7.1 Flashcards
(10 cards)
What is always the same in amino acids?
All amino acids have a base carbon, an amino group (NH2), and a carboxyl (-HOOC)
What is different between amino acids?
The “R group” that does not attach to the spine of the protein.
What is primary structure?
The order of amino acids in a polypeptide.
Secondary?
The pattern of either Alpha Helixes or Beta Pleats in a protein.
Tertiary?
The pattern of folding caused by interactions between amino acid side chains.
Quaternary?
Multiple polypeptides bonded together.
What happens during denaturation?
Ionic and H bonds break apart, unfolding the protein.
How is tertiary structure determined?
Hydrophobic side chains bunch in the middle, cysteine side chains form covalent bonds with each other, acidic and basic side chains form bonds with each other, and hydrophilic side chains go to the outside.
What do enzymes do?
Catalyze reactions
What do infrastructure proteins do?
support and move molecules/cells throughout the body.