Proteins Quiz

What are proteins?

• Polymers of nucleic acids

• Polymers of amino acids

• Polymers of carbohydrates

• Polymers of lipids

How are amino acids linked together in proteins?

• By peptide bonds

• By hydrogen bonds

• By covalent bonds

• By ionic bonds

What makes one amino acid different from another?

• The amino group

• The carboxyl group

• The R group

• The central Carbon atom

Which of the following is NOT an essential amino acid?

• Leucine

• Valine

• Glycine

• Phenylalanine

What is the function of enzymes in proteins?

• Defense

• Transport

• Support

• Enzyme catalysis

What is the primary structure of a protein?

• The sequence of amino acids

• The folding of the polypeptide chain

• The arrangement of multiple polypeptide chains

• The interaction between different proteins

Which of the following is a secondary structure of a protein?

• Alpha helix

• Beta sheet

• Random coil

• All of the above

What is the quaternary structure of a protein?

• The sequence of amino acids

• The folding of the polypeptide chain

• The arrangement of multiple polypeptide chains

• The interaction between different proteins

What is the function of chaperone proteins?

• To assist in protein folding

• To transport proteins across the cell membrane

• To catalyze biochemical reactions

• To provide structural support to the cell

What is the denaturation of a protein?

• The breaking of peptide bonds

• The unfolding of the protein structure

• The degradation of amino acids

• The synthesis of new proteins