proteins

Question 1

alpha helix (protein)

Answer 1

An organised folded secondary structure of proteins

Question 2

Beta-pleated sheet (protein)

Answer 2

An organised folded secondary structure of proteins

Question 3

Carboxyl group (amino acid)

Answer 3

The functional group on amino acid molecules that contains a hydroxyl group (OH) and an oxygen double-bonded to a carbon atom.

Question 4

Condensation reaction

Answer 4

A reaction where two monomers join to form a larger molecule, producing water as a by-product.

Question 5

Peptide bond

Answer 5

The chemical bond linking two amino acids.

Question 6

Polypeptide

Answer 6

A long chain of amino acids. Proteins can be made of one or many polypeptides.

Question 7

Primary structure - protein

Answer 7

The first level of protein structure, which refers to the sequence of amino acids in a polypeptide chain.

Question 8

Quarternary structure - protein

Answer 8

The level of protein structure where multiple polypeptide chains bond together, or other non-protein groups are added to form a fully functional protein.

Question 9

R-group

Answer 9

The variable portion of an amino acid molecule. It can be one of twenty variations and determines the identity of the amino acid.

Question 10

Random coil - protein

Answer 10

An irregular secondary structure of proteins that is neither an alpha helix nor a beta-pleated sheet.

Question 11

Secondary structure

Answer 11

The level of protein structure where the amino acid chain forms either alpha-helices, beta-pleated sheets, or random coils.