Ap Bio 24.3

The bond between amino acids always involves the side chains.

False

The order of the amino acids in a peptide can be reversed and still represent the same peptide.

False

Glutamine

Gln

Isoleucine

Ile

Methionine

Met

Two examples of coenzyme?

Potassium and Zinc

Proline

Pro

What are enzymes?

Proteins that act as biological catalysts

What determines the physical and chemical properties of an amino acid?

The nature of the side chain groups

Tryptophan

Trp

A single protein can be made from separate polypeptide chains, held together by bonds between side chain groups.

True

Because an active site fits a specific substrate, each enzyme catalyzes only one chemical reaction.

True

What is the enzyme molecule joined to its substrate molecule called?

active site

The chemical and physiological properties of a protein are determined by its _________ sequence.

amino acid

What is a peptide?

any combination of amino acids in which the amino group of one amino acid is united with the carboxyl group of another amino acid

carbonic anhydrase

carbonic acid

What types of bonds maintain the 3-d shape of a folded protein?

hydrogen bonds

catalase

hydrogen peroxide

The bond between amino acids is called a ________ bond.

peptide

An ______ contains more than 10 amino acids, but an ______ has more than 100 amino acids.

polypeptide;protein

Three properties of a cataalyst

unchanged by the reaction, do not change equilibrium position of a chemical system,promote reactions

unrease

urea

The formula for peptides is written so that the free ______ group is on the left end and the free _______ group is on the right end.

Amino;Carboxyl

What is an amino acid ?

An amino acid is any compound that contains an amino group and a carboxyl group in the same molecule.

How many amino acids are found in living organisms?

20

What is a coenzyme?

A metal ion or small organic molecules that must be present for an enzyme catalazed reaction to occur.