100+ Free ATLAS Biology EOC Practice Questions
Prepare for the Arkansas ATLAS Biology End-of-Course Assessment exam with instant access — no signup required.
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Key Facts: ATLAS Biology EOC Exam
ATLAS Biology EOC is Arkansas's statewide Biology end-of-course summative, CAT-delivered by Cambium for DESE, untimed, free to students, and reported in four levels with Level 3+ as grade-level achievement.
Sample ATLAS Biology EOC Practice Questions
Try these sample questions to test your ATLAS Biology EOC exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.
1Which organelle is the primary site of ATP production in eukaryotic cells?
2Which structure controls what enters and leaves a cell?
3A student observes a cell with a nucleus, mitochondria, and chloroplasts. Which type of cell is it most likely to be?
4Which organelle modifies, sorts, and packages proteins for secretion or delivery to other organelles?
5Compared with a typical prokaryotic cell, a eukaryotic cell is more likely to have which feature?
6A toxin that destroys ribosomes would most directly disrupt which cellular process?
7Which macromolecule stores genetic information in cells?
8Which type of macromolecule is primarily responsible for catalyzing biochemical reactions in cells?
9Cell membranes are largely composed of which type of macromolecule arranged in a bilayer?
10A dehydration synthesis reaction that links amino acids produces which type of bond?
About the ATLAS Biology EOC Exam
The Arkansas ATLAS Biology End-of-Course Assessment is part of the Arkansas Teaching, Learning, and Assessment System summative program administered by the Division of Elementary and Secondary Education. It measures student achievement of Arkansas Academic Standards in Biology for students completing the Biology course. Biology EOC emphasizes life science with additional Earth and space science items; official design uses phenomenon-based clusters more than isolated trivia questions. The official assessment is computer-adaptive within the grade or course, includes multiple item types (and for ELA a writing component), and is untimed under PATH rules. Results are reported in four performance levels (Level 1–Level 4), with Level 3 or higher indicating grade-level achievement. OpenExamPrep offers free English multiple-choice practice aligned to ATLAS reporting categories as a study aid—not official items or a full format simulation.
Questions
18 scored questions
Time Limit
Untimed. PATH minimum sit time about 60 minutes for Biology (2024 average about 58 minutes). Taken when enrolled in a course meeting the biology graduation requirement; first-semester window when 75% of the course is complete.
Passing Score
Results are reported in four performance levels (Level 1–Level 4). Level 3 or higher indicates the student has demonstrated achievement aligned to grade-level Arkansas Academic Standards (2023–24 technical report / 2024 standard setting).
Exam Fee
Free to students and families; ATLAS is a state-funded statewide summative assessment administered through Arkansas public schools. (Arkansas Division of Elementary and Secondary Education (DESE); delivered by Cambium Assessment, Inc. (CAI) for the Arkansas Department of Education / DESE)
ATLAS Biology EOC Exam Content Outline
Life Science
Core biology content: cells, heredity, evolution, ecosystems, and organism structure/function (12 of 18 scored items in the official EOC blueprint).
Earth and Space Science
Earth and space science connections assessed on the Biology EOC (6 of 18 scored items in the official blueprint).
How to Pass the ATLAS Biology EOC Exam
What You Need to Know
- Passing score: Results are reported in four performance levels (Level 1–Level 4). Level 3 or higher indicates the student has demonstrated achievement aligned to grade-level Arkansas Academic Standards (2023–24 technical report / 2024 standard setting).
- Exam length: 18 questions
- Time limit: Untimed. PATH minimum sit time about 60 minutes for Biology (2024 average about 58 minutes). Taken when enrolled in a course meeting the biology graduation requirement; first-semester window when 75% of the course is complete.
- Exam fee: Free to students and families; ATLAS is a state-funded statewide summative assessment administered through Arkansas public schools.
Keys to Passing
- Complete 500+ practice questions
- Score 80%+ consistently before scheduling
- Focus on highest-weighted sections
- Use our AI tutor for tough concepts
ATLAS Biology EOC Study Tips from Top Performers
Frequently Asked Questions
What is the Arkansas ATLAS Biology end-of-course assessment?
It is the statewide end-of-course summative assessment in the Arkansas Teaching, Learning, and Assessment System (ATLAS) for Biology, administered by DESE and aligned to the Arkansas Science Standards. Results are used for school accountability and to report student achievement.
Who takes this ATLAS assessment?
Arkansas public school students enrolled in the corresponding grade (for grade-level tests) or EOC-eligible course (Algebra I, Geometry, or Biology). Accelerated students may take math EOCs in place of grade-level math when enrolled in the course. Students who qualify for the alternate assessment take DLM instead.
How many questions are on the official ATLAS test?
Official EOC blueprint: 18 scored items (cluster-style science design)—Life Science 12 and Earth and Space Science 6 (Arkansas Science Standards Summative Blueprint, DESE, October 2023: 6 three-dimensional clusters plus 12 stand-alone items, estimated average test time 90 minutes).
Is ATLAS timed?
No. Official PATH guidance states ATLAS 3–10 content and EOC tests are untimed. Schools schedule minimum sit times for planning, and students should finish a summative content test within one instructional day.
What score is considered proficient?
ATLAS reports four performance levels (Level 1–Level 4). Level 3 or higher indicates achievement aligned to grade-level Arkansas Academic Standards based on the 2024 standard-setting cut scores.
Are these practice questions the real ATLAS exam?
No. These free multiple-choice practice questions are a study aid aligned to Arkansas standards and ATLAS reporting categories. They are not official ATLAS items and do not replace authentic reading/writing, multi-step math modeling, science investigations, or the official computer-adaptive assessment.