2.5 Proteins Flashcards
What is an amino group?
A basic group from which the amino part of the name amino acid is derived?
What are the four different chemical groups attached to the carbon of an amino acid?
Amino group
Carboxyl group
Hydrogen atom
R group
What is the structure of an amino group?
-NH2
What is a carboxyl group?
An acidic group which gives the acid part of the name amino acid.
What is the structure of the carboxyl group?
-COOH
What is the R group of an amino acid?
A variety of different chemical groups. Each amino acid has a different amino acid.
Amino acids combine to form
A dipeptide
The name of the reaction that allows two amino acids to combine is a
Condensation reaction
The process of many amino acid monomers joining together is called
Polymerisation
A chain of many hundreds of amino acids is called a
Polypeptide
The sequence of amino acids in a polypeptide chain forms the
Primary structure
The 3 main bonds maintaining the tertiary structure are
Disulfide bonds
Ionic bonds
Hydrogen bonds
Disulfide bonds are
Fairly strong and therefore not easily broken down
Ionic bonds are
Formed between any carboxyl and amino groups. They are weak and can be broken by changes in pH
Hydrogen bonds in proteins are
Numerous but easily broken
