MCAT Biology (Princeton Review) Exam 2026/2027 Updated Verified Questions and Solutions A+ Pass Guaranteed

MCAT Biology (Princeton Review)
Exam 2026/2027 Updated
Verified Questions and Solutions
A+ Pass Guaranteed

1. Maltose
- ANS - Glucose + Glucose



2. Sucrose
- ANS - Glucose + Fructose



3. Lactose
- ANS - Glucose + Galactose



4. Glycogen
- ANS - Animal glucose storage



5. Starch
- ANS - Plant glucose storage

,6. Cellulose
- ANS - Plant structure



7. Saturated Fatty Acids
- ANS - -Single bonds
8. -Solid at room temp.



9. Unsaturated Fatty Acids
- ANS - -Double bonds
10. -Liquid at room temp.



11. Terepenes
- ANS - Built from multiple isoprene units



12. Cholesterol
- ANS - -In cell membrane
13. -Steroid precursor
14. -Bile salts



15. Catalysts
- ANS - -Stabilize the transition states
16. -Reduce the activation energy

,17. Competitive Inhibition
- ANS - -Binds at active site
18. -No change in Vmax
19. -Increases Km



20. Non-Competitive Inhibition
- ANS - -Binds at allosteric site
21. -Decreases Vmax
22. -No change in Km



23. Uncompetitive Inhibition
- ANS - -Binds at allosteric site of ES complex
24. -Decreases Vmax
25. -Decreases Km



26. Mixed Inhibition
- ANS - -Binds at allosteric site of E along or ES complex
27. -Decreases Vmax
28. -Varied effects on Km



29. Glycolysis
- ANS - -Occurs in the cytosol
30. -O2 in not needed

, 31. PCD/Krebs Cycle
- ANS - -Occurs in the mitochondrial matrix
32. -O2 is indirectly needed



33. Electron Transport Chain/Oxidative Phosphorylation
- ANS - -Occurs in the mitochondrial inner membrane
34. -O2 is directly needed



35. Fermentation
- ANS - Pyruvate --> Ethanol (yeast) or Lactic Acid (muscle)



36. Glycogenesis
- ANS - -High blood glucose
37. -Insulin produced
38. -Glucose converted to glycogen
39. -Stored in liver and lesser extent in muscle



40. Glycogenolysis
- ANS - -Low blood glucose
41. -Glucagon produced
42. -Glycogen converted to glucose in the liver



43. Pentose Phosphate Pathway
- ANS - -Produces NADPH
44. -Reducing power