The Optometry Admission Test (OAT) is a standardized examination designed to measure the general academic ability and comprehension of scientific information of applicants to optometry schools. The Biology section, specifically, evaluates knowledge of foundational biological concepts. This practice test, based on the previous exam specifications, is a crucial tool for students preparing to sit for the actual OAT, allowing them to gauge their readiness and identify areas needing further review. It is designed for students who have completed pre-optometry prerequisite courses in biology.
The OAT Biology section covers a broad spectrum of topics essential for success in optometry school. The core topics generally include:
Cell and Molecular Biology: Structure, function, and metabolism of cells; molecular genetics.
Diversity of Life: Classification and characteristics of major kingdoms (Monera, Protista, Fungi, Plantae, Animalia).
Structure and Function of Systems: Comparative anatomy and physiology, with a strong emphasis on human systems (integumentary, skeletal, muscular, circulatory, immune, respiratory, digestive, excretory, nervous, endocrine, and reproductive).
Developmental Biology: Fertilization, cleavage, and developmental stages.
Genetics: Mendelian genetics, inheritance patterns, and population genetics.
Evolution, Ecology, and Behavior: Mechanisms of evolution, ecosystem dynamics, and animal behavior.
The OAT Biology section consists of 40 multiple-choice questions. It is part of the Survey of the Natural Sciences, which also includes General Chemistry (30 questions) and Organic Chemistry (30 questions). Candidates have a total of 90 minutes to complete all 100 questions in the Natural Sciences section. The exam is computer-based and administered at Prometric testing centers. There is no penalty for guessing, so it is advisable to answer every question. Scores are reported on a scale from 200 to 400.
To prepare effectively, students should utilize comprehensive review books specifically designed for the OAT. Consistent practice with multiple-choice questions, particularly from this practice test, will help build speed and accuracy. It is recommended to create flashcards for key biological terms, structures, and processes. Group study and teaching concepts to others can also reinforce learning.
The OAT is administered by Prometric testing centers located throughout the United States, its territories, and Canada. You must register for the exam in advance through the American Dental Association (ADA) website to schedule a testing appointment at a center convenient for you.
While the OAT itself is an entrance exam and not a course that directly leads to jobs, achieving a high score is a prerequisite for admission to optometry school. Graduating from an accredited optometry program opens doors to various career paths, including:
Licensed Optometrist in private practice
Associate Optometrist in a group practice or clinic
Optometrist in a retail optical setting
Clinical researcher in vision science
Hospital-based Optometrist
Consultant for optical or pharmaceutical companies
Academic faculty member at an optometry school
Create an account or log in to unlock full access and continue with this quiz and download the printable pdf with all questions and answers.
