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Biology Honors

Bio Honors

TermDefinition
1. Cell Membrane Protects the cell and regulates what enters and leaves the cell.
2. Polar Phosphate head that faces the outside and inside of cell, freely interacting with water
3. Non-Polar Fatty acid tails, attached to phosphate head that remain facing the inside of the cell membrane, avoiding water in and out of the cell.
4. Hydrophobic Scared of water.
5. Hydrophilic water loving.
6.Fluid Mosaic Flexible lipid bilayer with proteins embedded.
7. Simple Diffusion Small molecules like oxygen, water and carbon dioxide can move thru the lipid bilayer from high to low concentration.
8.Facilitated Diffusion Molecules travel from high to low, through channel protein.
9. Semi-Permeable Lets SOME things pass thru.
10. Equilibrium Concentration is the same throughout the system.
11. Active Transport Uses ATP energy to move molecules across the membrane.
12.Passive Transport Does not require energy to move molecules move molecules across the membrane.
13. Channel Protein Protein that allows certain molecules to pass In and out of cell, from high to low concentration.
14. Protein Pump Protein that allows specific molecules in and out cell, from low to high concentration, and uses ATP.
Created by: Krystal Romero