Biology Waec Past Questions And Answers (Objective and Theory)

Here’s a set of 20 WAEC Biology questions, including a theory section with 5 questions. Each question comes with multiple-choice options, and the correct answers are indicated.

 

Multiple Choice Section:

Which of the following is not a characteristic of living organisms?

 

A) Growth

B) Reproduction

C) Movement

D) Magnetism

Answer: D) Magnetism

 

What is the primary function of the mitochondria in a cell?

 

A) Photosynthesis

B) Cellular respiration

C) Protein synthesis

D) DNA replication

Answer: B) Cellular respiration

 

Which organelle is responsible for packaging and transporting proteins within the cell?

 

A) Golgi apparatus

B) Endoplasmic reticulum

C) Nucleus

D) Mitochondria

Answer: A) Golgi apparatus

 

In a food chain, which trophic level represents the primary consumers?

 

A) Producers

B) Herbivores

C) Carnivores

D) Decomposers

Answer: B) Herbivores

 

What is the main function of red blood cells in the human body?

 

A) Transporting oxygen

B) Fighting infections

C) Producing hormones

D) Storing nutrients

Answer: A) Transporting oxygen

 

Which process is responsible for the formation of gametes?

 

A) Mitosis

B) Meiosis

C) Fertilization

D) Binary fission

Answer: B) Meiosis

 

What is the role of the chloroplast in plant cells?

 

A) Cellular respiration

B) Photosynthesis

C) DNA replication

D) Protein synthesis

Answer: B) Photosynthesis

 

Which of the following is an example of a renewable resource?

 

A) Coal

B) Natural gas

C) Solar energy

D) Petroleum

Answer: C) Solar energy

 

What is the function of the ribosomes in a cell?

 

A) Energy production

B) Protein synthesis

C) Lipid storage

D) Waste elimination

Answer: B) Protein synthesis

 

Which of the following is a biotic factor in an ecosystem?

 

A) Sunlight

B) Soil

C) Plants

D) Water

Answer: C) Plants

 

Theory Section:

Explain the process of osmosis in plant cells. (5 marks)

 

Describe the structure and function of the human respiratory system. (5 marks)

 

Discuss the importance of biodiversity in maintaining ecological balance. (5 marks)

 

Explain the differences between mitosis and meiosis. (5 marks)

 

Describe the stages of the water cycle and its significance in the environment. (5 marks).