Q1. Which type of bond stabilizes the secondary structure of proteins?A. Ionic bondB. Hydrogen bondC. Peptide bondD. Phosphodiester bond
Q2. Which of the following is an example of a storage polysaccharide?A. CelluloseB. ChitinC. GlycogenD. Peptidoglycan
Q4. Which of the following statements about enzymes is correct?A. Enzymes are consumed in reactions and cannot be reused.B. Enzymes work by increasing the activation energy of reactions.C. Enzymes provide an alternative reaction pathway with lower activation energy.D. All enzymes work efficiently at any temperature.
Q6. Which of the following elements is a component of all amino acids?A. PhosphorusB. NitrogenC. SulfurD. Chlorine
Q7. Which of the following is an example of a prosthetic group in an enzyme?A. HemeB. NAD+C. ATPD. Glucose
Q8. Which of the following biomolecules is NOT a polymer?A. ProteinB. LipidC. Nucleic acidD. Polysaccharide
Q10. Which of the following statements about proteins is incorrect?A. Proteins are composed of amino acids.B. Proteins store genetic information in cells.C. Proteins can function as enzymes.D. Proteins have structural roles in cells.