Biochemistry Basics Objectives: 1.Be able to read a Periodic Table 2.Identify elements and compounds needed by living organisms 3.How are compounds created? 4.Define organic and inorganic

Atomic Structure and the Periodic Table # of protons = - # of electrons = - # neutrons = P Phosphorus Atomic mass number (protons and neutrons) Atomic number (protons) Symbol Name

Elements found in the Human Body: ELEMENTPERCENTELEMENTPERCENT Oxygen 65 % Potassium 0.35 % Carbon 18 % Sulfur 0.25 % Hydrogen 10 % Sodium 0.15 % Nitrogen 3 % Magnesium 0.05 % Calcium 1.5 % Fluorine trace Phosphorus 1 % Chlorine trace

Compounds are created through the bonding of elements: Water - Carbon dioxide - O HH - OO C -

Skill: Reading & Writing Chemical Formulas SUBSTANCE CHEMICAL FORMULA COMPONENT TOTAL # ATOMS Water Salt Oxygen Gas Glucose Carbon dioxide H2OH2O - - NaCl - - CO C 6 H 12 O O2O2 - -

Organic vs. Inorganic Organic Relating to or derived from living matter. - Examples  sugars, proteins, fats, carbohydrates, and nucleic acids Inorganic - Examples  salts, water, carbon dioxide, oxygen