Cell Biology Quiz: 10 O/L Standard Questions

Test your knowledge of cell biology with these 10 exam-standard questions for WAEC, NECO, and GCE.Answer each question, then check your answers at the bottom.—Question 1Which organelle is known as the powerhouse of the cell?A) NucleusB) MitochondriaC) RibosomeD) Golgi ApparatusAnswer: B) MitochondriaExplanation: Mitochondria generate ATP through cellular respiration.—Question 2Which structure is found only in plant cells?A) Cell membraneB) MitochondriaC) Cell wallD) RibosomeAnswer: C) Cell wallExplanation: Plant cells have a rigid cell wall made of cellulose for support. Animal cells do not.—Question 3What is the function of the ribosome?A) Energy productionB) Protein synthesisC) Lipid storageD) Waste digestionAnswer: B) Protein synthesisExplanation: Ribosomes translate mRNA into protein chains.—Question 4Which organelle contains digestive enzymes that break down waste?A) NucleusB) VacuoleC) LysosomeD) ChloroplastAnswer: C) LysosomeExplanation: Lysosomes act as the cell’s recycling center.—Question 5What is the jelly-like substance that fills the cell?A) NucleoplasmB) CytoplasmC) MatrixD) Cell sapAnswer: B) CytoplasmExplanation: Cytoplasm holds organelles and is where many chemical reactions occur.—Question 6Which of the following is NOT part of the cell theory?A) All living things are made of cellsB) Cells are the basic unit of lifeC) All cells contain the same organellesD) Cells come from existing cellsAnswer: C) All cells contain the same organellesExplanation: Cell theory doesn’t claim all cells have the same organelles.—Question 7Which organelle captures sunlight to make food in plants?A) MitochondriaB) NucleusC) ChloroplastD) RibosomeAnswer: C) ChloroplastExplanation: Chloroplasts perform photosynthesis using chlorophyll.—Question 8What do eukaryotic cells contain that prokaryotic cells lack?A) Cell membraneB) Membrane-bound nucleusC) CytoplasmD) RibosomesAnswer: B) Membrane-bound nucleusExplanation: Eukaryotic cells have a true nucleus; prokaryotes do not.—Question 9What is the process of water diffusion across a membrane called?A) Active transportB) Facilitated diffusionC) OsmosisD) EndocytosisAnswer: C) OsmosisExplanation: Osmosis is the passive movement of water across a membrane.—Question 10Which organelle is responsible for packaging and secreting proteins?A) Rough ERB) NucleusC) Golgi apparatusD) RibosomeAnswer: C) Golgi apparatusExplanation: The Golgi apparatus modifies, sorts, and packages proteins.—Your ScoreHow many did you get correct? Count them up.0-3 correct: Needs more practice. Review the explanations and try again.4-6 correct: Good effort. Keep practicing.7-9 correct: Very good. You’re almost there.10 correct: Excellent! You’re ready for exam questions on cell biology.—Want more?Download Brainfueler for 10,000+ exam-standard questions across 8 subjects. Earn cash rewards for every quiz.Download now: [Insert your Play Store link]—Share this quiz:WhatsApp | Facebook | Twitter—Related quizzes:· Genetics Quiz· Human Anatomy Quiz· Ecology Quiz