WAEC SSCE Biology Paper 1 – 2024 (Sample, Objective)
Many students spend weeks memorising biology facts but still stumble on exam day because they haven't practised spotting the pattern in how WAEC frames questions about cell structure, inheritance, and ecosystem dynamics. This sample paper mirrors the real WAEC SSCE Biology Paper 1 — 18 carefully chosen multiple-choice, true/false, and fill-in-the-blank questions that test your ability to apply concepts from cell biology, genetics, physiology, and ecology under timed pressure. It's designed for SS 3 students revising for the WAEC examination, spanning all major syllabus areas from organelle function to genetic crosses to conservation. By the time you finish and check your working against the solutions, you'll be able to walk into the exam room confident that you can instantly identify what a question is really asking — and which mark-scheme bullet point you need to hit.
Questions in this quiz
Answers hidden — play to find out.
- Question 1
Which organelle is responsible for synthesising proteins in both prokaryotic and eukaryotic cells?
- Question 2
The cell membrane is said to be selectively permeable. Which statement best explains this property?
- Question 3
In a monohybrid cross between two heterozygous organisms (Aa × Aa), what is the expected ratio of phenotypes in the F₁ generation?
- Question 4
A carrier of a recessive genetic disorder is heterozygous for that trait. True or False?
- Question 5
Which of the following is NOT a function of the mitochondrion?
- Question 6
The process by which glucose is broken down to pyruvate in the absence of oxygen is called:
- Question 7
In plant cells, the movement of water across a partially permeable membrane into a hypertonic solution (higher solute concentration outside) is called:
- Question 8
In a food chain, the primary consumers are always herbivores. True or False?
- Question 9
Which of the following organisms would be classified as a decomposer in an ecosystem?
- Question 10
The rough endoplasmic reticulum is studded with ribosomes on its cytoplasmic surface. What is the primary function of this organelle?
- Question 11
If a plant is heterozygous for seed colour (Yy, where Y = yellow and y = green), and a homozygous recessive plant (yy) is crossed with it, the expected F₁ phenotypic ratio would be:
- Question 12
Translocation in plants refers to the movement of sugars and other organic compounds through the phloem from source to sink. True or False?
- Question 13
Which adaptation is typically found in desert-dwelling plants to reduce water loss through transpiration?
- Question 14
In the human circulatory system, which type of blood vessel carries oxygenated blood away from the heart?
- Question 15
The process by which light energy is converted into chemical energy in the form of glucose is called:
- Question 16
Which of the following correctly lists the order of taxonomic classification from broadest to most specific?
- Question 17
Energy transfer between trophic levels in an ecosystem is approximately 10% efficient. This means that if producers capture 100,000 kJ of energy, primary consumers will have access to approximately: