AAMC MCAT

AAMC MCAT PRACTICE EXAM 2 NEWEST 2025/2026 COMPLETE ALL 200 QUESTIONS AND CORRECT DETAILED ANSWERS |ALREADY GRADED A+||ALREADY GRADED A+ C/P: A person is sitting in a chair. Why must the person either lean forward or slide their feet under the chair in order to stand up? A) to increase the force required to stand up B) to use the friction with the ground C) to reduce the energy required to stand up D) to keep the body in equilibrium while rising D) to keep the body in equili...

AAMC MCAT PRACTICE EXAM 1 NEWEST 2025/2026 COMPLETE ALL 200 QUESTIONS AND CORRECT DETAILED ANSWERS |ALREADY GRADED A+||ALREADY GRADED A+ Why is the velocity of blood flow slower in capillaries than in arteries? A) Capillary walls are more elastic than arterial walls. B) Capillaries have less resistance to blood flow than arteries. C) The total cross-sectional area of capillaries exceeds that of arteries. D) Blood pressure is higher in the capillaries than in arteries. C) The t...

In the chromatography of the reaction mixture, water absorbed on cellulose functioned as the stationary phase. What was the principal factor determining the migration of individual components in the sample? A) Hydrogen bonding B) Solute concentration C) Stationary phase concentration D) Thickness of paper - ANSWER A) Hydrogen bonding The answer to this question is A because the relative amount of hydrogen bonding to the stationary phase will determine the relative rate of migration of th...

C/P: What expression gives the amount of light energy (in J per photon) that is converted to other forms between the fluorescence excitation and emission events? "intensity of fluorescence emission at 440 nm excitation at 360 nm) was monitored for 20 minutes" A) (6.62 × 10-34) × (3.0 × 108) B) (6.62 × 10-34) × (3.0 × 108) × (360 × 10-9) C) (6.62 × 10-34) × (3.0 × 108) × [1 / (360 × 10-9) - 1 / (440 × 10-9)] D) (6.62 × 10-34) × (3.0 × 108) / (440 × 10-9) - ANSWER C) (6....

In the chromatography of the reaction mixture, water absorbed on cellulose functioned as the stationary phase. What was the principal factor determining the migration of individual components in the sample? A) Hydrogen bonding B) Solute concentration C) Stationary phase concentration D) Thickness of paper - Answer - A) Hydrogen bonding The answer to this question is A because the relative amount of hydrogen bonding to the stationary phase will determine the relative rate of migration o...

Limestone does NOT decompose when heated to 900 K because, at 900 K, ΔH is: A. positive and less than TΔS. B. positive and greater than TΔS. C. negative and less than TΔS. D. negative and greater than TΔS. - ANSWER B. positive and greater than TΔS. The reaction does not occur (is not spontaneous). This indicates that ΔG = ΔH - TΔS > 0. From inspection of the reaction, it can be concluded that ΔS > 0 (a gas evolves). Consequently, ΔH > TΔS explains why the reactio...

1) Which graph best describes the relative performance of Ps and controls on the type of lexical decision task described in the passage? - ANSWER Did not understand that y axis; quick reaction times means less msec 4) The numbers presented to the participants in the avoidance study function as: A. reinforcers. B. punishers. C. discriminating stimuli. D. unconditioned stimuli. - ANSWER C) discriminating stimuli the numbers signal the availability of reinforcement or punishment ...

Most cytochrome P450 enzymes alter the activity of drugs by: A. phosphorylating them. B. dephosphorylating them. C. oxidizing them. D. reducing them. - ANSWER C. oxidizing them. cytochrome p450 acts as monooxygenase, where an oxygen atom is inseted into substrate, thereby resulting in oxidation of substrate. Given that antibiotics like erythromycin are metabolized by estrogen-sensitive P450 enzymes within the liver, which graph best predicts the expected relative half-life of eryt...