Biochemistry Part 2

Warm up 10/2:
1. Pass labs toward the center.
2. When is the next Exam?
a. When is the study guide due?
b. When is intervention?
3. When is your RAFT project Due?
Part II
Macromolecule Review
 Large carbon molecule chains are called Polymers
 Made up of smaller units called monomers
 Monomers  polymers (macromolecules)
1. Nucleic Acids: Contain C,H,O, N
 Monomer = nucleotide
 Nucleotides: made of 3 basic parts
 Phosphate group
 a sugar
 nitrogen containing base
Contain C, H, O, and N
Monomer= Amino acids
Same basic structure but differ at functional (R) group
20 amino acids
Forms peptide bonds
 Polymer is called a polypeptide.
 Monomer= monosaccharide (simple sugar)
 Made of C, H, and O and easily recognized by ring
structure but no N like in DNA!!
 2 monosaccharides = disaccharide
 3 or more monosaccharides = polysaccharide such
as starch or cellulose
Disaccharide 
3. Carbohydrates
 Function: broken down to provide quick
energy for cells
Example: sugars and starches (pastas,
breads, candy etc)
4. Lipids
 Monomer: Fatty Acids
 Functions
 Store Energy
 Make up cell membranes
 Used to make hormones
4. Lipids
 Made up of C, H, O
 Long and non polar
 Hydrophobic: does not dissolve in water
 Examples: fats, oils, phospholipids, steroids,
waxes, and pigments
 found in mayonnaise, ice cream, hot cheetos