Free PCAT AACP MCQs

Exam Name	Pharmacy College Admission Test (PCAT) Practice Exam – 2026 Updated
Exam Provider	Pearson Education, Inc. & American Association of Colleges of Pharmacy (AACP)
Exam Type	Pharmacy School Admission Test (Pre-Pharmacy Assessment)
Total Practice Questions	90 Advanced MCQs (Biology + Chemistry + Quantitative + Reading)
Exam Sections Covered	• Biology (Cell Biology, Genetics, Anatomy, Physiology) • General Chemistry (Reactions, Equilibrium, Thermodynamics) • Organic Chemistry (Functional Groups, Mechanisms, Reactions) • Quantitative Reasoning (Algebra, Probability, Word Problems) • Critical Reading (Comprehension & Analysis)
Questions in Real Exam	• Total: ~192 Questions • Biological Processes: 48 Questions • Chemical Processes: 48 Questions • Critical Reading: 48 Questions • Quantitative Reasoning: 48 Questions • Writing (Essay Section)
Exam Duration	• Total Time: ~3 Hours 30 Minutes • Includes multiple sections with time limits • Requires strong pacing and accuracy
Scoring	• Scaled Score: 200–600 • Composite percentile ranking provided • Competitive score: 400+
Question Format	• Multiple Choice Questions (MCQs) • Passage-based reading questions • Calculation and problem-solving questions • Conceptual science questions
Difficulty Level	Moderate to High (Conceptual + Multi-Subject + Time Pressure)
Key Focus Areas	• Cellular processes and physiology (Biology) • Acid-base, equilibrium, and kinetics (Gen Chem) • Reaction mechanisms and functional groups (Organic Chem) • Algebra, ratios, and probability (Quantitative) • Passage comprehension and inference (Reading)
Common Exam Traps	• Confusing similar biological pathways • Misinterpreting acid-base strength and equilibrium • Mixing up organic reactions (addition vs substitution) • Calculation errors under time pressure • Overthinking reading comprehension questions • Ignoring units and conversion errors in math problems
Skills Developed	• Scientific reasoning and critical thinking • Quantitative problem-solving skills • Data interpretation and analysis • Reading comprehension of scientific texts • Time management across multiple subjects • Application of interdisciplinary concepts
Study Strategy	• Focus on high-yield biology and chemistry topics • Practice quantitative problems daily • Take timed full-length practice exams • Strengthen weak areas through targeted review • Improve reading speed and comprehension strategies • Analyze mistakes to improve accuracy and performance
Best For	• Pre-pharmacy students • Applicants to pharmacy schools in the U.S. • Students pursuing careers in pharmaceutical sciences
Career Benefits	• Required for admission to many pharmacy schools • Strong scores improve acceptance chances • Demonstrates readiness for rigorous pharmacy programs • Opens pathway to Doctor of Pharmacy (PharmD) degree
Updated	2026 Latest Version – Based on Current PCAT Guidelines

1.

Which organelle is responsible for ATP production?
A. Ribosome
B. Mitochondria
C. Golgi apparatus
D. Lysosome

Answer: B
Rationale: Mitochondria generate ATP through cellular respiration, converting glucose into usable energy. They are essential for energy production in eukaryotic cells and are often called the powerhouse of the cell.

---

2.

Which phase includes DNA replication?
A. G1
B. S
C. G2
D. M

Answer: B
Rationale: DNA replication occurs during the S (synthesis) phase of the cell cycle, ensuring each daughter cell receives identical genetic material during division.

---

3.

Which has the lowest pH?
A. NaOH
B. HCl
C. NH₃
D. H₂O

Answer: B
Rationale: HCl is a strong acid that fully dissociates, producing a high concentration of H⁺ ions, resulting in a very low pH compared to bases or neutral substances.

---

4.

Which law relates gas volume and temperature?
A. Boyle’s Law
B. Charles’s Law
C. Dalton’s Law
D. Avogadro’s Law

Answer: B
Rationale: Charles’s Law states that gas volume is directly proportional to temperature at constant pressure, meaning volume increases as temperature rises.

