1. FIBROUS & GLOBULAR PROTEINS

2. FIBROUS Shape long Solubility insoluble in water Main level of
organization secondary structure
*Function structural (they are
something)
*Examples collagen,keratin,myosin

3. GLOBULAR Shape tightly folded Solubility soluble in water
Main level of
organization tertiary structure & some
quaternary
Function functional ( they do
something)
*Examples hemoglobin, enzymes,
antibodies, hormones

4. PROTEIN FUNCTIONS
ENZYMES
HORMONES
DEFENSE
STRUCTURE
TRANSPORT