Q1. Which of the following components is found in lecithin, a major phospholipid?A. CholesterolB. GlycerolC. Phosphate groupD. Fatty acids
Q2. Which of the following statements about enzyme inhibition is correct?A. Competitive inhibitors bind to the enzyme's active site.B. Non-competitive inhibitors bind to the active site of the enzyme.C. All enzyme inhibition is irreversible.D. Enzyme inhibitors always increase enzyme activity.
Q3. Which of the following statements about polysaccharides is correct?A. Glycogen is more highly branched than starch.B. Cellulose is a storage polysaccharide in animals.C. Starch is a polymer of fructose.D. Chitin is found only in plants.
Q4. Which polysaccharide is found in bacterial cell walls?A. CelluloseB. ChitinC. PeptidoglycanD. Hyaluronic acid
Q5. Which of the following statements about proteins is incorrect?A. Proteins are made of amino acids linked by peptide bonds.B. Proteins can act as enzymes, structural components, and hormones.C. Proteins store genetic information.D. The structure of a protein determines its function.
Q6. Which of the following statements about carbohydrates is correct?A. Carbohydrates store and provide energy.B. Cellulose is a storage carbohydrate in humans.C. Carbohydrates contain nitrogen as a primary element.D. Starch is a polymer of ribose.
Q7. Which of the following elements is a major component of nucleic acids but is not found in carbohydrates?A. CarbonB. OxygenC. NitrogenD. Hydrogen
Q8. Which of the following bonds stabilizes the tertiary structure of proteins?A. Peptide bondB. Disulfide bondC. Phosphodiester bondD. Glycosidic bond
Q9. Which macromolecule forms the major component of the fungal cell wall?A. CelluloseB. ChitinC. PeptidoglycanD. Lignin
Q10. Which of the following statements about enzyme inhibitors is incorrect?A. Competitive inhibitors bind to the enzyme's active site.B. Non-competitive inhibitors bind to a site other than the active site.C. All enzyme inhibitors permanently deactivate enzymes.D. Enzyme inhibitors can be reversible or irreversible.