PCAT Cheat Sheet 2026

The 30 highest-yield PCAT facts, distilled from real exam questions. Print it, save it as a PDF, or study it here — free, no sign-up.

1. Which transport process requires ATP to move molecules against their concentration gradient? → Active transport
2. In the context of PCAT, what does evidence-based practice mean? → Integrating current best evidence with professional expertise
3. In PCAT science preparation, what does homeostasis refer to? → The tendency to maintain stable internal conditions
4. In PCAT preparation, which mathematical concept is foundational for problem-solving? → Understanding order of operations and algebraic reasoning
5. Which factor is most important when evaluating the quality of scientific research for PCAT? → Methodology, sample size, and peer review status
6. What is the role of a control group in scientific experiments related to PCAT? → To provide a baseline for comparison
7. Which nitrogenous base pairs with adenine in a DNA double helix? → Thymine
8. If a carrier mother (X^A X^a) and a normal father (X^A Y) have sons, what percentage of sons will express the X-linked recessive trait? → 50%
9. Which factor is most important when evaluating the quality of scientific research for PCAT? → Methodology, sample size, and peer review status
10. What does the mean of a data set represent in PCAT quantitative analysis? → The arithmetic average of all values
11. A drug with a narrow therapeutic index requires careful monitoring because: → The effective dose and the toxic dose are very close together
12. ACUTE : CHRONIC :: BENIGN : ? → Malignant
13. In incomplete dominance, what is the phenotype of a heterozygous individual? → An intermediate phenotype
14. In PCAT test preparation, what is the best approach to estimation problems? → Round to manageable numbers and calculate approximate answers
15. Which of the following would raise the blood's pH? → the digestion of a big meal
16. What is the primary unit of structure and function in living organisms studied in PCAT? → Cell
17. Hemoglobin has the strongest bonds with which of the following? → carbon monoxide
18. TACHYCARDIA : FAST :: BRADYCARDIA : ? → Slow
19. What is the primary unit of structure and function in living organisms studied in PCAT? → Cell
20. Which communication technique is most effective for conveying complex PCAT information? → Combining visual aids with clear verbal explanation
21. During sympathetic stimulation, which of the following would NOT happen? → dilation of intestinal blood vessels
22. Which scientific method step follows hypothesis formation? → Experimentation and testing
23. Which enzyme synthesizes new DNA strands by adding complementary nucleotides during replication? → DNA polymerase
24. Which organelle contains hydrolytic enzymes used to digest cellular waste, damaged organelles, and engulfed pathogens? → Lysosomes
25. The heart's rhythm is determined by: → SA node
26. A virulent phage infects by: → the lytic cycle
27. What is the primary function of the cytoskeleton? → Providing structural support and enabling cell movement
28. If the SA node stops operating, the heart will instantly stop: Is it true or false? → A) False
29. PHARMACIST : DISPENSARY :: SURGEON : ? → Operating room
30. Which element is essential in a well-written PCAT professional report? → Objective findings supported by data