2.1.2 (m) Protein structure

When many large molecular sub-units join together to make one protein, this is known as the protein's...

• Primary structure

• Secondary structure

• Tertiary structure

• Quaternary structure

A protein's shape, which affects its function, is determined by its primary structure.

• True

• False

What intramolecular bonds hold a protein's secondary structure together?

• hydrogen

• peptide

• covalent

• ionic

Where can hydrophobic amino acids be found in a fully folded protein?

• Towards the inside of the molecule.

• Towards the outside of the molecule.

• Anywhere.

Which statement is true about disulphide bonds?

• Intermolecular bonds in tertiary structure.

• Intramolecular bonds in tertiary structure.

• Intermolecular bonds in quaternary structure.

• Intramolecular bonds in quaternary structure.

All proteins have a quaternary structure. T/F

• True

• False