HESI A2 Biology Exam 2025 Practice Questions and Answers

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About this Exam

The HESI A2 (Health Education Systems, Inc. Admission Assessment) Biology exam is a crucial component of the comprehensive entrance test used by many nursing and allied health schools across the United States. This specific section evaluates applicants' foundational knowledge of biological concepts, which are essential for success in rigorous healthcare programs. It is designed for prospective students seeking admission to nursing, dental hygiene, radiologic technology, and other health-related fields, aiming to assess their readiness for college-level science curriculum.

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Additional Information

What the Course Entails and Exam Details

The HESI A2 Biology section covers core topics typically taught in high school or introductory college biology courses. Students preparing for this exam should focus their studies on several key areas, including:

  • Cellular Structure and Function: Understanding cell organelles (like the nucleus, mitochondria, ribosomes), their roles, and basic differences between prokaryotic and eukaryotic cells.

  • Biological Chemistry: Basic concepts related to water, pH, and the four major macromolecules (carbohydrates, lipids, proteins, nucleic acids).

  • Cellular Metabolism: The basics of photosynthesis and cellular respiration (including glycolysis, the Krebs cycle, and the electron transport chain).

  • Genetics: Fundamental principles of inheritance, DNA structure and replication, gene expression, and the processes of mitosis and meiosis.

  • Standard Biological Terminology: Familiarity with common prefixes, suffixes, and root words used in biological and medical contexts.


What to Expect in the Final Exam

The Biology subtest of the HESI A2 is a standardized, computer-based exam. It primarily consists of multiple-choice questions designed to test both factual knowledge and its application.

  • Number of Questions: The Biology section typically contains approximately 25 to 50 questions, though this can vary slightly by institution requirements.

  • Time Limit: While the entire HESI A2 exam is usually timed (often around 4 hours for all sections combined), the Biology section does not typically have its own separate, strict timer. However, students must manage their time effectively to complete all scheduled sections within the overall slot.

  • Passing Score: There is no universal passing score set by HESI. Each individual nursing or allied health program establishes its own required minimum score for admission. Students must check the specific admission requirements of their target schools.

  • Format: The exam is administered in a secure, proctored environment, typically on a computer.


How to Study and Exam Centers

Achieving a high score on the HESI A2 Biology exam requires dedicated preparation. Here are some actionable study strategies:

  • Use Official Study Guides: Invest in comprehensive study guides specifically tailored for the HESI A2. These resources provide targeted content reviews and practice questions relevant to the exam's structure.

  • Take Practice Tests: Regularly taking timed practice tests is crucial. This helps build testing stamina, identifies knowledge gaps, and familiarizes students with the types of questions asked. Focus particularly on taking timed Biology subtest practice runs.

  • Review Foundational Biology Concepts: Revisit high school or introductory college biology notes, textbooks, or online educational resources (like Khan Academy) to reinforce core knowledge.

  • Flashcards for Terminology: Biology involves significant terminology. Utilize flashcards to memorize key definitions, cellular organelles, and genetic terms.

Exam Centers:

The HESI A2 exam is typically administered in one of two ways:

  1. At your prospective school: Many nursing and allied health programs administer the HESI A2 on-site as part of their application process. Check with the school's admissions office for testing dates and registration procedures.

  2. At a Prometric Testing Center: HESI partners with Prometric, a global provider of technology-enabled testing and assessment services. Students may be required or given the option to take the exam at an authorized Prometric location. You will need to register through your school or directly through the Prometric website, using the specific eligibility details provided by your institution.


Job Opportunities from the Course

Successfully passing the HESI A2 and gaining admission to a healthcare program unlocks a wide range of rewarding career paths. While the HESI A2 itself is an entrance requirement and not a direct job qualification, it is the first step toward becoming:

  • Registered Nurse (RN)

  • Licensed Practical Nurse (LPN) or Licensed Vocational Nurse (LVN)

  • Dental Hygienist

  • Radiologic Technologist

  • Respiratory Therapist

  • Surgical Technologist

  • Veterinary Technician

By demonstrating proficiency in biological science through the HESI A2, students pave the way for academic success and future careers in these essential healthcare fields.


Frequently Asked Questions

This quiz contains a total of 0 practice questions carefully selected to test your knowledge on this subject.
Yes, you will have exactly 0 minutes to complete the exam. A countdown timer will be visible once you start.
Yes, you can retake this practice test as many times as you need. The questions and options may be randomized on subsequent attempts to ensure comprehensive learning.

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