1. BIOCHEMISTRY Water – inorganic (not living) chemical formula is H2O
75% of all cell’s mass.
b) Carbon Dioxide – inorganic CO2
Waste of cellular respiration
c) Carbon-Hydrogen Tetrahedron
CH4 (methane)
Base of all organic compounds

2. Organic Compounds All contain the elements: C (carbon) H (hydrogen)
O (oxygen)
Some may contain: N (nitrogen)
Four important groups which make up all living things are…
1. Carbohydrates contain C H O
2. Lipids contain C H O
3. Proteins contain C H O N
4. Nucleic Acids contain C H O N and P

3. Dehydration Synthesis
Molecular Structures
Monomer: the basic building block of a larger molecule. A small relatively simple molecule
Polymer: a large molecule made up of repeating units called monomers.
Polymers are made out of monomers by the chemical process of
Dehydration Synthesis

4. Polymers are broken down into their monomers by….
Hydrolysis