Biochemistry Quiz on Proteins and Amino Acids

What is the primary function of enzymes?

• Store genetic information

• Transport nutrients

• Provide structural support

• Act as biological catalysts

Which amino acid is known for having a symmetric α-carbon?

• Cysteine

• Serine

• Glycine

• Alanine

What type of amino acids are Lysine and Arginine classified as?

• Basic amino acids

• Acidic amino acids

• Aromatic amino acids

• Neutral amino acids

Which of the following is a protective protein?

• Insulin

• Collagen

• Antibodies

• Hemoglobin

What is the general structure of an amino acid?

• A central carbon with a carboxylic acid, amino group, and side chain

• A ring structure with multiple carbon atoms

• A linear chain of glucose molecules

• A double helix of nucleotides

Which amino acid is classified as an imino acid?

• Threonine

• Serine

• Glycine

• Proline

What is the role of transport proteins?

• To catalyze biochemical reactions

• To transport substances in the body

• To protect against pathogens

• To provide structural integrity

Which of the following amino acids is branched-chain?

• Proline

• Glycine

• Valine

• Alanine

What type of bond joins amino acids together in proteins?

• Peptide bonds

• Ionic bonds

• Hydrogen bonds

• Covalent bonds

Which amino acid is known for containing sulfur?

• Lysine

• Serine

• Methionine

• Alanine