1. Organic Compounds continued… 8SCIENCE: Thurs. Feb. 3/ Fri. Feb. 4

2. Review: What is an organic compound? Organic compound is anything with carbon in it What is a hydrocarbon? Compound that contains only hydrogen and carbon What are the two types of hydrocarbons? Saturated Unsaturated

3. Substituting hydrocarbons We can remove H atoms from C and substitute or replace these with a different element: Example: Cl – chlorine, Br – bromine We take off the H atoms and replace with Cl Trichloromethane:

4. Functional groups We can also replace the H (hydrogen atoms) with a GROUP of elements, called functional groups Each group changes the function and characteristics of the hydrocarbon 4 types to learn: OH COOH NH₂ NH₂ and COOH

5. Functional groups

6. Polymers If we put many of these organic compounds together, it is called a POLYMER Example: many amino acids bonded together creates a protein, which are important for all living things, including plant reproduction and processes How does this relate to plants? Plants make carbohydrates (sugars) for its food energy Carbon, oxygen and hydrogen are combined to make the compound, carbohydrates Many of these small “building blocks” of atoms are combined to create a polymer  carbohydrates!

7. Organic compounds = “molecules for life” Why are these compounds called “molecules for life”? Plants create these organic compounds These are nutrients that plants and other organisms need for their health and to survive