Proteins Flashcards
What is a protein?
polymer of many amino acids
What is the monomer of a protein?
amino acid
What is the polymer of a protein?
Polypeptide
What is a functional vs structural protein?
Funcitonal: performs speacial funcitons in the body
Structural: helps maintain size and shape of cells
examples of strcutural proteins
collagen, keratin
tissues
exmaples of functional proteins?
enzymes, antibodies
What makes up an amino acid?
- Carboxyl end (cooh)
- amino end (N with H)
- R group
how are amino acids the same/different?
R group changes it
carboxyl end and amino end the same
How do amino acids join together?
- Dehydration synthesis
- carboxyl end takes out H2O
- peptide bonds
Primary structure
sequence of amino acids
Secondary structure
bent molecule
how is the secondary structure formed?
H bonds between amino acids
Alpha helix shape or beta pleated sheet
Tetiary structure
- 3rd structure of protein
3 dimensional shape
How is the tertiary shape formed?
- R groups cause bends
- new bonds form (H, Cov, Ionic)
H bonds can be sensitive to temp changes
quatianary
diffrent tertiary configurations together
ex. hemoglobin
what happens if proteins chnage outside of it’s optimal temp range?
It become denatured making each structure level stop working
(breaks hydrogen bonds)
