Waec Gce Biology Exam (2025/2026): Full List Of Most Repeated Topics & Past Questions

The WAEC GCE Biology exam remains one of the most important science subjects for students aiming to study Medicine, Nursing, Agriculture, Biochemistry, or Environmental Science. Whether you're writing the first or second series in 2025/2026, the smartest way to prepare is to study the most repeated questions and understand the core topics WAEC loves to bring back.

This guide breaks everything down—from repeated topics and solved past questions to the exam structure and helpful tips to pass confidently.

What You’ll Learn

• WAEC GCE Biology paper format

• Most repeated topics over the years

• Past objective and theory questions

• Practical (alternative) questions

• Smart revision and exam tips

WAEC GCE Biology Exam Format

Most Repeated Topics in WAEC GCE Biology

WAEC GCE Biology Past Questions (Samples)

Objective Questions (Paper 1)

1. Which of the following is a function of the cell membrane?
   A. Protein synthesis
   B. Control of substance movement
   C. Energy production
   D. DNA replication
   ✅ Correct Answer: B

2. Which of the following processes is involved in photosynthesis?
   A. Breaking down glucose
   B. Conversion of light energy to chemical energy
   C. Absorption of oxygen
   D. Formation of lactic acid
   ✅ Correct Answer: B

Essay Questions (Paper 2)

Question 1 (Repeated):
Describe the structure and functions of the mammalian heart.

Answer Outline:

• Four chambers: right/left atrium, right/left ventricle

• Valves: tricuspid, bicuspid, semilunar

• Functions: pumps oxygenated and deoxygenated blood, separates blood flow

Question 2 (Likely):
Explain five differences between plant and animal cells.

Question 3 (Repeated):
Discuss three agents of pollination and the features of flowers adapted to each.

• Wind: small, light pollen, exposed stamens

• Insects: bright petals, scent, nectar guides

• Water: lightweight pollen that floats

Biology Practical – WAEC GCE Paper 3 (Alternative to Practical)

You’ll answer theory-based practical questions involving diagrams and specimens.

Sample Practical Question:

The diagram below shows parts of the human ear. Label A to E and state the function of each part.

Tip: Learn diagrams of:

• The leaf

• The eye and ear

• Respiratory system

• Male and female reproductive systems

• The kidney

• Tapeworm and mosquito

Most Repeated Topics by Year

Top Tips to Score High in WAEC GCE Biology

1. Draw diagrams – Practice accurate labeling and clean sketches.

2. Solve past questions – Focus on 2015–2024. Many are repeated.

3. Memorize definitions – Short and precise. WAEC loves clear definitions.

4. Study in topics – Master one area before moving to another.

5. Revise practicals – Don’t ignore the Alternative to Practical paper.

6. Use flashcards – Great for remembering functions and parts of organisms.

7. Manage your time – Answer theory questions within 20 minutes each.

WAEC GCE Biology FAQs

Q: Is Biology hard in WAEC GCE?
Not if you focus on repeated topics, draw clear diagrams, and answer past questions consistently.

Q: Do I need to label diagrams in theory paper?
Yes, and marks are awarded for correct labeling and neatness.

Q: Are there calculation questions in Biology?
Only simple ones related to population density, genetics (e.g., Punnett squares), or respiration.

Q: Can I pass Biology without a practical lab?
Yes. WAEC offers “Alternative to Practical” where you're tested using diagrams and observations instead of live specimens.

Final Thoughts

Biology can be one of your easiest A1s in WAEC GCE—if you study smart. Focus on diagrams, definitions, and most repeated questions. Practice writing your answers clearly and don't forget to prepare well for the Alternative to Practical paper.

“Biology is life. The more you understand it, the better you perform in the exam.”