1. WARM UP
In your IAN Notebook, list as many examples as you can think of under the following categories:
Fats
Sugars
Proteins
Genes

2. Because they’re awesome.
Functional Groups
Because they’re awesome.

3. What is a functional group?
A Functional Group is a group of atoms that give a larger molecule certain characteristics.
These are kind of like giving warriors different weapons,
the type of weapon that they have will determine their fighting style.

4. R-COOH How do we write them? Written out in the Molecular Formula
Drawn in the Structural Formula or
R-COOH
The ‘R’s indicate a spot where the Rest of the molecule would go

5. Hydroxyl Group (Alcohol)
Molecular Formula
Structural Formula
R-OH
Found in Alcohols
General Characteristics: Polar, Hydrophilic
Examples: Water, Ethyl Alcohol

6. R-COOH Carboxyl Group Found in Carboxylic Acids
Molecular Formula
Structural Formula
R-COOH
Found in Carboxylic Acids
General Characteristics: Polar, Hydrophilic, Weak Acid
Examples: Amino Acids, Acetic Acid (Vinegar)

7. R-CH3 Methyl Group R Found in Organic Hydrocarbons and Lipids
Molecular Formula
Structural Formula
R-CH3 R
Found in Organic Hydrocarbons and Lipids
General Characteristics: Nonpolar, Hydrophobic
Examples: Phospholipids, methyl alcohol or methanol, CH3OH (gasoline)

8. Amine Group
Molecular Formula
Structural Formula
R-NH2
Found in Amino Acids, the building blocks of proteins
General Characteristics: Polar, Hydrophilic, Weak Base
Example: Amino Acids

9. R-PO4 Phosphate Group Found in Nucleotides and Cell Membrane
Molecular Formula
Structural Formula
R-PO4
Found in Nucleotides and Cell Membrane
General Characteristics: Polar, Hydrophilic, Acid
Examples: ATP, DNA & RNA Nucleotides, Phospholipids

10. R-SH Sulfhydryl Group R Found in Thiols and certain Amino Acids
Molecular Formula
Structural Formula
R-SH R
Found in Thiols and certain Amino Acids
General Characteristics: Polar, Hydrophilic
Examples: Proteins (like Skunk Spray)

11. What functional groups do you see?
Methyl Groups!
Hydroxyl Groups!
Phosphate Group!

12. What functional groups do you see?
Amine Groups!!
Phosphate Groups!!
Methyl Group!!

13. What functional groups do you see?
Amine Groups!!
NH2CH2COOH
Carboxyl Groups!!
Sulfhydryl Group!!

14. Have you turned in your homework?
Your Solubility Curve Worksheet is due TODAY! You will only get full credit today.
You can turn it in tomorrow, but it will be 10 points off your grade.
If you don’t turn it in by tomorrow, I will ZAP you on Wednesday to do it in Lunch Detention on Thursday.