Free Practice Questions for ATLAS Biology EOC
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Key Facts: ATLAS Biology EOC Exam
ATLAS — Arkansas Teaching, Learning, and Assessment System statewide summative program (DESE ATLAS 3-HS page).
Level 3+ — Performance levels aligned to grade-level Arkansas Academic Standards after 2024 standard setting (ATLAS 2023–24 Technical Report).
CAI — Test delivery and development partner Cambium Assessment, Inc. (ATLAS Technical Report / PATH).
Untimed — Official 3–10 and EOC summative tests are untimed; finish within one instructional day (ATLAS PATH 2024–25).
Free — State-funded assessment with no student testing fee (DESE statewide assessment program).
18 — The Biology EOC summative blueprint has 18 operational items: 6 three-dimensional clusters plus 12 stand-alone items, split Life Science 12 and Earth and Space Science 6 (DESE Science Summative Blueprint, October 2023).
Spring — Primary summative window (e.g., April–May); EOC also has a first-semester window when eligible (DESE testing calendar).
English — ATLAS is administered in English; the Test Administration Manual provides a Spanish translation of the test directions only, plus text-to-speech for science, math, and the writing prompt (ATLAS PATH 2024–25).
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 review concepts for the ATLAS Biology EOC exam. 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 covering topics from ATLAS reporting categories as a study aid—not official items or a full format simulation.
Exam sponsor: Arkansas Division of Elementary and Secondary Education (DESE); delivered by Cambium Assessment, Inc. (CAI) for the Arkansas Department of Education / DESE. The requirements and fees below concern the certification or admission exam, separate from our free practice resources.
Questions
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.
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 / Certification Fees
Free to students and families; ATLAS is a state-funded statewide summative assessment administered through Arkansas public schools.
Exam sponsor websiteFees, eligibility, and exam policies can change. Confirm them with the exam sponsor before applying or paying.
Official sources
Our practice resources: topics covered
We aim to reflect publicly available exam outlines and topic information in our study resources. Coverage, format, and difficulty may differ from the actual exam, and we cannot guarantee that every detail is accurate or current. Confirm exam requirements, fees, and policies with the official exam sponsor.
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).
Preparing for 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 / certification fees: Free to students and families; ATLAS is a state-funded statewide summative assessment administered through Arkansas public schools. Official sources
Using Our Practice Resources
- Work through all 100 available questions
- Review every answer and explanation
- Track weak areas and revisit them
- Use our AI tutor for tough concepts
ATLAS Biology EOC: Suggested Study Strategy
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 covering topics from 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.