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100+ Free Abitur Biology Practice Questions

Pass your German Abitur Biology (Biologie) for the Allgemeine Hochschulreife exam on the first try — instant access, no signup required.

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No single Biology pass rate applies nationally because Abitur assessment, candidate cohorts, and reporting vary by Land. Pass Rate
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A plant cell undergoing plasmolysis has most likely been placed in which environment?

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B
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Continue into nearby exams from the same family. Each card keeps practice questions, study guides, flashcards, videos, and articles in one place.

2026 Statistics

Key Facts: Abitur Biology Exam

100

Original local practice MCQs on this page

OpenExamPrep

4 offered / 3 worked

IQB natural-science written task-pool selection structure

IQB Beschreibung der Struktur der Aufgaben

255 / 300 minutes

Basic-level / increased-level working time including selection time

IQB Beschreibung der Struktur der Aufgaben

4 content areas

KMK/IQB Biology framework: Leben und Energie, Informationsverarbeitung, Umwelt, Vielfalt

KMK Bildungsstandards AHR Biologie; IQB Biologie content agreements

2025

Biology, Chemistry, and Physics added to common Abitur task-pool availability

IQB Sekundarstufe II

Abitur Biology varies by German Land, but KMK standards and IQB pool documents define a common framework. The IQB natural-science written structure offers four tasks and requires three, with 255 minutes at basic level and 300 minutes at increased level, plus up to 60 minutes for a practical component. This local bank provides 100 original MCQs for concepts, experiments, data, and models.

Sample Abitur Biology Practice Questions

Try these sample questions to test your Abitur Biology exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1Which cell structure contains the genetic information in a typical eukaryotic body cell?
A.Ribosome
B.Nucleus
C.Lysosome
D.Cell wall
Explanation: The nucleus contains the chromosomes of a typical eukaryotic body cell and is the main site where genetic information is stored and transcribed.
2What is the main function of mitochondria in aerobic eukaryotic cells?
A.Producing most ATP by cellular respiration
B.Packaging proteins for secretion
C.Breaking down DNA during replication
D.Storing starch grains in chloroplasts
Explanation: Mitochondria carry out key steps of aerobic respiration, including the citric acid cycle and oxidative phosphorylation, producing most cellular ATP.
3Why do phospholipids form bilayers in water?
A.Their hydrophilic tails point toward water
B.Their hydrophobic heads point toward water
C.They have hydrophilic heads and hydrophobic tails
D.They are covalently bonded into rigid sheets
Explanation: Phospholipids are amphipathic: polar heads interact with water, while nonpolar fatty acid tails avoid water and face inward, forming a bilayer.
4A plant cell is placed in a solution with a much higher solute concentration than the cell sap. What will happen first by osmosis?
A.Water enters the cell and turgor increases
B.Water leaves the cell and the vacuole shrinks
C.Solute leaves the solution and enters the nucleus
D.The cell wall dissolves immediately
Explanation: Water moves from higher water potential inside the cell toward the more concentrated external solution, causing the vacuole and protoplast to shrink.
5What usually happens to enzyme activity when temperature rises far above the enzyme's optimum?
A.The active site may change shape and activity falls
B.The enzyme becomes a carbohydrate
C.The substrate permanently becomes the enzyme
D.The reaction stops because activation energy becomes zero
Explanation: High temperatures can denature proteins, changing the active site's shape so the substrate no longer binds effectively and reaction rate decreases.
6Which substances are direct reactants in photosynthesis?
A.Glucose and oxygen
B.Carbon dioxide and water
C.ATP and oxygen only
D.Lactate and ethanol
Explanation: Photosynthesis uses carbon dioxide and water, with light energy, to produce carbohydrate and oxygen in chloroplasts.
7Which process directly uses oxygen as the final electron acceptor in aerobic respiration?
A.Glycolysis
B.The Calvin cycle
C.The electron transport chain
D.DNA replication
Explanation: In aerobic respiration, oxygen accepts electrons at the end of the mitochondrial electron transport chain and combines with protons to form water.
8In double-stranded DNA, which base pairs with adenine?
A.Guanine
B.Cytosine
C.Thymine
D.Uracil
Explanation: In DNA, adenine pairs with thymine through hydrogen bonds. Guanine pairs with cytosine.
9Which statement best distinguishes meiosis from mitosis?
A.Meiosis produces genetically varied haploid cells
B.Meiosis produces two identical diploid cells
C.Mitosis halves chromosome number in gametes
D.Mitosis always includes crossing over
Explanation: Meiosis reduces chromosome number and produces haploid cells that are genetically varied through recombination and independent assortment.
10An organism with alleles Aa for a trait is best described as what?
A.Homozygous dominant
B.Homozygous recessive
C.Heterozygous
D.Hemizygous for both alleles
Explanation: A heterozygous organism has two different alleles of a gene, such as A and a.

