1. Biomolecules

2. What are the 4 most commonly used types of atoms in biology?
H = Hydrogen (1 bond)
O = Oxygen (2 bonds)
N = Nitrogen (3 bonds)
C = Carbon (4 bonds)
HONC if you Biology!

3. - Atoms = smallest unit of “stuff” that behaves a certain way
- Molecules = 2 or more atoms that are chemically bonded together

4. Mono mer = one piece in a biomolecule
one piece ex.
Poly mer = big molecule, many pieces bonded together
many pieces ex.
Dehydration Synthesis = removes water to join monomers together
less water making ex →
Hydro lysis = adds water to cut apart monomers
water cut ex →

5. Biomolecule Category: Carbohydrates
- Atoms: C, H, O
- Monomers: simple sugars
Polymers: starches
cellulose
- Function: store energy

6. Biomolecule Category: Lipids - Atoms: many C, H, a few O
- Monomers: fatty acids
glycerol
Polymers: phospholipids
fats
saturated = solid at room temp
unsaturated = liquid at room temp
- Function: make cell membrane or
store lots of energy

7. Biomolecule Category: Proteins
- Atoms: C, H, O, N
- Monomers: amino acids
- Polymers: proteins
- Function: many jobs inside the cell, shape determines job

8. Proteins have specific shapes…

9. Biomolecule Category: Nucleic Acids
- Atoms: C, H, O, N, P
- Monomers: nucleotides
- Polymers: DNA, RNA
- Function: store info about
how to build the cell