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Free Practice Questions for OGE Biology

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Key Facts: OGE Biology Exam

2026 official task count: 26; primary-score maximum: 48.

Duration: 150 minutes.

Official format: 21 short-answer tasks and five developed responses, including analysis of biological information and practical-method scenarios.

Assessment language: Russian.

2026 federal recommendation: grade 3 begins at 13 of 48 primary points; regional authorities approve the final conversion scale.

This is independent practice and an English-language MCQ study adaptation, not an official translation, an official paper or a simulation of the exam language environment. MCQs do not replace the official short answers, developed responses or practical application tasks.

26 tasks; 150 minutes; maximum 48 primary points. This is independent practice and an English-language MCQ study adaptation, not an official translation, an official paper or a simulation of the exam language environment. MCQs do not replace the official short answers, developed responses or practical application tasks.

Sample OGE Biology Practice Questions

Try these sample questions to review concepts for the OGE Biology exam. Each question includes a detailed explanation. Start the interactive quiz above for the full 110+ question experience with AI tutoring.

1Which biological science investigates the structure, biochemistry, and life cycles of individual cells?
A.Anatomy
B.Histology
C.Cytology
D.Embryology
Explanation: Cytology is the branch of biology dedicated to studying cell structure, organelles, physiology, and replication. Understanding cellular organization is fundamental to 9th-grade biology curricula.
2A biologist studies the effect of varying soil salinity on the growth rate of wheat seedlings in an environmental chamber. Which scientific method is being employed?
A.Passive observation
B.Controlled experiment
C.Historical modeling
D.Phenotypic description
Explanation: The experimental method involves actively manipulating independent variables under controlled conditions to observe effects on dependent outcomes. This differs from passive observation where phenomena are recorded without intervention.
3Which cellular structure can be routinely resolved and observed using a standard light microscope in a school laboratory?
A.Cell nucleus
B.Ribosome
C.Endoplasmic reticulum
D.Microfilament
Explanation: A standard light microscope can resolve structures down to approximately 200 nanometers, making large organelles such as the cell nucleus easily visible when stained. Submicroscopic organelles like ribosomes require transmission electron microscopy.
4Which biological level of organization is represented by blood in vertebrate animals?
A.Organ level
B.Cellular level
C.Organismal level
D.Tissue level
Explanation: Blood is classified as a specialized liquid connective tissue consisting of formed cellular elements suspended in an intercellular liquid matrix known as plasma. It coordinates transport and immune defense across organ systems.
5Which fundamental characteristic of living organisms encompasses the interconnected processes of anabolism and catabolism?
A.Irritability
B.Metabolism
C.Reproduction
D.Growth
Explanation: Metabolism includes all biochemical transformations within an organism, balancing synthetic energy-requiring reactions with degradative energy-releasing pathways. This constant exchange of matter and energy maintains homeostatic stability.
6Which organelle is surrounded by a double membrane with cristae and serves as the primary site of aerobic ATP synthesis in eukaryotic cells?
A.Mitochondrion
B.Golgi apparatus
C.Lysosome
D.Centrosome
Explanation: Mitochondria possess an outer membrane and an inner membrane folded into cristae to maximize the surface area for oxidative phosphorylation. They generate the majority of cellular ATP via cellular respiration.
7In which plant cell organelle are thylakoids and chlorophyll located to capture light energy during photosynthesis?
A.Chromoplast
B.Leucoplast
C.Chloroplast
D.Vacuole
Explanation: Chloroplasts contain chlorophyll embedded in thylakoid membranes stacked into grana, where the light-dependent reactions of photosynthesis take place. The surrounding stroma facilitates the synthesis of carbohydrates.
8Which structural feature is present in mature plant cells but absent in typical animal cells?
A.Plasma membrane
B.Mitochondria
C.Endoplasmic reticulum
D.Cellulose cell wall
Explanation: Plant cells are enclosed by a rigid external cell wall composed primarily of cellulose microfibrils that provides structural support and prevents osmotic bursting. Animal cells lack a rigid wall and possess only a flexible plasma membrane.
9Where in a typical eukaryotic cell are ribosomal subunits assembled before being exported to the cytoplasm?
A.Lysosome
B.Nucleolus
C.Golgi apparatus
D.Peroxisome
Explanation: The nucleolus is a dense non-membrane-bound subnuclear region where ribosomal RNA genes are transcribed and combined with imported proteins to assemble small and large ribosomal subunits. These subunits are subsequently exported through nuclear pores.
10What occurs to an isolated human erythrocyte when placed into a hypotonic solution such as distilled water?
A.It crenates due to water loss
B.It remains unchanged due to cell wall rigidity
C.It swells and bursts via osmotic lysis
D.It actively pumps out sodium ions to maintain volume
Explanation: In a hypotonic environment, water enters the erythrocyte down its osmotic gradient because the solute concentration is higher inside the cell. Lacking a rigid cell wall, the animal cell swells until the plasma membrane ruptures, a process termed hemolysis.