About the Abitur Biology Exam

German Abitur Biology assesses upper-secondary biological knowledge and scientific reasoning for the Allgemeine Hochschulreife. The current KMK standards organize Biology around competence areas, biological base concepts, and four content areas: Leben und Energie, Informationsverarbeitung in Lebewesen, Lebewesen in ihrer Umwelt, and Vielfalt des Lebens. IQB pool tasks emphasize material-based analysis, experimental evidence, model use, and evaluation rather than recall alone. Because the Laender administer the Abitur, students must pair this practice bank with their Land's current Biology specifications, course level, exam date, and permitted-aid rules.

Assessment

German Abitur Biology is administered by the Laender, so exact implementation, dates, permitted aids, oral options, and state-specific focus areas vary. KMK Biology standards for the Allgemeine Hochschulreife and IQB-coordinated common Abitur task pools provide the national standards framework. The IQB natural-science pool structure distinguishes grundlegendes Anforderungsniveau and erhoehtes Anforderungsniveau: four tasks are offered, three are worked, each task has equal Bewertungseinheiten, and at most one task may include a practical component. Written Biology tasks are material-based and may require interpreting texts, figures, tables, measurement series, experimental results, and diagrams.

Time Limit

IQB natural-science pool structure: 255 minutes at grundlegendes Anforderungsniveau and 300 minutes at erhoehtes Anforderungsniveau, including selection time; up to 60 additional minutes if a task has a practical component.

Passing Score

No separate national Biology pass mark. Overall Abitur award depends on total qualification under Land rules; the IQB/KMK natural-science Bewertungseinheiten grid maps 40% to 4 Notenpunkte, the lowest sufficient point value.

Exam Fee

No single national fee is set by KMK or IQB. Regular school candidates sit through their Land and school; external-candidate or second-chance fees, where applicable, vary by Land. (German Laender education authorities, using KMK standards and IQB-coordinated common Abitur task pools)

Abitur Biology Exam Content Outline

Core IQB/KMK area; official weighting varies by Land and paper

Leben und Energie

Metabolism, enzymes, compartment transport, chemiosmotic ATP formation, photosynthesis, Calvin cycle, cellular respiration, fermentation, chromatography, and tracer-based reasoning.

Core IQB/KMK area; official weighting varies by Land and paper

Informationsverarbeitung in Lebewesen

Neurons, resting and action potentials, synapses, neuromuscular transmission, receptor potentials, sensory cells, hormones, neural-hormonal regulation, summation, plasticity, and physiological control.

Core IQB/KMK area; official weighting varies by Land and paper

Lebewesen in ihrer Umwelt

Biotopes and biocenoses, abiotic and biotic factors, tolerance curves, ecological potency, food webs, carbon and nitrogen cycles, relationships among species, niche concepts, population growth, biodiversity, sustainability, and ecosystem management.

Core IQB/KMK area; official weighting varies by Land and paper

Vielfalt des Lebens

DNA structure and replication, transcription, translation, gene mutations, eukaryotic gene regulation, epigenetics, human genetic disease, pedigrees, genetic testing, gene therapy, evolution, phylogenetic trees, selection, drift, isolation, speciation, and biodiversity.

