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WAEC Biology Practice

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Question 1

Which organelle is responsible for producing energy in the form of ATP in a eukaryotic cell?

Cell structure and ultrastructureCell structure and ultrastructureeasy

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Question 2

During which phase of mitosis do chromosomes line up at the cell's equator?

Division of cellsDivision of cellsmedium

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Question 3

Which process describes the movement of water across a selectively permeable membrane?

Cell activities and transportCell activities and transporteasy

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Question 4

Which pigment primarily absorbs light energy for photosynthesis?

Photosynthesis and respirationPhotosynthesis and respirationeasy

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Question 5

What is the main function of ribosomes in the cell?

Cell structure and ultrastructureCell structure and ultrastructureeasy

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Question 6

Which one of the following is a product of photosynthesis?

Photosynthesis and respirationPhotosynthesis and respirationmedium

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Question 7

Which type of cell division results in four genetically different haploid cells?

Division of cellsDivision of cellsmedium

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Question 8

Which of the following best explains why enzymes are essential in biological systems?

Cell activities and transportCell activities and transportmedium

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Question 9

Which organelle is primarily involved in the modification, sorting, and packaging of proteins?

Cell structure and ultrastructureCell structure and ultrastructuremedium

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Question 10

Which of the following best describes the function of the cell membrane?

Cell structure and ultrastructureCell structure and ultrastructureeasy

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Question 11

Which type of transport requires energy to move substances against their concentration gradient?

Cell activities and transportCell activities and transporteasy

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Question 12

Which level of organization is correctly arranged from simplest to most complex?

Levels of organizationLevels of organizationmedium

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Question 13

Which part of the plant cell contains chlorophyll for photosynthesis?

Cell structure and ultrastructureCell structure and ultrastructureeasy

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Question 14

Which process is responsible for the uptake of large particles or cells by the cell membrane?

Cell activities and transportCell activities and transportmedium

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Question 15

In which phase of mitosis do sister chromatids separate and move towards opposite poles?

Division of cellsDivision of cellsmedium

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Question 16

Which of the following structures is found only in plant cells?

Cell structure and ultrastructureCell structure and ultrastructureeasy

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Question 17

What is the main purpose of cellular respiration?

Photosynthesis and respirationPhotosynthesis and respirationeasy

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Question 18

Which of the following is NOT a characteristic of prokaryotic cells?

Cell structure and ultrastructureCell structure and ultrastructuremedium

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Question 19

Which of the following best describes the function of the vacuole in plant cells?

Cell structure and ultrastructureCell structure and ultrastructureeasy

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Question 20

Which process involves the division of the cytoplasm at the end of cell division?

Division of cellsDivision of cellsmedium

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Question 21

Which of the following is a function of the rough endoplasmic reticulum?

Cell structure and ultrastructureCell structure and ultrastructuremedium

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Question 22

Which of the following best explains the term 'selectively permeable membrane'?

Cell activities and transportCell activities and transporteasy

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Question 23

Which of the following best describes the function of enzymes during digestion?

NutritionNutritioneasy

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Question 24

What is the primary function of the xylem in vascular plants?

Levels of organizationLevels of organizationmedium

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Question 25

Which of the following is a characteristic of meiosis but NOT mitosis?

Division of cellsDivision of cellsmedium

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Question 26

Which chemical element is essential for the formation of amino acids and proteins?

NutritionNutritioneasy

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Question 27

Which gas is produced during aerobic respiration?

Photosynthesis and respirationPhotosynthesis and respirationeasy

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Question 28

Which structure controls the passage of substances in and out of the nucleus?

Cell structure and ultrastructureCell structure and ultrastructuremedium

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Question 29

Which of the following best explains why water is important in osmoregulation?

Excretion and osmoregulationExcretion and osmoregulationeasy

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Question 30

Which of the following best describes natural selection?

Variation and evolutionVariation and evolutionmedium

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Question 31

In which organ does most nutrient absorption occur in humans?

NutritionNutritioneasy

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Question 32

Which of the following is not a function of the skeleton in humans?

Levels of organizationLevels of organizationmedium

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Question 33

Which of the following best describes the function of the stomata in leaves?

Levels of organizationLevels of organizationmedium

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Question 34

Which of the following is true about DNA?

Heredity and geneticsHeredity and geneticseasy

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Question 35

Which of the following best explains the role of the pancreas in digestion?

NutritionNutritionmedium

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Question 36

Which of the following statements about alleles is correct?

Heredity and geneticsHeredity and geneticsmedium

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Question 37

Which of the following best describes the term 'ecosystem'?

EcologyEcologyeasy

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Question 38

Which of these best demonstrates an example of adaptation?

Adaptation and natural selectionAdaptation and natural selectionmedium

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Question 39

Which of the following best describes the role of the liver in excretion?

Excretion and osmoregulationExcretion and osmoregulationmedium

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Question 40

Which of the following is true about genetic variation?

Variation and evolutionVariation and evolutionmedium

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Question 41

Which of the following is a process by which plants lose water vapor to the atmosphere?

Excretion and osmoregulationExcretion and osmoregulationeasy

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Question 42

Which of the following is NOT a product of photosynthesis?

Photosynthesis and respirationPhotosynthesis and respirationeasy

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Question 43

Which of the following best explains why cells are small in size?