About the OGE Biology Exam

Main State Exam (ОГЭ) in Biology is a current 2026 subject assessment within Russian state final certification. 21 short-answer tasks and five developed responses, including analysis of biological information and practical-method scenarios. The maximum primary score is 48. Assessment language: Russian. This is independent practice and an English-language MCQ study adaptation, not an official translation, an official paper or a simulation of the exam language environment. MCQs do not replace the official short answers, developed responses or practical application tasks. This bank contains 110 reviewed study questions. It is a selective learning resource, not complete coverage of every official topic or a replica of an examination paper.

Exam sponsor: Rosobrnadzor / FIPI. The requirements and fees below concern the certification or admission exam, separate from our free practice resources.

Questions

26 questions

Time Limit

150 minutes

Passing Score

2026 federal recommendation: grade 3 begins at 13 of 48 primary points; regional authorities approve the final conversion scale.

Exam / Certification Fees

A current official fee statement was not confirmed in the sources checked; ask the regional examination authority.

Exam sponsor website

Fees, 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.

Official scope; task allocation varies

Biological methods and cells

Study this area using the 2026 FIPI codifier, specification and demonstration paper.

Official scope; task allocation varies

Organisms and their diversity

Study this area using the 2026 FIPI codifier, specification and demonstration paper.

Official scope; task allocation varies

Human biology and health

Study this area using the 2026 FIPI codifier, specification and demonstration paper.

Official scope; task allocation varies

Organisms and environment

Study this area using the 2026 FIPI codifier, specification and demonstration paper.

Preparing for the OGE Biology Exam

What You Need to Know

  • Passing score: 2026 federal recommendation: grade 3 begins at 13 of 48 primary points; regional authorities approve the final conversion scale.
  • Exam length: 26 questions
  • Time limit: 150 minutes
  • Exam / certification fees: A current official fee statement was not confirmed in the sources checked; ask the regional examination authority. Official sources

Using Our Practice Resources

  • Work through all 110 available questions
  • Review every answer and explanation
  • Track weak areas and revisit them
  • Use our AI tutor for tough concepts

OGE Biology: Suggested Study Strategy

1Use the approved 2026 FIPI specification and codifier to check the full assessed scope.
2Review the worked feedback here, then explain your reasoning without looking at the choices.
3Practise the official response methods separately, including complete written, spoken, laboratory, or computer work where required.

Frequently Asked Questions

What is the official 2026 assessment format?

21 short-answer tasks and five developed responses, including analysis of biological information and practical-method scenarios. Assessment language: Russian.

How is the result assessed?

2026 federal recommendation: grade 3 begins at 13 of 48 primary points; regional authorities approve the final conversion scale.

Does this bank reproduce the official assessment?

This is independent practice and an English-language MCQ study adaptation, not an official translation, an official paper or a simulation of the exam language environment. MCQs do not replace the official short answers, developed responses or practical application tasks.

Who can take the assessment?

The OGE is part of grade 9 state final certification. Confirm admission requirements, the final oral-interview result and any permitted accommodations with the school or regional authority.

What is the examination fee?

A current official fee statement was not confirmed in the sources checked; ask the regional examination authority.

How much of the exam does this bank cover?

This bank contains 110 reviewed study questions. It is a selective learning resource, not complete coverage of every official topic or a replica of an examination paper. Use the official codifier and complete original-response practice to address the full assessment.

How is the official content distributed?

The official five content blocks have variable task ranges: biology as a science 3–6, characteristics of organisms 4–7, diversity and evolution 6–8, human health 6–10, and ecology 3–4, within 26 tasks. The practice categories cross these blocks; experiments and data interpretation are included.