Proteins -Multiple Choice Questions Quiz

Interactive MCQs on “Proteins”:

Solve the following 10 questions. Only one option is correct. Click on the “Submit” button when done. Click on the “embed” button to use this quiz on your website. Click on “WhatsApp” to share this quiz.

Question 1: What is the primary structure of a protein?

(a) Three-dimensional shape
(b) Alpha-helix or beta-sheet structures
(c) Sequence of amino acids
(d) Hydrophobic or hydrophilic interactions

Question 2: Which of the following is not a function of proteins?

(a) Enzymatic catalysis
(b) Transport and storage of molecules
(c) Cellular communication and signaling
(d) Energy storage

Question 3: Which type of bond is responsible for stabilizing the secondary structure of a protein?

(a) Covalent bonds
(b) Hydrophobic interactions
(c) Hydrogen bonds
(d) Ionic bonds

Question 4: Which of the following is a protein that helps to regulate the cell cycle?

(a) Insulin
(b) Hemoglobin
(c) Cyclin
(d) Myosin

Question 5: Which of the following is an example of a fibrous protein?

(a) Collagen
(b) Myoglobin
(c) Hemoglobin
(d) Immunoglobulin

Question 6: Which of the following is an example of a post-translational modification of a protein?

(a) Folding into its final shape
(b) Translation from mRNA to protein
(c) Formation of peptide bonds between amino acids
(d) Addition of a phosphate group to a specific amino acid

Question 7: What is the role of chaperone proteins in the cell?

(a) To catalyze chemical reactions
(b) To transport proteins to their final destination
(c) To aid in the folding and assembly of other proteins
(d) To break down damaged or misfolded proteins

Question 8: Which of the following is a protein that is involved in muscle contraction?

(a) Collagen
(b) Myosin
(c) Insulin
(d) Keratin

Question 9: What is the quaternary structure of a protein?

(a) The linear sequence of amino acids
(b) The folding pattern of the protein chain
(c) The arrangement of multiple protein subunits in a complex
(d) The three-dimensional shape of the protein

Question 10: Which of the following is a protein that is involved in blood clotting?

(a) Insulin
(b) Fibrinogen
(c) Myoglobin
(d) Keratin