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A&P 1 Ch 2

TermDefinition
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
Created by: DrGreimel