Protein biochemistry

What level of protein structure is the order and sequence of amino acids?

• Primary

• Secondary

• Tertiary

• Quaternary

What level of protein structure is the coiling into a helix, or folding into a sheet?

• Primary

• Secondary

• Tertiary

• Quaternary

What level of protein structure is the folding into a complex shape?

• Primary

• Secondary

• Tertiary

• Quaternary

What level of protein structure is seen in proteins with more than one polypeptide chain?

• Primary

• Secondary

• Tertiary

• Quaternary

What is the highest level of protein structure is seen in insulin?

• Primary

• Secondary

• Tertiary

• Quaternary

Which of these amino acids contains sulphur?

• Alanine

• Lysine

• Proline

• Cysteine

What bonds hold the secondary structure of proteins together?

• Hydrogen bonds

• Ionic bonds

• Peptide bonds

• hydrophobic interactions

What bonds hold the primary structure of proteins together?

• Hydrogen bonds

• Ionic bonds

• Peptide bonds

• hydrophobic interactions

What bonds hold the tertiary and quaternary structure of proteins together?

• Hydrogen bonds

• Ionic bonds

• Peptide bonds

• hydrophobic interactions

What levels of protein structure are caused by interactions between R groups?

• Primary

• Secondary

• Tertiary

• Quaternary