Free JAMB Biology CBT Practice Questions

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JAMB CBT BIOLOGY

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JAMB PHYSICS QUESTIONS
January, 2026

BIOLOGY JAMB QUESTIONS

Practice quick questions by answering 25 questions

About JAMB Biology CBT Practice on ExamHub

This free JAMB Biology CBT practice test is designed to help UTME candidates understand key Biology concepts tested in the Unified Tertiary Matriculation Examination. The questions are structured to reflect real JAMB CBT standards.

Candidates are advised to attempt all questions independently before viewing the correct answers and explanations. Regular practice improves speed, accuracy, and confidence during the actual JAMB examination.

ExamHub CBT is an independent educational platform and is not affiliated with JAMB. All materials are provided strictly for learning and examination practice purposes.

1. Why is oxygen necessary for seed germination?

A. To provide water for the seedling
B. To regulate soil temperature
C. To provide energy for cellular processes
D. To facilitate nutrient uptake from soil

2. Sudan Savannah is found in which part of Nigeria?

A. South-south
B. South-west
C. North-east
D. South-east

3. Which of the following organisms can be found in the mangrove swamp?

A. Desert tortoise
B. Freshwater fish
C. Mudskippers
D. Polar bear

4. The mineral required for the formation of red blood cells in animal cells is

A. Calcium
B. Sodium
C. Iron
D. iodine

5. Antibodies are found in

A. platelet
B. plasma
C. red blood cells`
D. white blood cells

6. Which type of circulation is present in arthropods and mollusks?

A. Double circulation
B. single circulation
C. open circulation
D. close circulation

7. which of the following is a mutualistic relationship

A. tapeworm and intestine
B. plasmodium and man
C. algae and fungi
D. lion and goat

8. birds moving away from their habitat due to unfavourable climate conditions is an example of

A. structural adaptation
B. behavioural adaptation
C. physiological adaptation
D. evolutionary adaptation

9. what part of the brain is responsible for smell

A. cerebellum
B. cerebral cortex
C. olfactory lobe
D. medulla oblongata

10. sharp claws and beaks are adaptations possessed by

A. heron
B. eagle
C. ostrich
D. penguin

11. which of the following promotes abscission

A. auxin
B. gibberellin
C. cytokinin
D. ethylene

12. which of the following organizations promote conservation of organisms

A. WHO
B. UNESCO
C. NAFDAC
D. WWF

13. Which of the following reduces wear and tear on bones?

A. Synovial membrane
B. Cartilage
C. Tendon
D. Muscles

14. A plant cell is plasmolyzed as a result of

A. Endosmosis
B. Endocytosis
C. Exosmosis
D. exocytosis

15. the soldier termite differs from the worker termite by

A. large abdomen and weak mandibles
B. large head and strong mandibles
C. small head and weak mandibles
D. small abdomen and strong mandibles
16. in a monohybrid cross between a tall plant (Tt) and a short plant (tt), the phenotypic ratio of the progeny will be A. 1:1
B. 1:2:1
C. 2:2
D. 3:1

17. A character that is expressed in a female only when it is homozygous but expresses itself in the male always is known as

A. Chromosomal trait
B. Allele
C. Sex-linked trait
D. Allelorph

18. Termite communicate by

A. Sound and smell
B. Touch and smell
C. Sound and touch
D. Sight and touch

19. The ABO blood grouping antigens are found on the surface of

A. Erythrocytes
B. Leucocytes
C. Platelets
D. Plasma

20. The distribution of tilapia fish is primarily affected by

A. Temperature
B. Water depth
C. Humidity
D. Pressure

21. Yellow fever is transmitted by which vector?

A. Female anopheles mosquito
B. Flea
C. Aedes mosquito
D. Sandfly

22. Air spaces are found in which structure of a plant?

A. Chloroplasts
B. Lenticels
C. Mitochondria
D. Ribosome

23. The cell wall of a plant cell is made up of

A. Cellulose
B. Protein
C. Sucrose
D. Peptidoglycan

24. The membrane of a vacuole is called

A. Phospholid bilayer
B. Cytoplasmic matrix
C. Cistern
D. Tonoplast

25. Which of the following is found in arid land?

A. Cactus
B. Water lettuce
C. Cotton
D. Shea butter
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