MCAT
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MCAT is a trademark of its owner, which is not affiliated with and does not endorse Test Treasure Publication or TTP Prep.
10 sample questions for the MCAT, with the correct answer and an explanation for each. No account needed. Try each one before you open the answer.
Sections covered on the exam: Systems, Biological and Biochemical Foundations of Living Systems, Molecularbiologyandgenetics, Microbiologyandimmunology, Humanphysiology, Generalchemistry, Organicchemistry, Physics, Psychology, Sociologyandculture, Passage-Based, Readingcomprehensionstrategies, Logicalreasoningandinference, Passage-Basedpractice.
Question 1 · Systems
Which of the following is a function of the Golgi apparatus in eukaryotic cells?
Answer: D. Protein modification and sorting
The Golgi apparatus is responsible for modifying, packaging, and sorting proteins and lipids that are synthesized in the endoplasmic reticulum before they are sent to their final destinations within or outside the cell.
Question 2 · Microbiologyandimmunology
A researcher develops a vaccine using a weakened form of a virus. What type of vaccine is this?
Answer: D. Attenuated vaccine
Attenuated vaccines use a live but weakened form of the pathogen that stimulates immunity without causing disease in healthy individuals.
Question 3 · Organicchemistry
Which of the following statements about stereoisomers is TRUE?
Answer: C. Enantiomers rotate plane-polarized light in opposite directions.
Enantiomers are mirror-image stereoisomers that rotate plane-polarized light in equal but opposite directions. Diastereomers are not mirror images, enantiomers differ in optical rotation, and constitutional isomers differ in connectivity.
Question 4 · Psychology
Which of the following is most associated with Bandura’s theory of learning?
Answer: D. Observational learning
Albert Bandura proposed observational learning (also called modeling or social learning), in which individuals learn by watching others.
Question 5 · Readingcomprehensionstrategies
What is the best strategy when encountering a long and complex MCAT passage?
Answer: B. Read for the main idea and author’s tone
CARS passages test reasoning, not rote memorization. Understanding the main idea, tone, and argument flow is the most effective strategy.
Question 6 · Systems
Which of the following structures is found in both prokaryotic and eukaryotic cells?
Answer: B. Ribosome
Ribosomes are the only structure listed that exist in both prokaryotic and eukaryotic cells. They are essential for protein synthesis.
Question 7 · Microbiologyandimmunology
Which of the following immune responses is associated with Type I hypersensitivity (e.g., allergies)?
Answer: D. IgE-mediated mast cell degranulation
Type I hypersensitivity reactions, such as allergic responses, involve the binding of allergens to IgE on mast cells, causing degranulation and the release of histamines.
Question 8 · Organicchemistry
Which spectroscopic technique is most useful for identifying the functional groups present in an organic molecule?
Answer: C. Infrared spectroscopy
Infrared (IR) spectroscopy is used to identify functional groups based on their characteristic absorption of IR light at specific frequencies.
Question 9 · Psychology
Which memory type holds information briefly, such as a phone number just heard?
Answer: D. Short-term memory
Short-term memory retains information for brief periods (seconds to minutes) and is limited in capacity and duration.
Question 10 · Readingcomprehensionstrategies
When answering CARS questions, which of the following should be avoided?
Answer: A. Inferring meaning beyond the text
The MCAT CARS section rewards reasoning based solely on the text. Avoid injecting outside knowledge or extreme assumptions.
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