2026 WAEC Biology (OBJ/ESSAY) Questions and Answers - MYDPORT

WAEC Biology Obj/Essay Questions and Answers – The 2026 WAEC May/June Biology examination will be based on the Senior Secondary School Biology syllabus. The paper will test candidates on both Objective (OBJ) and Essay (Theory) sections. 

WAEC 2026 Biology Exam Timetable

Wednesday, 27th May, 2026

• Biology 2 (Essay/Theory): 8:30 am – 10:10 am

• Biology 1 (Objective): 10:10 am – 11:10 am

2026 WAEC BIOLOGY (OBJ) OBJECTIVE ANSWERS: 

 

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2026 WAEC BIOLOGY (ESSAY) THEORY ANSWERS:

 

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WAEC Biology Past Questions (Samples for Practice)

OBJ Samples:

1. Which of the following is the basic unit of life?
   A. Tissue
   B. Organ
   C. Cell
   D. System
   Answer: C (Cell)

2. The process by which green plants manufacture food is called:
   A. Transpiration
   B. Photosynthesis
   C. Respiration
   D. Germination
   Answer: B (Photosynthesis)

3. The organ responsible for pumping blood in mammals is:
   A. Liver
   B. Kidney
   C. Heart
   D. Lungs
   Answer: C (Heart)

4. Which of these is NOT a vertebrate?
   A. Fish
   B. Bird
   C. Insect
   D. Mammal
   Answer: C (Insect)

Theory Samples:

1. (a) Define photosynthesis.
(b) State three conditions necessary for photosynthesis.

Answer:
(a) Photosynthesis is the process by which green plants manufacture food (glucose) using carbon dioxide, water, and sunlight, in the presence of chlorophyll.
(b) Conditions:

• Presence of sunlight

• Carbon dioxide

• Water

• Chlorophyll (in green plants)

2. List five differences between plant cells and animal cells.

Answer:

• Plant cells have cell walls; animal cells do not.

• Plant cells contain chloroplasts; animal cells do not.

• Plant cells usually have a large central vacuole; animal cells have small vacuoles.

• Plant cells are more rigid; animal cells are flexible.

• Plant cells store starch; animal cells store glycogen.

3. Explain three ways in which water is important to living organisms.

Answer:

• It is a medium for transportation of substances in plants and animals.

• It regulates body temperature.

• It is essential for photosynthesis.

• It aids digestion and excretion.