---

5.

Which functional group is found in alcohols?
A. NH₂
B. COOH
C. OH
D. C=O

Answer: C
Rationale: Alcohols contain a hydroxyl (-OH) group attached to carbon, affecting polarity and reactivity.

---

6.

Which reaction adds hydrogen to a molecule?
A. Oxidation
B. Reduction
C. Elimination
D. Substitution

Answer: B
Rationale: Reduction involves gaining electrons or hydrogen atoms, commonly seen in hydrogenation reactions.

---

7.

What is the unit of energy?
A. Newton
B. Joule
C. Watt
D. Pascal

Answer: B
Rationale: The Joule is the SI unit of energy and represents work done when a force moves an object over a distance.

---

8.

What is velocity?
A. Distance
B. Speed
C. Speed with direction
D. Acceleration

Answer: C
Rationale: Velocity is a vector quantity including both magnitude and direction, unlike speed which is scalar.

---

9.

Which cell carries oxygen?
A. WBC
B. RBC
C. Platelet
D. Plasma

Answer: B
Rationale: Red blood cells contain hemoglobin, which binds oxygen and transports it throughout the body.

---

10.

Which organ filters blood?
A. Heart
B. Kidney
C. Liver
D. Lung

Answer: B
Rationale: The kidneys remove waste and excess substances from blood, maintaining fluid and electrolyte balance.

---

11.

Which is a strong base?
A. NH₃
B. HCl
C. NaOH
D. CH₃COOH

Answer: C
Rationale: NaOH fully dissociates in water, producing OH⁻ ions and making it a strong base.

---

12.

Which particle determines atomic number?
A. Electron
B. Proton
C. Neutron
D. Ion

Answer: B
Rationale: Atomic number equals the number of protons, which defines the element.

---

13.

Which compound is aromatic?
A. Methane
B. Benzene
C. Ethane
D. Propane

Answer: B
Rationale: Benzene is aromatic due to its cyclic structure and delocalized electrons following Huckel’s rule.

---

14.

Which functional group defines carboxylic acids?
A. OH
B. COOH
C. NH₂
D. C=O

Answer: B
Rationale: Carboxylic acids contain the COOH group, giving them acidic properties.

---

15.

What is acceleration?
A. Speed
B. Change in velocity
C. Distance
D. Force

Answer: B
Rationale: Acceleration measures how velocity changes over time.

---

16.

What is work?
A. Force
B. Force × distance
C. Energy
D. Velocity

Answer: B
Rationale: Work is defined as force applied over a distance.

---

17.

Which organelle synthesizes proteins?
A. Golgi
B. Ribosome
C. Lysosome
D. Nucleus

Answer: B
Rationale: Ribosomes translate mRNA into proteins essential for cellular function.

---

18.

Which molecule stores genetic information?
A. Protein
B. DNA
C. Lipid
D. Carbohydrate

Answer: B
Rationale: DNA stores hereditary information and directs protein synthesis.

---

19.

Which is oxidation?
A. Gain electrons
B. Loss electrons
C. Gain neutrons
D. Loss protons

Answer: B
Rationale: Oxidation is the loss of electrons during a reaction.

---

20.

Which is neutral pH?
A. 0
B. 7
C. 14
D. 10

Answer: B
Rationale: Neutral solutions have equal concentrations of H⁺ and OH⁻ ions.

---

21.

Which is a ketone?
A. COOH
B. C=O in middle
C. OH
D. NH₂

Answer: B
Rationale: Ketones have a carbonyl group bonded to two carbons.

---

22.

Which is an alkane formula?
A. CnH2n
B. CnH2n+2
C. CnH2n-2
D. CnHn

Answer: B
Rationale: Alkanes are saturated hydrocarbons with only single bonds.

---

23.

Which is the unit of power?
A. Joule
B. Watt
C. Newton
D. Pascal

Answer: B
Rationale: Power is measured in watts, representing energy per unit time.

---

24.