Integrated across tasks

Scientific Inquiry, Data, and Models

Experimental variables, controls, practical methods, microscopy, chromatography, PCR, gel electrophoresis, ecological sampling, graph and table interpretation, uncertainty, model assumptions, population models, and evidence-based evaluation.

How to Pass the Abitur Biology Exam

What You Need to Know

  • Passing score: No separate national Biology pass mark. Overall Abitur award depends on total qualification under Land rules; the IQB/KMK natural-science Bewertungseinheiten grid maps 40% to 4 Notenpunkte, the lowest sufficient point value.
  • Assessment: German Abitur Biology is administered by the Laender, so exact implementation, dates, permitted aids, oral options, and state-specific focus areas vary. KMK Biology standards for the Allgemeine Hochschulreife and IQB-coordinated common Abitur task pools provide the national standards framework. The IQB natural-science pool structure distinguishes grundlegendes Anforderungsniveau and erhoehtes Anforderungsniveau: four tasks are offered, three are worked, each task has equal Bewertungseinheiten, and at most one task may include a practical component. Written Biology tasks are material-based and may require interpreting texts, figures, tables, measurement series, experimental results, and diagrams.
  • Time limit: IQB natural-science pool structure: 255 minutes at grundlegendes Anforderungsniveau and 300 minutes at erhoehtes Anforderungsniveau, including selection time; up to 60 additional minutes if a task has a practical component.
  • Exam fee: No single national fee is set by KMK or IQB. Regular school candidates sit through their Land and school; external-candidate or second-chance fees, where applicable, vary by Land.

Keys to Passing

  • Complete 500+ practice questions
  • Score 80%+ consistently before scheduling
  • Focus on highest-weighted sections
  • Use our AI tutor for tough concepts

Abitur Biology Study Tips from Top Performers

1Start with your Land's current Biology exam specifications, because the Abitur is state-administered even when IQB pool tasks are used.
2Study the four KMK/IQB content areas as connected systems rather than separate vocabulary lists.
3Practice interpreting unfamiliar material: diagrams, tables, measurement series, experimental results, food webs, genetic crosses, gels, and models.
4Review practical methods such as microscopy, chromatography, osmosis experiments, enzyme assays, ecological sampling, PCR, and gel electrophoresis.
5Use operator words deliberately; Abitur Biology rewards explaining, analyzing, evaluating, and modeling with evidence.
6After MCQ review, write full material-based responses under timed conditions and compare them with official or teacher-reviewed expectations.

Frequently Asked Questions

Is German Abitur Biology one national exam?

No. The Abitur is administered by the Laender. KMK standards and IQB common task pools create a shared framework, but exact schedules, implementation, state-specific specifications, oral options, and permitted aids must be checked with the student's Land and school.

How is the IQB Biology written task structure organized?

For the natural-science task-pool structure, four tasks are offered and three are worked. At increased level, each worked task has 40 Bewertungseinheiten and the time is 300 minutes. At basic level, each worked task has 30 Bewertungseinheiten and the time is 255 minutes. A practical component can add up to 60 minutes.

What content areas should I study for Abitur Biology?

Use the KMK/IQB areas: Leben und Energie, Informationsverarbeitung in Lebewesen, Lebewesen in ihrer Umwelt, and Vielfalt des Lebens. These include metabolism, neurobiology, physiology, ecology, genetics, evolution, molecular methods, experiments, data interpretation, and modeling.

Are these questions copied from IQB or state Abitur papers?

No. This bank contains original selected-response practice items. It is designed for concept checks and data reasoning before students work full official material-based tasks from their Land or published IQB pool materials.

What is the difference between basic and increased level?

KMK describes grundlegend and erhoeht levels as differing in breadth, depth, connections among knowledge, and the degree of independent problem solving. IQB pool documents also set different working times and Bewertungseinheiten for the two levels.

What should I use after finishing this MCQ bank?

Work full Land-specific Abitur Biology papers and published IQB pool tasks. Focus on operator words, written explanations, experimental evaluation, graphs, tables, unfamiliar biological contexts, and time management for choosing and completing three tasks.