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A&P 1 Ch 2
Term | Definition |
---|---|
Proton | Positively charged subatomic particle |
Electron | Negatively charged subatomic particle |
Neutron | Neutral (no charge) subatomic particle |
C | symbol for Carbon |
H | symbol for Hydrogen |
N | symbol for Nitrogen |
O | symbol for Oxygen |
P | symbol for Phosphorous |
S | symbol for Sulfur |
Ca | symbol for Calcium |
Na | symbol for Sodium |
K | symbol for Potassium |
Cl | symbol for Chloride |
Fe | symbol for Iron |
I | symbol for Iodine |
Mg | symbol for Magnesium |
Compound | two different atoms chemically bonded |
Molecule | two atoms chemically bonded (may be same atoms) |
Cation | positively charged ion |
Anion | negatively charged ion |
Ionic bond | formed from cation and anion (transfer of electrons) |
Covalent bond | formed from shared pair of electrons |
Strongest bond | Covalent |
Weakest bond | Hydrogen |
Polar bond | Unequal number of shared electrons in covalent bond |
Organic molecule | has at least 2 Carbons |
Hydrophyllic | "water loving" water soluable |
Hydrophobic | Not water soluable ; fat soluable |
Active transport | requires ATP (Energy) |
Passive transport | does not require ATP |
Osmosis | passive transport of water |
Hypotonic | low concentration of solutes |
Hypertonic | high concentration of solutes |
Plasma membrane or cell membrane | phosphobilipid layer |
If pH is greater than 7 the solution is | basic or alkaline |
If pH is less than 7 the solution is | acidic |
If pH is 7 the solution is | neutral |
Diffusion | passive transport of a substance from an area of greater concentration to an area of lesser concentration |
Facilitated diffusion | passive transport (diffusion) of a substance using a carrier protein |
Ionic | Bond formed from cation and anion |