Which force pulls objects toward Earth?
A. Friction
B. Gravity
C. Tension
D. Normal

Answer: B
Rationale: Gravity attracts objects with mass toward Earth.

---

25.

Which system controls hormones?
A. Nervous
B. Endocrine
C. Circulatory
D. Digestive

Answer: B
Rationale: The endocrine system regulates body functions through hormones.

---

26.

Which cell produces antibodies?
A. T cell
B. B cell
C. RBC
D. Platelet

Answer: B
Rationale: B cells produce antibodies as part of immune defense.

---

27.

Which is an acid?
A. pH > 7
B. pH < 7
C. Neutral
D. Base

Answer: B
Rationale: Acids donate H⁺ ions and have pH less than 7.

---

28.

Which is an aldehyde?
A. COOH
B. C=O at end
C. NH₂
D. OH

Answer: B
Rationale: Aldehydes contain a terminal carbonyl group.

---

29.

Which is velocity formula?
A. d/t
B. F/m
C. mgh
D. mv

Answer: A
Rationale: Velocity equals distance divided by time.

---

30.

Which structure controls cell activities?
A. Cytoplasm
B. Nucleus
C. Membrane
D. Golgi

Answer: B
Rationale: The nucleus contains DNA and regulates cell functions.

31.

Which phase of mitosis separates sister chromatids?
A. Prophase
B. Metaphase
C. Anaphase
D. Telophase

Answer: C
Rationale: During anaphase, sister chromatids are pulled apart toward opposite poles by spindle fibers. This ensures each daughter cell receives an identical set of chromosomes, which is critical for proper cell division and genetic consistency.**

---

32.

Which molecule provides immediate energy for cellular processes?
A. DNA
B. ATP
C. RNA
D. Lipid

Answer: B
Rationale: ATP is the primary energy currency of the cell. It releases energy when its phosphate bonds are broken, powering cellular activities such as transport, synthesis, and muscle contraction.**

---

33.

Which gas law states pressure and volume are inversely related?
A. Charles’s Law
B. Boyle’s Law
C. Avogadro’s Law
D. Dalton’s Law

Answer: B
Rationale: Boyle’s Law states that pressure increases as volume decreases at constant temperature. This inverse relationship is fundamental in understanding gas behavior in confined systems.**

---

34.

Which type of bond forms between oppositely charged ions?
A. Covalent
B. Hydrogen
C. Ionic
D. Metallic

Answer: C
Rationale: Ionic bonds form when electrons are transferred between atoms, creating positively and negatively charged ions that attract each other strongly.**

---

35.

Which functional group is present in amines?
A. OH
B. NH₂
C. COOH
D. C=O

Answer: B
Rationale: Amines contain the amino group (-NH₂), which is basic and plays an important role in biological molecules such as amino acids and neurotransmitters.**

---

36.

Which reaction breaks polymers into monomers using water?
A. Dehydration
B. Hydrolysis
C. Oxidation
D. Reduction

Answer: B
Rationale: Hydrolysis uses water to break chemical bonds in larger molecules, such as proteins or carbohydrates, into smaller units during digestion.**

---

37.

What is the formula for momentum?
A. mv²
B. mgh
C. mv
D. Fd

Answer: C
Rationale: Momentum is calculated as mass multiplied by velocity (p = mv). It represents the quantity of motion an object possesses and is conserved in closed systems.**

---

38.

Which organelle is responsible for detoxification?
A. Golgi apparatus
B. Smooth ER
C. Ribosome
D. Nucleus

Answer: B
Rationale: The smooth endoplasmic reticulum detoxifies drugs and harmful substances, especially in liver cells, by modifying chemical structures for elimination.**

---

39.

Which structure transports water in plants?
A. Phloem
B. Xylem
C. Roots
D. Leaves

Answer: B
Rationale: Xylem transports water and minerals from roots to leaves through capillary action and transpiration pull, supporting plant structure and function.**

---

40.

