BIO 210 Chapter 2 Latest Update Graded A+

BIO 210 Chapter 2 Latest Update Graded A+ Proton Positive Charge Heavy Mass Election Negative Charge Light Mass Neutron No charge Heavy Mass Atomic Structure Proton, Neutron, and Election 4 Most Common Elements in the Body Carbon Oxygen Hydrogen Nitrogen Ionic Bond Formed from Cations and Anions Covalent Atoms share one or more pairs of electrons Polar Electrons shared unequally between atoms Nonpolar Electrons shared equally between atoms Hydrogen Bond Positive "end" of a polar molecule and negative "end" of a molecule attract to each other Cation Positively charged ion Anion Negatively charge ion Three factors that could increase the rate of a chemical reaction Temperature Concentrations Catalyst Acid pH less than 7 Base pH more than 7 Neutral Pure water pH of 7 Properties of Water Stabilizing body temp Protection Chemical reaction Transport