JAMB Key Point For Biology | Areas Of Concentration 2026/2027

JAMB Key Points for Biology 2026/2027: Important Topics to Study Are you searching for the JAMB Key Points for Biology 2026/2027? If you are preparing for the 2026/2027 Unified Tertiary Matriculation Examination (UTME), Biology is an important subject to prepare for thoroughly, especially if you intend to study courses such as Medicine, Nursing, Pharmacy, Medical Laboratory Science, Physiotherapy, Biochemistry, Microbiology, Agriculture and other science-related programmes. Biology covers a wide range of topics, including living organisms, cell structure, nutrition, reproduction, genetics, ecology, evolution and the relationship between organisms and their environment. The best way to prepare is to understand the concepts in the syllabus rather than relying on predictions of questions that may appear in the examination. This article contains a detailed list of JAMB Biology key points for 2026/2027, together with important areas to revise, study tips, common mistakes and frequently asked questions.

Important: This is a revision guide, not a leaked JAMB examination paper. No study guide can guarantee the exact questions that will appear in UTME. Candidates should always compare their preparation with the latest official JAMB syllabus and examination information.

Table of Contents

JAMB Biology Key Points 2026/2027

The major Biology areas candidates should revise include:

Characteristics of Living Organisms
Cell Structure and Organisation
Cell Division
Levels of Organisation
Classification of Living Organisms
Nutrition
Photosynthesis
Animal Nutrition
Digestive System
Transport System
Respiration
Excretion
Support and Movement
Reproduction
Growth
Coordination and Control
Hormones
Ecology
Adaptation
Population Studies
Food Chains and Food Webs
Natural Resources
Environmental Pollution
Conservation
Heredity and Variation
Genetics
Evolution
Adaptation and Survival
Reproductive Health and Biological Applications

These topics should be studied carefully rather than memorised without understanding.

1. Characteristics of Living Organisms

Begin your Biology revision with the characteristics that distinguish living organisms from non-living things. The common characteristics include:

Nutrition
Respiration
Movement
Growth
Reproduction
Excretion
Sensitivity or irritability
Adaptation

A useful memory aid is MRS GREN, although candidates should understand what each characteristic actually means. Important point Not every characteristic is equally obvious in every organism at every stage of life. For example, movement in plants is different from movement in animals.

2. Cell Structure and Organisation

The cell is one of the most important topics in Biology. A cell is the basic structural and functional unit of living organisms. Candidates should study:

Cell membrane
Cytoplasm
Nucleus
Mitochondria
Ribosomes
Vacuole
Chloroplast
Cell wall
Endoplasmic reticulum
Golgi apparatus

You should know the functions of the major cell organelles. Plant Cell vs Animal Cell A typical plant cell has structures such as:

Cell wall
Chloroplast
Large permanent vacuole

Animal cells do not have a cellulose cell wall or chloroplasts.

3. Cell Division

Cell division is important for growth, repair and reproduction. Study:

Mitosis
Meiosis
Stages of cell division
Importance of mitosis
Importance of meiosis
Differences between mitosis and meiosis

Mitosis

Mitosis produces daughter cells that are generally genetically similar to the parent cell and is important for growth and tissue repair.

Meiosis

Meiosis is involved in the formation of gametes and reduces the chromosome number by half. Candidates should understand the biological significance of each process.

4. Levels of Organisation

Living organisms can be organised into different levels. Study: Cell → Tissue → Organ → Organ System → Organism Examples include:

Muscle cells forming muscle tissue
Tissues forming organs
Organs working together as systems

Understanding these relationships makes many Biology questions easier.

5. Classification of Living Organisms

Classification involves grouping organisms based on similarities and differences. Study:

Kingdoms and major groups
Characteristics used in classification
Scientific naming
Binomial nomenclature
Differences between major groups of organisms

Candidates should learn the characteristics used to distinguish major groups.

6. Nutrition

Nutrition is the process by which organisms obtain and use nutrients. The official JAMB Biology syllabus includes modes and types of nutrition, including autotrophic and heterotrophic nutrition. Autotrophic Nutrition Organisms make their own organic food from simpler substances. Green plants are common examples. Heterotrophic Nutrition Organisms obtain nutrients from other organisms or organic materials. Examples include:

Holozoic nutrition
Parasitic nutrition
Saprophytic nutrition

7. Photosynthesis

Photosynthesis is one of the most important plant Biology topics. It is the process through which green plants use light energy to manufacture organic food from carbon dioxide and water. A simplified equation is: Carbon dioxide + Water → Glucose + Oxygen Light and chlorophyll are required. Candidates should understand:

Role of chlorophyll
Importance of light
Role of carbon dioxide
Production of oxygen
Formation of starch
Light and dark reactions at the appropriate level

The official syllabus specifically requires candidates to understand the conditions necessary for photosynthesis and experiments demonstrating the importance of light, carbon dioxide and chlorophyll.

