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100+ Free Gaokao Biology Practice Questions

Pass your China National College Entrance Examination Biology exam on the first try — instant access, no signup required.

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No single national pass rate applies to Biology because Gaokao admissions are ranking- and plan-based with provincial score lines and subject-selection models. Pass Rate
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Which cell structure is directly responsible for linking amino acids during protein synthesis?

A
B
C
D
to track
2026 Statistics

Key Facts: Gaokao Biology Exam

100

Free practice questions here

OpenExamPrep

75 minutes / 100 points

Guangdong selective Biology example

Guangdong Ordinary High School Academic Level Examination Measures

90 minutes / 100 points

Beijing 2026 Biology level-exam example

Beijing Education Examinations Authority 2026 work rules

Province-specific

Biology paper structure, timing, fees, and scoring conversion

MOE/NEEA and provincial admissions authorities

Gaokao Biology is not one fixed national 100-question paper. It is commonly a provincial selective or level subject aligned to national high-school biology curriculum standards, with timing such as 75 minutes in Guangdong and 90 minutes in Beijing. This local bank provides 100 original MCQs for cells, genetics, evolution, ecology, physiology, biotechnology, experiments, and data interpretation.

Sample Gaokao Biology Practice Questions

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

1Which property of water most directly helps stabilize temperature inside living cells?
A.High specific heat capacity
B.Low surface tension
C.Ability to dissolve all lipids
D.Permanent peptide bonding
Explanation: Water has a high specific heat capacity because hydrogen bonds absorb energy before water temperature changes much. This buffers cells and tissues against rapid temperature shifts.
2A bacterial cell differs from a plant cell because the bacterial cell normally lacks which structure?
A.Cell membrane
B.Ribosomes
C.A membrane-bound nucleus
D.DNA
Explanation: Bacteria are prokaryotes, so their DNA is not enclosed in a membrane-bound nucleus. They still have a cell membrane, ribosomes, and genetic material.
3Which cell structure is directly responsible for linking amino acids during protein synthesis?
A.Ribosome
B.Lysosome
C.Golgi apparatus
D.Vacuole
Explanation: Ribosomes read mRNA and catalyze peptide-bond formation between amino acids. This is the central step of translation.
4In an actively respiring root cell, which organelle produces most of the ATP by aerobic respiration?
A.Chloroplast
B.Mitochondrion
C.Cell wall
D.Nucleolus
Explanation: Mitochondria carry out the citric acid cycle and oxidative phosphorylation, which produce most ATP in aerobic respiration. Root cells may not contain functional chloroplasts.
5The selective permeability of the plasma membrane is mainly explained by which feature?
A.A rigid cellulose layer
B.A phospholipid bilayer with embedded proteins
C.A double helix of nucleotides
D.A lattice of calcium carbonate
Explanation: The hydrophobic interior of the phospholipid bilayer restricts many polar substances, while membrane proteins provide specific transport routes. Together they create selective permeability.
6Why does heating most enzymes far above their optimum temperature reduce reaction rate?
A.The enzyme is denatured and its active site changes shape
B.The enzyme is converted into DNA
C.The substrate becomes an enzyme
D.The reaction changes from catalyzed to photosynthetic
Explanation: High temperature disrupts bonds that maintain protein shape. When the active site changes, the substrate no longer binds effectively and catalytic rate falls.
7A small nonpolar molecule moves directly through a membrane from high concentration to low concentration. Which transport process is this?
A.Simple diffusion
B.Active transport
C.Endocytosis
D.Exocytosis
Explanation: Simple diffusion moves substances down their concentration gradient without ATP or a transport vesicle. Small nonpolar molecules can pass through the lipid bilayer this way.
8During the light reactions of photosynthesis in plants, the oxygen released mainly comes from which molecule?
A.Water
B.Carbon dioxide
C.Glucose
D.NADPH
Explanation: Photosystem II splits water, releasing electrons, protons, and oxygen gas. The oxygen atoms in released O2 therefore come from water.
9In eukaryotic cells, glycolysis occurs mainly in which location?
A.Cytoplasm
B.Mitochondrial matrix
C.Thylakoid lumen
D.Nuclear envelope
Explanation: Glycolysis is the cytoplasmic pathway that breaks glucose into pyruvate and produces a small amount of ATP and NADH. Later aerobic steps occur in mitochondria.
10What is the usual genetic result of mitosis in an animal somatic cell?
A.Four haploid cells with recombined chromosomes
B.Two genetically identical diploid daughter cells
C.One diploid cell and one haploid cell
D.Gametes with half the chromosome number
Explanation: Mitosis separates duplicated sister chromatids to form two daughter cells with the same chromosome number and genetic information as the parent cell. It supports growth and tissue repair.

About the Gaokao Biology Exam

Gaokao Biology assesses senior high-school biology concepts, scientific inquiry, and the ability to apply biological knowledge in unfamiliar real-life, production, health, ecological, and biotechnology contexts. Current official policy emphasizes foundation, integration, practice, innovation, experiment-based reasoning, and province-specific implementation. Because Biology timing, score conversion, and paper structure vary by province, candidates should pair this 100-question local practice bank with the latest notices and full papers from their own admissions examination authority.

