Biology is one of the most popular subjects in JAMB UTME, especially for students aspiring to study Medicine, Nursing, Pharmacy, Agriculture, and Biological Sciences. Every year, thousands of candidates search for the most important JAMB Biology topics because JAMB repeats questions from the same areas.
The good news is this: JAMB Biology is predictable. If you focus on the right topics and practice past questions, scoring high becomes much easier.
In this article, you’ll discover the most important and frequently tested JAMB Biology topics, why they matter, and how to prepare for them effectively.
1. Cell Structure and Organization
This is one of the most important JAMB Biology topics and appears almost every year.
Key Areas:
- Cell structure (plant and animal cells)
- Functions of cell organelles
- Levels of organization (cell → tissue → organ → system)
How to Prepare:
- Study diagrams carefully
- Memorise functions of each organelle
- Compare plant and animal cells
📌 Tip: JAMB loves diagram-based questions in this topic.
2. Ecology and Ecosystem
Ecology is a high-scoring and highly repeated topic in JAMB Biology.
Commonly Tested Areas:
- Food chains and food webs
- Ecological relationships (parasitism, symbiosis)
- Population dynamics
- Nutrient cycles (carbon, nitrogen, water)
- Environmental conservation
How to Prepare:
- Understand concepts instead of cramming
- Study diagrams and flow charts
- Practice past questions
3. Genetics and Heredity
Genetics is one of the most searched JAMB Biology topics due to its importance.
Key Areas:
- Mendelian inheritance
- Dominant and recessive traits
- Genotype and phenotype
- Sex determination
- Variation
How to Prepare:
- Practice genetic crosses
- Memorise key terms and ratios
- Understand how traits are passed
4. Nutrition and Digestion
This topic is simple but frequently tested.
What JAMB Tests:
- Modes of nutrition (autotrophic, heterotrophic)
- Photosynthesis
- Digestive system and enzymes
- Balanced diet and nutrients
How to Prepare:
- Learn digestive enzymes and their functions
- Study diagrams of the digestive system
- Understand photosynthesis stages
5. Reproduction in Plants and Animals
Reproduction questions appear almost every year in JAMB Biology.
Common Areas:
- Asexual and sexual reproduction
- Reproductive systems in humans
- Pollination and fertilization
- Menstrual cycle
How to Prepare:
- Study labelled diagrams
- Compare asexual vs sexual reproduction
- Practice past questions
6. Transport System
This topic focuses on how materials move within living organisms.
Key Areas:
- Transport in plants (xylem and phloem)
- Transport in animals (blood, heart, vessels)
- Circulatory system
How to Prepare:
- Memorise functions of blood components
- Understand movement of water and minerals in plants
7. Excretion, Respiration, and Homeostasis
These topics test your understanding of life processes.
What JAMB Tests:
- Excretory organs and wastes
- Types of respiration
- Homeostasis and body regulation
How to Prepare:
- Study diagrams of lungs and kidneys
- Understand differences between aerobic and anaerobic respiration
Why You Must Focus on These Topics
The most important JAMB Biology topics are repeated year after year. Focusing on them helps you:
- Reduce your study workload
- Answer questions faster
- Avoid confusion during the exam
- Score higher with confidence
Final Tips for Scoring High in JAMB Biology
✔ Study with the JAMB syllabus
✔ Practice past questions daily
✔ Focus on diagrams and definitions
✔ Avoid rushing during the exam
✔ Eliminate wrong options carefully
Conclusion
Scoring high in JAMB Biology is achievable when you focus on the most important JAMB Biology topics. With strong preparation in cell biology, ecology, genetics, nutrition, reproduction, and life processes, you can confidently aim for an excellent UTME score.
Recommended: Most Important JAMB Mathematics Topics You Must Study to Score High
Frequently Asked Questions (FAQ) on JAMB Biology
1. Is Biology compulsory in JAMB UTME?
No. Biology is not compulsory for all candidates, but it is required for courses such as Medicine, Nursing, Pharmacy, Agriculture, Biology, Microbiology, and related science courses.
2. Does JAMB repeat Biology questions?
Yes. JAMB frequently repeats Biology questions, either directly or by rephrasing them. Many questions come from the same important topics like ecology, genetics, and cell biology.
3. Which topic has the highest questions in JAMB Biology?
The topics with the highest number of questions are:
- Ecology
- Cell structure and organization
- Genetics and heredity
- Nutrition and digestion
Focusing on these topics can significantly improve your score.
4. Is JAMB Biology difficult?
JAMB Biology is not difficult if you understand concepts and study diagrams. Most questions test basic understanding, not complex theory.
5. How many questions does JAMB set from Biology?
JAMB sets 40 questions from Biology in the UTME exam.
6. How can I score high in JAMB Biology?
To score high:
- Study the JAMB syllabus
- Focus on important topics
- Practice past questions regularly
- Pay attention to diagrams and definitions
- Avoid guessing blindly
7. Are diagrams important in JAMB Biology?
Yes. Diagrams are extremely important. Many questions are based on:
- Labeling
- Identifying parts
- Understanding biological processes
8. Is studying past questions enough for JAMB Biology?
Past questions are very important, but they should be combined with:
- The official JAMB syllabus
- Understanding of concepts
- Revision of diagrams
9. Which textbook is best for JAMB Biology?
Recommended textbooks include:
- Essential Biology
- New School Biology
- Modern Biology
Always follow the JAMB syllabus while studying.
10. Can I score 250+ with Biology in JAMB?
Yes. Many candidates score 250+ by mastering high-yield Biology topics, practicing past questions, and managing time properly during the exam.