Which is the SI unit of pressure?
A. Newton
B. Pascal
C. Joule
D. Watt

Answer: B
Rationale: Pressure is measured in Pascals (Pa), defined as force per unit area (N/m²).**

---

41.

Which reaction absorbs heat from surroundings?
A. Exothermic
B. Endothermic
C. Neutral
D. Spontaneous

Answer: B
Rationale: Endothermic reactions require energy input, absorbing heat from the environment to proceed.**

---

42.

Which organelle stores calcium in muscle cells?
A. Golgi
B. Sarcoplasmic reticulum
C. Lysosome
D. Nucleus

Answer: B
Rationale: The sarcoplasmic reticulum stores and releases calcium ions, which trigger muscle contraction by interacting with contractile proteins.**

---

43.

Which is a strong base?
A. NH₃
B. HCl
C. NaOH
D. CH₃COOH

Answer: C
Rationale: Sodium hydroxide fully dissociates in water, releasing OH⁻ ions and making it a strong base.**

---

44.

Which bond connects nucleotides in DNA?
A. Hydrogen
B. Peptide
C. Phosphodiester
D. Ionic

Answer: C
Rationale: Phosphodiester bonds link nucleotides along the DNA backbone, forming a stable chain of genetic material.**

---

45.

Which hormone decreases blood glucose levels?
A. Glucagon
B. Insulin
C. Cortisol
D. Epinephrine

Answer: B
Rationale: Insulin promotes glucose uptake into cells and storage as glycogen, lowering blood glucose levels.**

---

46.

Which is the formula for kinetic energy?
A. mv
B. ½mv²
C. mgh
D. Fd

Answer: B
Rationale: Kinetic energy depends on an object’s mass and the square of its velocity, making speed a critical factor.**

---

47.

Which organ stores bile?
A. Liver
B. Gallbladder
C. Pancreas
D. Stomach

Answer: B
Rationale: The gallbladder stores and concentrates bile produced by the liver, releasing it during digestion of fats.**

---

48.

Which process moves substances against a concentration gradient?
A. Diffusion
B. Osmosis
C. Active transport
D. Filtration

Answer: C
Rationale: Active transport requires energy (ATP) to move molecules from low to high concentration, opposite of natural diffusion.**

---

49.

Which molecule is polar?
A. CO₂
B. CH₄
C. H₂O
D. O₂

Answer: C
Rationale: Water is polar due to its bent shape and unequal distribution of electrons, leading to partial charges.**

---

50.

Which substance acts as a neurotransmitter?
A. DNA
B. Dopamine
C. Glucose
D. ATP

Answer: B
Rationale: Dopamine is a neurotransmitter involved in signaling between neurons, influencing mood and behavior.**

---

51.

Which part of the eye focuses light onto the retina?
A. Cornea
B. Iris
C. Lens
D. Retina

Answer: C
Rationale: The lens changes shape to focus incoming light onto the retina for clear vision.**

---

52.

Which is a property of enzymes?
A. Consumed in reaction
B. Non-specific
C. Lower activation energy
D. Permanent change

Answer: C
Rationale: Enzymes accelerate reactions by lowering activation energy without being consumed or permanently altered.**

---

53.

Which is oxidation?
A. Gain electrons
B. Loss electrons
C. Gain protons
D. Loss neutrons

Answer: B
Rationale: Oxidation is defined as the loss of electrons in a chemical reaction.**

---

54.

Which vitamin is water-soluble?
A. Vitamin A
B. Vitamin D
C. Vitamin C
D. Vitamin K

Answer: C
Rationale: Vitamin C dissolves in water and is not stored extensively in the body, requiring regular intake.**

---

55.

Which force opposes motion?
A. Gravity
B. Friction
C. Tension
D. Normal

Answer: B
Rationale: Friction acts opposite to motion between surfaces in contact, reducing movement.**

---

56.

Which structure controls what enters and leaves the cell?
A. Nucleus
B. Cell membrane
C. Golgi
D. Ribosome

Answer: B
Rationale: The cell membrane is selectively permeable, regulating the movement of substances in and out of the cell.**

---

57.