8. Mineral Requirements of Plants

Plants require mineral elements for healthy growth. Study:

Macronutrients
Micronutrients
Nitrogen
Phosphorus
Potassium
Magnesium
Iron

Candidates should understand deficiency symptoms and the functions of important mineral elements. The official Biology syllabus specifically includes macro- and micronutrients and deficiency symptoms of elements such as nitrogen, phosphorus and potassium.

9. Animal Nutrition

Animal nutrition involves obtaining, digesting, absorbing and using nutrients. Study the major food classes:

Carbohydrates
Proteins
Fats and oils
Vitamins
Mineral salts
Water

Candidates should know:

Sources
Functions
Deficiency diseases
Food tests
Importance of balanced diet

10. Food Tests

Food tests are important practical Biology concepts. Candidates should know how to test for:

Starch

Iodine solution is commonly used.

Reducing Sugar

Benedict’s solution is commonly used.

Protein

Biuret test is commonly used.

Fat and Oil

A suitable lipid test can be used to detect fats and oils. Candidates should know the expected observations and conclusions for standard food tests.

11. Balanced Diet

A balanced diet contains appropriate amounts of the essential nutrients needed by the body. Study:

Carbohydrates
Proteins
Fats and oils
Vitamins
Minerals
Water
Fibre

Also study deficiency conditions associated with inadequate nutrition. The official syllabus includes conditions such as scurvy, rickets and kwashiorkor.

12. Digestive System

Candidates should understand the mammalian digestive system. Study:

Mouth
Oesophagus
Stomach
Small intestine
Large intestine
Rectum
Anus
Liver
Pancreas

Learn the functions of each major organ and the enzymes involved in digestion.

13. Digestive Enzymes

Important digestive enzymes include:

Amylase
Pepsin
Trypsin
Lipase
Maltase

Candidates should understand:

The food substrate acted upon
The products formed
Where the enzyme acts
Conditions required for enzyme activity

14. Mammalian Teeth

Candidates should study:

Incisors
Canines
Premolars
Molars

Understand their structures and functions. Also revise:

Dental formula
Types of teeth
Adaptation of teeth to feeding

The official Biology syllabus specifically includes mammalian teeth, their structures, types and functions.

15. Transport System

Transport is essential because cells need nutrients, oxygen and other substances. Study the transport systems in:

Plants
Animals

In plants Focus on:

Xylem
Phloem
Transpiration
Translocation
Water movement

In mammals Study:

Heart
Blood
Blood vessels
Circulation

16. Blood

Blood is a transport tissue. Study:

Red blood cells
White blood cells
Platelets
Plasma

Red Blood Cells They transport oxygen using haemoglobin. White Blood Cells They play important roles in body defence. Platelets They are involved in blood clotting. Plasma It transports dissolved substances throughout the body.

17. The Mammalian Heart

Candidates should understand:

Chambers of the heart
Valves
Major blood vessels
Pulmonary circulation
Systemic circulation
Double circulation

Learn the direction in which blood flows through the heart.

18. Respiration

Respiration releases energy from food. Study:

Aerobic respiration
Anaerobic respiration
Energy release
Differences between aerobic and anaerobic respiration

Aerobic Respiration It occurs in the presence of oxygen and releases energy from organic food molecules. Anaerobic Respiration It occurs without oxygen and produces less energy than aerobic respiration.

19. Gaseous Exchange

Study gaseous exchange in:

Plants
Mammals
Fish
Insects

Understand the role of structures such as:

Stomata
Lungs
Gills
Spiracles

20. Excretion

Excretion is the removal of metabolic waste products from an organism. In humans, important excretory organs include:

Kidneys
Lungs
Skin
Liver

Candidates should distinguish excretion from egestion. Excretion involves metabolic waste, while egestion is the removal of undigested food from the digestive tract.

21. The Kidney

Study:

Structure of the kidney
Nephron
Ultrafiltration
Selective reabsorption
Urine formation
Osmoregulation

Understand how the kidney helps maintain the internal environment of the body.

22. Support and Movement

Study support and movement in plants and animals.

