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• 19. Which of the following molecule can cross cell membranes freely?(A) Carbon dioxide(B) Na+(C) K+(
• 20. The allosteric enzyme PFK-1 (Phosphofructokinase-1) catalyzes the committed step of glycolysis.W
• 21. Which of the following pairs of amino acids could form a charge-charge interaction through their
• 22. NADPH is synthesized mainly in which of the following pathways?(A) Glycolysis(B) Pentose Phospha
• 23. The isoelectric point of tyrosine is_____________ .(PK1 = 2.2； pK2= 9.11； pKa = 10.07 of the sid
• 24. The disease gout is a disease of the joints, usually in males, caused by an elevated concentrati
• 25. Which of the following amino acids does not belong to glucogenic amino acid?(A) Ala(B) Arg(C) Cy
• 26. Which is not an enzyme required for glycolysis?(A) Hexokinase(B) Phosphofructokinase(C) Trioseph
• 27, Which of the following is not a post-translational modification of a protein?(A) Methylation(B)
• 28. Lecithin is composed of _________.(A) Glycerol + Fatty acid + Phosphoric acid + Serine(B) Glycer
• 29. Amino acid residues which are predominantly involved in the protein-DNA interaction are_________
• 30. What are bile salts?(A) Charged phospholipid(B) Esterified cholesterol(C) Hydrolyzed forms of tr
• 31. Where are the aged red blood cells captured and recycled in healthy adults?(A) Periarteriolar ly
• 32. The________provides the luminal lining of large-diameter conducting airway.(A) ciliated stratifi
• 33. Which of the following is absent from the wall of small-diameter (~ 1 mm) bronchioles?(A) Epithe
• 34. What is the general sequential steps of human urine production?(A) Filtration→ secretion → reabs
• 35. The sudden surge of ________a few hours before ovulation changes the enzymatic activities of the
• 36. Forward left heart failure will cause which of the following? (A) Reduced cardiac output (B) Pul
• 37. When you accidentally drip-infused an additional 250 mL of normal saline to a healthy individual
• 38. After stabilizing this patient via the emergency trauma surgeries, which of the following in thi
• 39. After the emergency surgeries, the plasma potassium level of this patient appeared slightly high
• 40. A man fell from a 1.5 m high platform and bumped the right side of his head directly against the
• 41. Which of the following statements about MHC I proteins is true?(A) They are found primarily on i
• 42. Which of the following is the visual evidence of genetic recombination during meiosis?(A) Centro
• 43. Mammals are homeostatic for all of the following EXCEPT(A) Body temperature(B) Blood glucose con