Which is a function of carbohydrates?
A. DNA storage
B. Energy source
C. Hormone production
D. Oxygen transport

Answer: B
Rationale: Carbohydrates provide quick and accessible energy for cellular processes.**

---

58.

Which describes Boyle’s Law?
A. P ∝ T
B. P ∝ 1/V
C. V ∝ T
D. V ∝ n

Answer: B
Rationale: Boyle’s Law states pressure is inversely proportional to volume at constant temperature.**

---

59.

Which organ pumps blood through the body?
A. Lung
B. Heart
C. Liver
D. Kidney

Answer: B
Rationale: The heart circulates blood, delivering oxygen and nutrients to tissues.**

---

60.

Which molecule acts as an enzyme?
A. Lipid
B. Protein
C. Carbohydrate
D. DNA

Answer: B
Rationale: Enzymes are proteins that catalyze biochemical reactions efficiently and specifically.

61.

Which part of the neuron transmits signals to other cells?
A. Dendrite
B. Axon
C. Soma
D. Nucleus

Answer: B
Rationale: The axon carries electrical impulses away from the cell body toward other neurons or effector cells, enabling communication within the nervous system.**

---

62.

Which molecule is the final electron acceptor in aerobic respiration?
A. NADH
B. Oxygen
C. ATP
D. Carbon dioxide

Answer: B
Rationale: Oxygen accepts electrons at the end of the electron transport chain, forming water and allowing ATP production to continue efficiently.**

---

63.

Which solution causes cells to swell?
A. Hypertonic
B. Hypotonic
C. Isotonic
D. Neutral

Answer: B
Rationale: In a hypotonic solution, water enters the cell due to lower external solute concentration, causing the cell to swell and potentially burst.**

---

64.

Which gas law relates temperature and pressure?
A. Boyle’s Law
B. Charles’s Law
C. Gay-Lussac’s Law
D. Avogadro’s Law

Answer: C
Rationale: Gay-Lussac’s Law states that pressure is directly proportional to temperature when volume is constant.**

---

65.

Which functional group is present in aldehydes?
A. COOH
B. C=O at end
C. OH
D. NH₂

Answer: B
Rationale: Aldehydes contain a terminal carbonyl group bonded to at least one hydrogen atom, distinguishing them from ketones.**

---

66.

Which structure prevents backflow of blood in veins?
A. Arteries
B. Valves
C. Capillaries
D. Ventricles

Answer: B
Rationale: Veins contain valves that prevent blood from flowing backward, ensuring efficient return to the heart.**

---

67.

Which enzyme unwinds DNA during replication?
A. DNA polymerase
B. Helicase
C. Ligase
D. Primase

Answer: B
Rationale: Helicase breaks hydrogen bonds between DNA strands, separating them so replication can occur.**

---

68.

Which type of inhibition reduces enzyme activity regardless of substrate concentration?
A. Competitive
B. Noncompetitive
C. Reversible
D. Temporary

Answer: B
Rationale: Noncompetitive inhibitors bind to a different site than the active site, reducing enzyme function even if substrate levels increase.**

---

69.

Which brain region regulates body temperature?
A. Cerebellum
B. Hypothalamus
C. Medulla
D. Cerebrum

Answer: B
Rationale: The hypothalamus maintains homeostasis, including regulating temperature, hunger, and hormonal balance.**

---

70.

Which is the SI unit of power?
A. Joule
B. Newton
C. Watt
D. Pascal

Answer: C
Rationale: Power is measured in watts, representing energy transferred per unit time.**

---

71.

Which reaction releases energy?
A. Endothermic
B. Exothermic
C. Neutral
D. Reversible

Answer: B
Rationale: Exothermic reactions release heat energy to the surroundings, often increasing temperature.**

---

72.

Which bond holds complementary DNA strands together?
A. Ionic
B. Covalent
C. Hydrogen
D. Peptide

Answer: C
Rationale: Hydrogen bonds between nitrogenous bases stabilize the DNA double helix structure.**

---

73.

