3.6 Structure Of Protiens Flashcards
What molecules are peptides and polymers made up of
Amino acids
What do proteins consist of
One or more polypeptides arranged as complex macromolecules
What elements do all proteins contain
Carbon, oxygen, hydrogen and nitrogen
What causes differences in the amino acids
R-groups
How does the synthesis of peptides take place
Amino acids join when the amine and carboxylic acid groups connected to the central carbon atoms react
How are peptide bonds formed
It is formed during a condensation reaction between amino acids hydroxyl in the carboxylic group of one amino acid and a hydrogen in the Amine group of another
What is the resulting compound of the synthesis of peptides
A dipeptide
What is formed when many amino acids are joined together by peptide bonds
A polypeptide
What are the levels of protein structure
Primary, secondary, tertiary
What is the primary structure
He sequence in which the amino acids are joined
How is the primary structure sequence directed
Directed by information carried with DNA
In the primary structure what do amino acids influence
They influence how the polypeptide folds to give the protein it’s final shape determining its function
What are the only bonds involved in the primary structure of a protein
Peptide bonds
What interacts in the secondary structure
The oxygen, hydrogen and nitrogen atoms of the basic repeating structure interact
What other bonds may form within the amino acid
Secondary structure
Hydrogen bonds
