagram
How do cells keep us healthy?
Cell membrane
Phospholipid bilayer
Small uncharged molecules pass through easily
Larger charged molecules have harder time passing through
Carbohydrates and proteins on outside of cell help send and receive signals
Passive Transport
Moves with concentration gradient
No energy needed
Active Transport
Energy required
Moves against concentration gradient
Ways of transport
Channel protein
Facilitated diffusion and doesn't need energy
Ex: Aquaporin
Carrier protein
Helps in active transport and requires energy
Ex: Sodium potassium pump
Osmosis
Movement of water across cell membrane
Hypertonic solution
More solute outside - cell shrinks
Hypotonic solution
More solute inside - cell swells and can burst
Isotonic solution
Cell is balanced