AS Proteins

Identify the class of protein that act as biological catalysts

• Antibodies

• Enzymes

• Hormones

• Actin and myosin

State the bond that forms between two amino acids through a condensation reaction

Identify the portion of an amino acid that contains nitrogen

• R group

• Carboxylic acid

• Amino group

• Central carbon atom

A beta pleated sheet is an example of which level of protein structure complexity?

• Primary

• Secondary

• Tertiary

• Quaternary

State the reaction required to break the bond between two amino acids

Identify the bond that can form between R groups containing amino and carboxylic groups

• Hydrogen bond

• Disulfide bond

• Hydrophobic interactions

• Ionic bonds

Identify the main structural protein of animals

• Haemoglobin

• Keratin

• Insulin

• Collagen

State the term for proteins folded into a relatively spherical shape

Haemoglobin is an example of a protein which has which level of structural complexity?

• Primary

• Secondary

• Tertiary

• Quaternary

The secondary structure of proteins is due to which of the following?

• Hydrophobic interations

• Hydrogen bonds

• Disulfide bridges

• Ionic bonds