Cell structure and ultrastructureCell structure and ultrastructuremedium

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Question 44

Which of the following is a sexual mode of reproduction?

ReproductionReproductioneasy

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Question 45

Which of the following best describes the function of the phloem in plants?

Levels of organizationLevels of organizationeasy

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Question 46

Which of the following best describes the role of the hypothalamus?

Coordination and responsivenessCoordination and responsivenessmedium

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Question 47

Which of the following is an example of a behavioral adaptation?

Adaptation and natural selectionAdaptation and natural selectionmedium

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Question 48

Which of the following best describes the function of the kidneys?

Excretion and osmoregulationExcretion and osmoregulationeasy

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Question 49

Which of the following best describes the role of the DNA in a cell?

Heredity and geneticsHeredity and geneticseasy

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Question 50

Which of the following is a function of the large intestine?

NutritionNutritioneasy

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Question 51

Which of the following best explains the term 'homeostasis'?

Coordination and responsivenessCoordination and responsivenesseasy

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Question 52

Which of the following is NOT a characteristic of living things?

Growth and developmentGrowth and developmenteasy

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Question 53

Which of the following best explains the function of chlorophyll?

Photosynthesis and respirationPhotosynthesis and respirationeasy

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Question 54

Which of the following best describes the role of mRNA during protein synthesis?

Heredity and geneticsHeredity and geneticsmedium

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Question 55

Which biochemical process occurs in the mitochondria?

Photosynthesis and respirationPhotosynthesis and respirationeasy

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Question 56

Which of the following best describes osmoregulation?

Excretion and osmoregulationExcretion and osmoregulationmedium

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Question 57

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

EcologyEcologyeasy

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Question 58

Which of the following best explains the role of ATP in cells?

Cell activities and transportCell activities and transportmedium

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Question 59

Which of the following describes a vestigial organ?

Variation and evolutionVariation and evolutionhard

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Question 60

Which of the following is an example of mutualism?

Interdependence of organismsInterdependence of organismsmedium

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Question 61

Which of the following hormones regulates the menstrual cycle in females?

Coordination and responsivenessCoordination and responsivenessmedium

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Question 62

Which of the following best describes an ecosystem's energy flow?

Energy flow and cyclesEnergy flow and cyclesmedium

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Question 63

Which of the following is an example of asexual reproduction?

ReproductionReproductioneasy

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Question 64

Which of the following is the main site of gas exchange in human lungs?

Coordination and responsivenessCoordination and responsivenessmedium

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Question 65

Which of the following best describes genetic mutation?

Heredity and geneticsHeredity and geneticsmedium

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Question 66

Which of the following is an example of a producer in an ecosystem?

EcologyEcologyeasy

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Question 67

Which of the following best explains why cells need to divide?

Division of cellsDivision of cellseasy

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Question 68

Which of the following best describes an adaptation?

Adaptation and natural selectionAdaptation and natural selectionmedium

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Question 69

Which of the following best describes the role of a decomposer in an ecosystem?

Energy flow and cyclesEnergy flow and cyclesmedium

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Question 70

Which of the following best describes the function of the human circulatory system?

Levels of organizationLevels of organizationmedium

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Question 71

Which of the following is true about anaerobic respiration?

Photosynthesis and respirationPhotosynthesis and respirationmedium

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Question 72

Which of the following best explains the role of the nervous system?

Coordination and responsivenessCoordination and responsivenessmedium

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Question 73

Which of the following best describes the process of fertilization?

ReproductionReproductioneasy

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Question 74

Which of the following best explains the term 'genotype'?

Heredity and geneticsHeredity and geneticsmedium

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Question 75

Which of the following best describes a food chain?

Energy flow and cyclesEnergy flow and cycleseasy

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Question 76

Which of the following best describes the function of the endocrine system?

Coordination and responsivenessCoordination and responsivenessmedium

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Question 77

Which of the following best explains why biodiversity is important?

EcologyEcologymedium

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Question 78

Which of the following best describes the role of tRNA during protein synthesis?

Heredity and geneticsHeredity and geneticsmedium

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Question 79

Which of the following best describes the process of transpiration?

Excretion and osmoregulationExcretion and osmoregulationeasy

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Question 80

Which of the following best explains the process of natural selection?

Variation and evolutionVariation and evolutionmedium

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Question 81

Which of the following best describes the role of phagocytes in the immune system?

Coordination and responsivenessCoordination and responsivenessmedium

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Question 82

Which of the following best describes the role of the cell wall in plant cells?

Cell structure and ultrastructureCell structure and ultrastructureeasy

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Question 83

Which of the following best describes the function of the hormone insulin?

Coordination and responsivenessCoordination and responsivenessmedium

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Question 84

Which of the following best describes the function of the Golgi apparatus?

Cell structure and ultrastructureCell structure and ultrastructuremedium

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Question 85

Which of the following best describes the function of the ribosome?

Cell structure and ultrastructureCell structure and ultrastructureeasy

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Question 86

Which of the following best explains the role of stomata in plants?

Levels of organizationLevels of organizationeasy

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Question 87

Which of the following best describes the process of mitosis?

Division of cellsDivision of cellsmedium

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Question 88

Which of the following best explains the function of enzymes?

Cell activities and transportCell activities and transportmedium

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Question 89

Which of the following best describes an ecosystem?

EcologyEcologyeasy

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