Gaokao Biology

Gaokao Biology Questions PDF: Practice Mock Test Paper 2025

Practice free online Gaokao Biology sample mock test questions: Download solved NCEE Biology model exam PDF papers with MCQ Quiz.

Practice Gaokao Biology Questions - Online Quiz

In a dihybrid cross between two heterozygous plants (AaBb × AaBb), what is the probability of obtaining an offspring that is homozygous recessive for both traits?
  • 1/8
  • 1/4
  • 1/16
  • 3/16
Which of the following processes requires both ATP and membrane protein involvement in eukaryotic cells?
  • Osmosis
  • Facilitated diffusion
  • Simple diffusion
  • Active transport
Which of the following bonds maintains the secondary structure of proteins?
  • Peptide bonds
  • Hydrogen bonds
  • Disulfide bonds
  • Ionic bonds
Which technique allows the amplification of a specific DNA sequence without using a living organism?
  • Gel electrophoresis
  • Gene cloning
  • Southern blotting
  • Polymerase Chain Reaction (PCR)
During the light-dependent reactions of photosynthesis, what is the primary electron donor that initiates the flow of electrons through photosystem II?
  • NADPH
  • Water (H₂O)
  • Chlorophyll b
  • ATP
Which of the following provides the strongest molecular evidence for common ancestry among diverse species?
  • Vestigial structures
  • Conserved DNA sequences
  • Homologous organs
  • Fossil records
Which hormone increases blood glucose by promoting glycogen breakdown in the liver?
  • Insulin
  • Thyroxine
  • Glucagon
  • Adrenaline
Which of the following best describes the ultimate source of energy for most ecosystems on Earth?
  • Chemical bonds in organic molecules
  • Geothermal energy
  • ATP from producers
  • Solar radiation
Which of the following events occurs during the acrosomal reaction in human fertilization?
  • Meiosis II in the egg completes
  • Enzymes digest the zona pellucida
  • Blastocyst implantation
  • Zygote cleavage begins
In an experiment measuring enzyme activity, why is it important to maintain a constant pH throughout the process?
  • pH affects temperature stability
  • pH changes can alter the enzyme’s active site
  • pH increases substrate concentration
  • pH ensures buffer saturation

Top 10 Gaokao Biology Topics (Ranked by Importance)

Here are the Top 10 Most Important Biology Topics for Gaokao (China's National College Entrance Exam), based on syllabus focus, question trends, and high scoring potential:

1. Genetics & Inheritance (遗传与变异)

  • Mendelian laws (monohybrid, dihybrid)
  • Genetic diagrams & probabilities
  • Sex-linked traits
  • Pedigree analysis
  • DNA structure, replication, transcription, translation

2. Cell Structure & Function (细胞结构与功能)

  • Cell membrane transport
  • Organelles & their functions (mitochondria, ribosomes)
  • Enzymes & energy conversions
  • Cell cycle & division (mitosis, meiosis)

3. Biological Macromolecules (生物大分子)

  • Proteins, carbohydrates, lipids, nucleic acids
  • Structure and function
  • Enzyme characteristics and action

4. Molecular Biology & Biotechnology (分子生物学与生物技术)

  • Genetic engineering
  • PCR, electrophoresis
  • Recombinant DNA technology
  • Cloning, gene therapy

5. Photosynthesis & Cellular Respiration (光合作用与细胞呼吸)

  • Light & dark reactions
  • Calvin cycle
  • Aerobic vs anaerobic respiration
  • ATP production

6. Evolution & Natural Selection (生物进化与自然选择)

  • Evidence of evolution
  • Mechanisms of evolution
  • Darwin's theory, speciation

7. Human Physiology & Health (人体生理与健康)

  • Nervous, endocrine, circulatory systems
  • Immunity, hormones, homeostasis
  • Vaccines, infectious diseases

8. Ecology & Ecosystems (生态系统与环境保护)

  • Food chains/webs
  • Biogeochemical cycles (carbon, nitrogen)
  • Biodiversity, energy flow
  • Environmental issues

9. Reproduction & Development (生殖与发育)

  • Asexual vs sexual reproduction
  • Human reproductive system
  • Embryonic development

10. Experimental Skills & Data Interpretation (实验设计与数据分析)

  • Reading experimental design questions
  • Graph interpretation
  • Scientific method
  • Error analysis, conclusions

Gaokao Mock Test

What is Gaokao Biology Exam 2025?

Gaokao Biology Exam 2025 Details
Name of the ExamNational College Entrance Examination (NCEE) Written Exam 2025
SubjectBiology
Type of QuestionsObjective-type Multiple Choice Questions (MCQs)
Exam ModeOnline Computer-based Test (CBT) Quiz

What is Gaokao Biology Practice Test?

Biology mock tests are model tests for the online practice of the NCEE exam. This helps students create a better exam preparation strategy. If you treat Gaokao Biology practice tests as actual tests, you will perform well in the actual National College Entrance Examination (NCEE) exam as well. So instead of just rote learning concepts, practice Gaokao Biology practice tests to measure your strengths and weakness. Gaokao Biology mocks will help you in developing an effective study strategy.

As per the new exam pattern of Gaokao exam, it is necessary to include Biology practice tests in your preparation strategy.

What is Gaokao Biology Quiz?

Biology Quiz is an online assessment tool used as a light form of a test to check candidate's knowledge. We have designed the following Gaokao Biology practice test series that will provide you with in-depth coverage of the latest syllabus.