Plants

Study:

Turgidity
Supporting tissues
Cell walls
Roots
Stems
Leaves

Animals

Study:

Skeleton
Joints
Muscles
Tendons
Ligaments

23. Internal Structure of Flowering Plants

Candidates should know the internal structures of:

Root
Stem
Leaf

Study:

Xylem
Phloem
Supporting tissues
Arrangement of tissues
Relationship between structure and function

The official JAMB syllabus specifically includes the internal structure of flowering plant organs and the distribution of supporting tissues.

24. Transpiration

Transpiration is the loss of water vapour from plant surfaces, particularly through the stomata. Study factors affecting transpiration such as:

Temperature
Humidity
Wind
Light intensity

Understand the importance of transpiration in plants.

25. Reproduction

Reproduction ensures the continuation of species. Study:

Asexual reproduction
Sexual reproduction
Male reproductive system
Female reproductive system
Fertilisation
Menstrual cycle
Pregnancy
Birth

26. Asexual Reproduction

Asexual reproduction involves reproduction without the fusion of male and female gametes. Examples include:

Binary fission
Budding
Vegetative propagation

Study advantages and disadvantages of asexual reproduction.

27. Sexual Reproduction

Sexual reproduction involves the fusion of male and female gametes. Study:

Gametes
Fertilisation
Zygote
Embryo
Variation

Understand the importance of sexual reproduction in producing genetic variation.

28. Reproductive System

Candidates should know the major reproductive organs and their functions.

Male reproductive organs

Study:

Testes
Sperm ducts
Prostate gland
Seminal vesicles
Penis

Female reproductive organs

Study:

Ovaries
Oviducts
Uterus
Cervix
Vagina

Focus on functions as well as names.

29. Growth

Growth is a permanent increase in size and dry mass associated with development. Study:

Growth in plants
Growth in animals
Growth curves
Conditions required for growth
Measurement of growth

Candidates should understand the difference between growth and development.

30. Coordination and Control

Coordination enables organisms to respond appropriately to changes in their environment. Study:

Nervous system
Receptors
Sense organs
Reflex actions
Hormonal coordination

31. Nervous System

Study:

Brain
Spinal cord
Neurons
Sensory neurons
Relay neurons
Motor neurons
Synapses

Understand how impulses travel through the nervous system.

32. Reflex Action

A reflex action is a rapid, automatic response to a stimulus. Study the reflex arc and the roles of:

Receptor
Sensory neuron
Relay neuron
Motor neuron
Effector

Practise questions that require you to arrange the pathway correctly.

33. Hormones

Hormones are chemical messengers produced by endocrine glands. Study important hormones and their functions. Examples include:

Insulin
Glucagon
Adrenaline
Thyroxine
Growth hormone
Oestrogen
Testosterone

Understand the glands that produce them and their major effects.

34. Homeostasis

Homeostasis is the maintenance of a relatively stable internal environment. Study:

Temperature regulation
Blood glucose regulation
Water balance
Role of hormones
Role of kidneys

Understand the concept of negative feedback at an appropriate level.

35. Ecology

Ecology deals with relationships between organisms and their environment. Study:

Habitat
Population
Community
Ecosystem
Biosphere
Biotic factors
Abiotic factors

36. Food Chains and Food Webs

A food chain shows how energy and nutrients pass from one organism to another through feeding relationships. Example: Grass → Grasshopper → Frog → Snake A food web consists of interconnected food chains. Candidates should understand:

Producers
Primary consumers
Secondary consumers
Tertiary consumers
Decomposers

37. Energy Flow in an Ecosystem

Energy enters most ecosystems through sunlight and is captured by producers. As energy moves through trophic levels, some energy is lost, largely through metabolic activities. Study:

Trophic levels
Food chains
Food webs
Energy transfer
Pyramids of energy

38. Population

A population is a group of organisms of the same species living in a particular area. Study factors affecting population size, including:

Birth rate
Death rate
Immigration
Emigration
Availability of food
Predation
Disease
Competition

39. Adaptation

Adaptation refers to features or characteristics that help organisms survive and reproduce in their environments. Study:

Structural adaptation
Behavioural adaptation
Physiological adaptation

Examples can be drawn from:

Desert plants
Aquatic animals
Forest organisms

40. Environmental Pollution

Pollution occurs when harmful substances or forms of energy enter the environment at levels that cause undesirable effects. Study:

Air pollution
Water pollution
Soil pollution
Noise pollution

Also learn the causes, effects and possible control measures.

41. Conservation

Conservation involves protecting natural resources and biological diversity. Study:

Wildlife conservation
Forest conservation
Soil conservation
Water conservation
National parks
Sustainable resource use

Understand why conservation is important for present and future generations.

