MCAT Physics Question — Sound Wave Travel
The speed of sound changes as it moves through the ear of a human. It travels at 343 mph through the ear canal to the tympanic membrane, at a speed of around 3300 mph through the ossicles, and at a…
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Read MoreMCAT Physics Question — Sound Wave Travel
MCAT Biology Question — Antibodies
An individual received an immunization against influenza. When exposed to the virus, they experience much milder systems compared to individuals who were not immunized. This is due to the rapid expansion of memory cells and mobilization of the adaptive immune…
MCAT Biology Question — Steroid-Based Molecules
Which of the following molecules is synthesized from a steroid precursor and functions to modulate gene expression through binding to an intracellular receptor? I. Testosterone II. Triglycerides III. Progesterone IV. DNA A. I only B. I, II, and III C.…
MCAT Physics Questions — Constant Acceleration
A 1000 kg object is dropped from a height of 45 m. The object is designed with a geometry that minimizes air resistance. How long does it take for the object to hit the ground? A. 0.045 seconds B. 3…
MCAT Chemistry Question — Electron Configuration
Calcium chloride is used for the treatment of hyperkalemia. The influx of calcium helps restore the normal gradient between threshold potential and resting membrane potential. What is the electron configuration of calcium in CaCl2? A) 1s22s22p63s23p5 B) 1s22s22p63s23p6 C) 1s22s22p63s23p64s1…
MCAT Biology Question — Menstruation
The drug clomiphene citrate is a commonly used fertility drug that is taken on days 5-9 of the menstrual cycle. It is a selective estrogen receptor modulator that induces ovulation by blocking estrogen receptors in the brain. Individuals taking clomiphene…
MCAT Physics Question — Positive Charges
A peptide consisting of the amino acid sequence ARSRTA is immobilized on a nitrocellulose membrane and bathed in a buffered solution at pH 7. If a second peptide consisting of the same amino acid sequence is added to the solution,…
MCAT Biology Question — Digestive System
In the duodenum, most dietary lipids are emulsified into droplets, with the majority of particles ranging in size from 1–100 µm in diameter. After about one hour of digestion, smaller emulsified droplets in the 1–50 µm range can be detected.…
MCAT Biology Question — Genetic Information
In 1955, a team of scientists discovered a bacteriophage that infected the K12 strain of Escherichia Coli. This bacteriophage occasionally packaged a set of genes specifying galactose fermentation and delivered those genes to other bacteria through which of the following…
MCAT Organic Chemistry Question — IUPAC
The compound shown below is synthesized through the reductive amination of acetone with ammonia using copper chromite. It reacts with organolithium reagents to produce LDA, a strong, non-nucleophilic base. What is the IUPAC name of this compound? Diisopropylamine Diisobutylamine Di-tert-propylamine…