Assessment

Gaokao Biology is administered through province-specific Gaokao or ordinary high-school academic level selective/level examination arrangements. Under many current reform models, candidates choose Biology as one of the selective subjects used with the required unified subjects; provinces publish their own schedule, paper format, item mix, scoring conversion, and university subject-combination rules. Official examples show variation: Guangdong lists Biology among six selective subjects, each 75 minutes and 100 points, with selected-response and non-selected-response items; Beijing's 2026 work rules list Biology as one of six level-exam subjects, scheduled for a 90-minute slot and converted to a 100-point subject score. Candidates should use this practice bank for concepts and reasoning, then confirm the exact current format with their provincial admissions authority.

Time Limit

Varies by province. Examples: Guangdong selective Biology is 75 minutes; Beijing's 2026 Biology level exam slot is 90 minutes. Confirm the current provincial schedule.

Passing Score

No national pass mark. Biology contributes to the candidate's Gaokao or selective-subject score, and admission depends on provincial control lines, ranking, subject-combination eligibility, and university/program cutoffs.

Exam Fee

Varies by province or municipality; registration and any exam fees are handled by provincial admissions examination authorities. (Ministry of Education of the People's Republic of China / National Education Examinations Authority, with provincial admissions examination authorities)

Gaokao Biology Exam Content Outline

Core area; province-specific weight varies

Molecules and Cells

Cellular molecules, water and inorganic salts, proteins, nucleic acids, membranes, organelles, enzymes, ATP, photosynthesis, respiration, mitosis, differentiation, senescence, apoptosis, and cancer.

Core area; province-specific weight varies

Genetics and Evolution

Meiosis, gamete formation, Mendelian inheritance, linkage, DNA structure and replication, gene expression, mutation, chromosome variation, population genetics, natural selection, speciation, and evolutionary evidence.

Core area; province-specific weight varies

Homeostasis and Regulation

Internal environment, neural regulation, hormonal regulation, blood glucose, water balance, immunity, plant hormones, tropisms, cell signaling, and physiological feedback.

Core area; province-specific weight varies

Organisms and Environment

Population characteristics and growth, community structure and succession, ecosystems, food webs, energy flow, material cycling, information transfer, stability, biodiversity, and environmental protection.

Integrated skill area; province-specific weight varies

Biotechnology, Experiments, and Data

Microbial culture, fermentation, enzyme technology, PCR, electrophoresis, genetic engineering, experimental controls, variables, sampling, chi-square reasoning, graph interpretation, and scientific argument.

How to Pass the Gaokao Biology Exam

What You Need to Know

  • Passing score: No national pass mark. Biology contributes to the candidate's Gaokao or selective-subject score, and admission depends on provincial control lines, ranking, subject-combination eligibility, and university/program cutoffs.
  • Assessment: Gaokao Biology is administered through province-specific Gaokao or ordinary high-school academic level selective/level examination arrangements. Under many current reform models, candidates choose Biology as one of the selective subjects used with the required unified subjects; provinces publish their own schedule, paper format, item mix, scoring conversion, and university subject-combination rules. Official examples show variation: Guangdong lists Biology among six selective subjects, each 75 minutes and 100 points, with selected-response and non-selected-response items; Beijing's 2026 work rules list Biology as one of six level-exam subjects, scheduled for a 90-minute slot and converted to a 100-point subject score. Candidates should use this practice bank for concepts and reasoning, then confirm the exact current format with their provincial admissions authority.
  • Time limit: Varies by province. Examples: Guangdong selective Biology is 75 minutes; Beijing's 2026 Biology level exam slot is 90 minutes. Confirm the current provincial schedule.
  • Exam fee: Varies by province or municipality; registration and any exam fees are handled by provincial admissions examination authorities.

Keys to Passing

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

Gaokao Biology Study Tips from Top Performers

1Build concept maps across cells, metabolism, genetics, homeostasis, ecology, and biotechnology so that unfamiliar contexts can be reduced to known principles.
2For experiment questions, identify the independent variable, dependent variable, controls, sample size, and controlled variables before reading the options.
3When interpreting graphs, describe the trend first, then connect it to a biological mechanism such as limiting factors, feedback, selection, or energy flow.
4For genetics items, write possible gametes and ratios before choosing an answer; many distractors come from using a memorized ratio in the wrong inheritance model.
5Use recent provincial papers for timing and constructed-response style because Biology exam length, score conversion, and item mix vary locally.

Frequently Asked Questions

Is Gaokao Biology a 100-question multiple-choice exam?

No. Official Biology papers vary by province and usually include selected-response plus constructed-response or integrated inquiry items. This page contains 100 original MCQs for focused practice.

How long is the Gaokao Biology exam?

Timing varies by province. Guangdong's selective Biology subject is 75 minutes, while Beijing's 2026 Biology level-exam slot is 90 minutes. Candidates should confirm their local schedule.

What score is needed to pass Gaokao Biology?

There is no national pass score for Biology. The score is used in provincial admission ranking and subject-combination eligibility, and universities set program requirements and cutoffs through provincial admission plans.

Does every province use the same Biology paper?

No. Biology is aligned to national curriculum and evaluation guidance, but paper structure, timing, score conversion, and subject-selection rules are published by provincial authorities.

What should I practice besides these MCQs?

Use province-specific full papers, constructed-response scoring practice, graph and table interpretation, genetics calculations, ecology data sets, and experiment-design questions with teacher feedback.