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🧬 HESI A2 Free Sample – Biology

HESI A2 7 Questions ✓ Free Access

Tests foundational biology concepts like cell structure, genetics, and body systems.

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Sample Questions with Detailed Explanations

Below are sample questions from this exam.

Q1: The cellular membrane consists of a bilayer of which substances?

A. Proteins.
B. Carbohydrates.
C. Nucleic acids.
D. Phospholipids.
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Q2: Which antioxidant is identified as a healing vitamin?

A. K.
B. E.
C. A.
D. D.
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Q3: What does the mitochondrion produce that causes it to often be called the powerhouse of the cell?

A. Enzymes.
B. Proteins.
C. DNA
D. ATP.
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Q4: What structure allows sperm cells to move?

A. Centriole.
B. Flagellum.
C. Centrosome.
D. Cilium.
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Q5: What is the purpose of cellular respiration?

A. Produce enzymes.
B. Enable fermentation.
C. Obtain energy in the form of ATP.
D. Produce oxygen molecules.
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Exam Details
Total Questions: 7 practice questions
Category: HESI A2
Subcategory: BIOLOGY
Domain: Biology Exams
Last Updated: Nov 29, 2025
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