42. Heredity and Variation

Heredity is the transmission of characteristics from parents to offspring. Variation refers to differences between individuals of the same species. Study:

Genes
Chromosomes
DNA
Alleles
Dominant traits
Recessive traits
Genotype
Phenotype

43. Genetics

Candidates should understand basic genetic principles. Study:

Mendelian inheritance
Monohybrid crosses
Genotype
Phenotype
Homozygous
Heterozygous
Dominant alleles
Recessive alleles

Practise genetic-cross questions using Punnett squares.

44. Sex Determination

In humans, biological sex is associated with sex chromosomes. Typically:

Female = XX
Male = XY

The sperm contributes either an X or Y chromosome, while the egg contributes an X chromosome. Candidates should understand the genetic basis of sex determination at the syllabus level.

45. Evolution

Evolution refers to changes in inherited characteristics of populations over generations. Study:

Evidence of evolution
Natural selection
Adaptation
Variation
Survival and reproduction
Evolutionary relationships

Understand how variation can contribute to natural selection.

46. Practical Biology

Candidates should not ignore practical Biology. Study how to:

Observe specimens
Identify structures
Record observations
Draw biological diagrams
Label diagrams correctly
Interpret tables
Interpret graphs
Analyse experimental results
Identify variables
Draw conclusions

Questions can test your ability to interpret biological information rather than simply recall definitions.

47. Biological Drawings

Practise drawing and labelling:

Plant cells
Animal cells
Root
Stem
Leaf
Flower
Heart
Kidney
Digestive system
Reproductive organs

When practising diagrams, focus on:

Correct proportions
Clear labels
Correct structures
Neatness
Appropriate titles

Important Biology Terms to Know for JAMB

Make sure you understand the meanings of:

Cell
Tissue
Organ
Organ system
Photosynthesis
Respiration
Diffusion
Osmosis
Transpiration
Excretion
Nutrition
Reproduction
Fertilisation
Hormone
Homeostasis
Ecosystem
Habitat
Population
Community
Adaptation
Heredity
Variation
Gene
Chromosome
Allele
Genotype
Phenotype
Natural selection

Do not simply memorise definitions. Learn how each concept works.

JAMB Biology Topics You Should Revise Carefully

For effective preparation, pay particular attention to:

Cell Biology

Cell structure
Cell organelles
Cell division
Organisation of living organisms

Plant Biology

Photosynthesis
Mineral nutrition
Transport
Transpiration
Plant support
Reproduction

Human Biology

Nutrition
Digestion
Respiration
Circulation
Excretion
Reproduction
Coordination
Homeostasis

Ecology

Ecosystems
Food chains
Food webs
Population
Adaptation
Pollution
Conservation

Genetics

Heredity
Variation
Mendelian inheritance
Chromosomes
Genes
Genotypes and phenotypes

Evolution

Natural selection
Adaptation
Evidence of evolutionary change

How to Study Biology for JAMB 2026/2027

1. Start With the Official Syllabus

Use the current JAMB syllabus as your checklist. The official Biology syllabus identifies the knowledge and skills candidates are expected to develop.

2. Understand Before Memorising

Biology contains many terms, but memorisation alone is not enough. For example, instead of simply memorising “xylem transports water,” understand how its structure makes this function possible.

3. Use Diagrams

Biology becomes easier when you study diagrams. Draw and label important structures yourself.

4. Practise Questions

After studying a topic, solve objective questions on it.

5. Review Your Mistakes

Keep a notebook containing questions you got wrong and the correct explanations.

6. Revise Regularly

Short, consistent revision sessions are generally more effective than leaving everything until the last few days.

7. Practise Practical Questions

Learn to identify specimens, interpret diagrams, analyse tables and understand experimental procedures.

How to Answer JAMB Biology Questions

Read the question carefully

Biology questions can contain small words that change the meaning. Pay attention to terms such as:

Except
Not
Most
Least
Mainly
Correct
Incorrect

Eliminate clearly wrong options

If you are unsure, remove the options that contradict basic Biology principles.

Think about the biological process

Do not choose an answer simply because it contains a familiar Biology term.

Use diagrams where helpful

For structure-related questions, mentally visualise or sketch the structure.

Common Mistakes JAMB Biology Candidates Should Avoid

1. Memorising Without Understanding

Understanding makes it easier to answer unfamiliar questions.

2. Ignoring Practical Biology

Diagrams, experiments and specimen identification are important study areas.

3. Confusing Similar Terms

For example:

Diffusion vs osmosis
Excretion vs egestion
Genotype vs phenotype
Habitat vs ecosystem
Mitosis vs meiosis

Learn the differences.

