2.  Inorganic Compounds: from minerals or non- living source.  Organic Compounds: contain Carbon & come from a living thing.  Carbon can combine with other elements to form millions of compounds.  Simplest Organic Compound is CH 4 (Methane)

3. VOCABULARY ALERT!  Polymer : long chains of carbon molecules.  Monomer: the building block of a polymer. Examples: A bead necklace = Polymer Individual Bead = Monomer

4. Elements: C, H, O Ratio of H:O is 2:1 Building Blocks: Monosaccharides (simple sugars like glucose) Function: Energy and storage molecules Examples: Monosaccharides – Glucose(C 6 H 12 O 6 ) Disaccharides – lactose (in milk), sucrose (table sugar) Polysaccharides – starch, cellulose, glycogen

5. SIMPLE SUGARS (SUCROSE) STARCH (POTATO PLANTS STORE SUGAR IN THE ROOTS AS STARCH )

6. Elements: C, H, O Ratio of H:O is more than 2:1 Building Blocks: Fatty Acids Function: Energy storage Part of the Cell Membrane Examples: Beef Fat (C 15 H 112 O 6 ) Oils, Wax

7. OILS ARE LIQUID AT ROOM TEMPERATURE FATS ARE SOLID AT ROOM TEMPERATURE

8. DIFFERENT KINDS OF FATS CELL MEMBRANE

9. Elements: C, H, O, N, S Building Blocks: Amino Acids Function: Structural Molecules & Functional Molecules Examples: Muscle, skin, hair, fingernails Enzymes (speed up chemical reactions)

10. FINGER AND TOE NAILSMUSCLE CELLS

11. Elements: C, H, O, N, P Building Blocks: Nucleotides (a sugar, phosphate, & nitrogen base) Function: Stores and transmits hereditary info. Controls cell activity Makes proteins Examples: DNA (Deoxyribonucleic Acid) & RNA (Ribonucleic Acid)