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WAEC Biology – Sierra Leone

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Question 251

What is the main pigment involved in photosynthesis that absorbs light energy?
Photosynthesis and respirationPhotosynthesis and respirationmedium

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Question 252

Which type of nutrition involves an organism synthesizing its own food from inorganic substances?
NutritionNutritioneasy

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Question 253

Which human organ is primarily responsible for removing nitrogenous waste from the blood?
Excretion and osmoregulationExcretion and osmoregulationmedium

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Question 254

Which hormone regulates blood glucose levels by lowering high blood sugar?
Coordination and responsivenessCoordination and responsivenessmedium

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Question 255

Which principle explains how natural selection leads to evolution?
Variation and evolutionVariation and evolutionhard

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Question 256

Which cell organelle is primarily responsible for energy production in the form of ATP?
Cell structure and ultrastructureCell structure and ultrastructureeasy

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Question 257

Which phase of mitosis is characterized by chromosomes lining up at the cell equator?
Division of cellsDivision of cellsmedium

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Question 258

Which specialized cell type is primarily responsible for transporting water in plants?
Cell specializationCell specializationmedium

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Question 259

Which pigment is mainly responsible for capturing light energy during photosynthesis?
Photosynthesis and respirationPhotosynthesis and respirationeasy

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Question 260

Which of the following best describes the role of enzymes during digestion?
NutritionNutritionmedium

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