4. Ignoring Human Physiology

Do not focus only on plants or ecology.

5. Depending on “Sure Questions”

There is no legitimate way to guarantee the exact questions JAMB will set.

6. Failing to Revise Diagrams

Many biological structures are easier to understand visually.

JAMB Biology Past Questions

Past questions can be useful for preparation. They can help you:

Practise objective questions
Identify weak topics
Improve speed
Review biological concepts
Become familiar with question formats

However, past questions should be used alongside the current syllabus. Do not assume that a question that appeared in a previous examination will necessarily be repeated. The goal should be to understand the concept behind each question.

Sample JAMB Biology Revision Timetable

You can organise your Biology revision like this:

Day	Topic
Monday	Cell Biology and Classification
Tuesday	Plant Nutrition and Transport
Wednesday	Animal Nutrition and Human Physiology
Thursday	Reproduction, Growth and Coordination
Friday	Genetics, Heredity and Evolution
Saturday	Ecology and Conservation
Sunday	Practical Biology and Past Questions

You can adjust the timetable according to your other UTME subjects.

JAMB Biology Revision Checklist

Before the examination, make sure you have studied:

[ ] Characteristics of living organisms
[ ] Cell structure
[ ] Cell division
[ ] Classification
[ ] Nutrition
[ ] Photosynthesis
[ ] Mineral nutrition
[ ] Food tests
[ ] Digestive system
[ ] Mammalian teeth
[ ] Transport system
[ ] Blood
[ ] Heart
[ ] Respiration
[ ] Gaseous exchange
[ ] Excretion
[ ] Kidney
[ ] Support and movement
[ ] Plant structure
[ ] Transpiration
[ ] Reproduction
[ ] Growth
[ ] Nervous system
[ ] Hormones
[ ] Homeostasis
[ ] Ecology
[ ] Food chains
[ ] Food webs
[ ] Population
[ ] Adaptation
[ ] Pollution
[ ] Conservation
[ ] Heredity
[ ] Variation
[ ] Genetics
[ ] Evolution
Practical Biology

Frequently Asked Questions (FAQs)

What are the JAMB Key Points for Biology 2026/2027?

Important areas include cell biology, nutrition, photosynthesis, transport, respiration, excretion, reproduction, growth, coordination, ecology, adaptation, genetics, heredity, variation, evolution and practical Biology.

Are these leaked JAMB Biology questions?

No. They are Biology revision points based on syllabus areas. They are not leaked examination questions.

Which Biology topics should I study first?

Start with cell biology and basic biological concepts, then progress to nutrition, plant and animal physiology, reproduction, ecology, genetics and evolution.

Is practical Biology important for JAMB?

Yes. Candidates should practise interpreting biological diagrams, tables, graphs, experiments and specimens rather than studying only theoretical definitions.

Are JAMB Biology past questions useful?

Yes. Past questions can help with practice and revision, but they should not replace the current syllabus.

How can I improve my JAMB Biology score?

Study consistently, understand biological processes, practise questions, revise diagrams, learn important terms and review every mistake you make during practice.

Should I memorise Biology definitions?

You should know important definitions, but understanding the concept behind each definition is more useful than memorising words alone.

Can I rely only on JAMB Biology key points?

No. Use key points as a revision aid, but study the complete current syllabus and your recommended Biology textbook so that you do not miss important areas.

Conclusion

The JAMB Key Points for Biology 2026/2027 provide a useful roadmap for candidates preparing for the UTME. Biology covers a wide range of topics, so candidates should avoid studying only a few predicted areas and instead work through the syllabus systematically. Give serious attention to cell biology, nutrition, photosynthesis, transport, respiration, excretion, reproduction, growth, coordination, ecology, adaptation, genetics, heredity, variation, evolution and practical Biology. The official JAMB Biology syllabus specifically includes important areas such as plant structure, mammalian internal structure, nutrition, photosynthesis, mineral requirements and animal nutrition. For the best preparation, combine your syllabus with a reliable Biology textbook, past questions, diagrams and regular practice. Whenever you get a question wrong, find out why the answer is wrong instead of simply memorising the correct option. Do not depend on claims about “100% sure” questions or leaked examination materials. Such claims are not a substitute for proper preparation. Candidates should also verify their programme-specific requirements through JAMB’s official IBASS eligibility system because UTME subject requirements can differ according to the course and institution. The official eligibility checker allows candidates to select their institution, programme, O’Level subjects and UTME subject combination. Start your revision early, study consistently and practise under timed conditions. With proper preparation and a clear understanding of Biology concepts, you can approach the 2026/2027 JAMB UTME with greater confidence.