Which protein carries oxygen in blood?
A. Insulin
B. Hemoglobin
C. Collagen
D. Myosin

Answer: B
Rationale: Hemoglobin binds oxygen in red blood cells and transports it throughout the body.**

---

74.

Which organelle modifies and packages proteins?
A. Ribosome
B. Golgi apparatus
C. Lysosome
D. Nucleus

Answer: B
Rationale: The Golgi apparatus processes and packages proteins for transport to their final destinations.**

---

75.

Which type of memory stores personal experiences?
A. Procedural
B. Semantic
C. Episodic
D. Working

Answer: C
Rationale: Episodic memory stores autobiographical events and experiences.**

---

76.

Which law describes resistance to change in motion?
A. Newton’s First Law
B. Newton’s Second Law
C. Newton’s Third Law
D. Ohm’s Law

Answer: A
Rationale: Newton’s First Law states objects resist changes in motion unless acted upon by an external force.**

---

77.

Which ion triggers muscle contraction?
A. Na⁺
B. K⁺
C. Ca²⁺
D. Cl⁻

Answer: C
Rationale: Calcium ions enable interaction between actin and myosin, initiating muscle contraction.**

---

78.

Which hormone increases metabolic rate?
A. Insulin
B. Thyroxine
C. Melatonin
D. Estrogen

Answer: B
Rationale: Thyroxine (T4) regulates metabolism by increasing energy use in cells.**

---

79.

Which is a characteristic of enzymes?
A. Consumed
B. Non-specific
C. Highly specific
D. Permanent

Answer: C
Rationale: Enzymes are specific to substrates, ensuring precise biochemical reactions.**

---

80.

Which organ stores glycogen?
A. Kidney
B. Liver
C. Lung
D. Heart

Answer: B
Rationale: The liver stores glycogen and releases glucose to maintain blood sugar levels.**

---

81.

Which force keeps objects moving in a circular path?
A. Friction
B. Gravity
C. Centripetal force
D. Tension

Answer: C
Rationale: Centripetal force pulls objects toward the center of circular motion, keeping them on their path.**

---

82.

Which molecule is nonpolar?
A. H₂O
B. NH₃
C. CH₄
D. CO₂

Answer: C
Rationale: Methane is symmetrical, resulting in no net dipole moment, making it nonpolar.**

---

83.

Which process converts mRNA into protein?
A. Transcription
B. Translation
C. Replication
D. Mutation

Answer: B
Rationale: Translation occurs at ribosomes, where mRNA is used to assemble amino acids into proteins.**

---

84.

Which vitamin is fat-soluble?
A. Vitamin C
B. Vitamin B
C. Vitamin D
D. Vitamin B12

Answer: C
Rationale: Vitamins A, D, E, and K are fat-soluble and stored in body tissues.**

---

85.

Which formula represents potential energy?
A. ½mv²
B. mgh
C. mv
D. Fd

Answer: B
Rationale: Potential energy depends on mass, gravitational acceleration, and height.**

---

86.

Which learning type uses rewards and punishments?
A. Classical conditioning
B. Operant conditioning
C. Observational learning
D. Insight learning

Answer: B
Rationale: Operant conditioning modifies behavior through reinforcement and punishment.**

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87.

Which structure protects the spinal cord?
A. Skull
B. Vertebrae
C. Muscle
D. Skin

Answer: B
Rationale: Vertebrae surround and protect the spinal cord from injury.**

---

88.

Which is a property of acids?
A. Accept protons
B. Donate protons
C. Neutral
D. Gain electrons

Answer: B
Rationale: Acids donate hydrogen ions (H⁺) in solution.**

---

89.

Which formula represents velocity?
A. d/t
B. F/m
C. mgh
D. mv

Answer: A
Rationale: Velocity is calculated as distance divided by time.**

---

90.

Which concept explains behavior influenced by others?
A. Cognition
B. Social influence
C. Memory
D. Emotion

Answer: B
Rationale: Social influence describes how individuals adjust behavior due to group pressure or norms.