Proteins Flashcards
What functional groups do all amino acids have?
Carboxyl and amino
What is the R-group?
The part of amino acids that is different.
What is another name for the R-group?
The side chain
What is primary structure?
The sequence and order of polypeptides
What are amino acids held together by?
Peptide bonds
What is secondary structure?
Partial folding of proteins
What folds are distinctive of secondary structure?
Alpha helices and beta pleated sheets
What happens to create tertiary structure?
side chains interact
Nonpolar side chains will fold
into the inside of a protein
Polar amino acids will fold
to the outside of a protein
What is quaternary structure?
Multiple tertiary structures
What are some functions of proteins?
Storage, transport, movement, identification, communication
What is denaturation?
the unfolding of a protein
Denaturation disrupts H bonds and
ionic bonds
Mutations in DNA change the
primary structure
