WASSCE/WAEC Biology (2023) Past Questions
WASSCE/WAEC Biology past questions for 2023 will help you experience how WAEC Questions feel like and if you have been looking for it then here is it.
In this article you are going to get the complete questions (past question) and equally their answers to make things very easy for you, study with it and prepare well for your exam.
WASSCE/WAEC Biology 2023 Past Questions
Below are the ast questions on biology;
- Which of the following statements about living things is correct?
- (a) Animals respire using carbon (IV) oxide as a raw material
- (b) Growth in plants is limited after some time
- (c) Most plants respond to stimuli slowly
- (d) Higher animals can reproduce asexually
The correct answer is: (c) Most plants respond to stimuli slowly
- Organ level of organization in living things is found in:
- (a) Waterleaf plant
- (b) Virus particle
- (c) Kidney
- (d) Spermatozoon
The correct answer is: (c) Kidney
- From the diagram above, which of the following statements is not correct? Diagrams X and Y are sections of:
- (a) Roots
- (b) A dicotyledonous root and monocotyledonous root respectively
- (c) Vascular bundles
- (d) Stems
The correct answer is: (d) Stems
- From the diagram above, the part responsible for conducting water and dissolved mineral salts from the soil to the leaves is labelled:
- (a) I
- (b) II
- (c) III
- (d) IV
The correct answer is: (a) I
- From the diagram above, the part labelled II is the:
- (a) Pith
- (b) Xylem
- (c) Phloem
- (d) Endodermis
The correct answer is: (a) Pith
- The organelles in cells which are also referred to as suicidal bags are the:
- (a) Mitochondria
- (b) Lysosomes
- (c) Ribosomes
- (d) Nuclei
The correct answer is: (b) Lysosomes
- The process that brings about the shrinking of a spirogyra cell when placed in a strong solution is:
- (a) Osmosis
- (b) Autolysis
- (c) Plasmolysis
- (d) Diffusion
The correct answer is: (c) Plasmolysis
- The region of a plant stem in which cells divide to increase its diameter is the:
- (a) Cambium
- (b) Phloem
- (c) Xylem
- (d) Collenchyma
The correct answer is: (a) Cambium
- The total number of caudal vertebrae in animals X and Y is 4 and 27 respectively. The animals are likely to be:
- (a) Fish and human
- (b) Toad and rat
- (c) Toad and fish
- (d) Humans and rat
The correct answer is: (d) Humans and rat
- Which of the following blood components has the greatest affinity for oxygen and carbon (IV) oxide?
- (a) Lymphocyte
- (b) Erythrocyte
- (c) Blood plasma
- (d) Thrombocyte
The correct answer is: (b) Erythrocyte
- From the following processes above, which of the processes take place during inspiration?
- (a) I and III only
- (b) II and III only
- (c) II and IV only
- (d) III and IV only
The correct answer is: (a) I and III only
- From the process above, which of the processes is a direct result of contraction of the intercostal muscles?
- (a) I
- (b) II
- (c) III
- (d) IV
The correct answer is: (a) I
- The process by which the amount of water and solute in the blood are controlled is known as:
- (a) Haemolysis
- (b) Diffusion
- (c) Turgidity
- (d) Osmoregulation
The correct answer is: (d) Osmoregulation
- From the diagram above, which of the following hormones are I, II, III and IV respectively?
- (a) ADH, Glucagon, Oestrogen, Adrenaline
- (b) Adrenaline, Glucagon, Oestrogen, ADH
- (c) Glucagon, ADH, Oestrogen, Adrenaline
- (d) Adrenaline, ADH, Oestrogen, Glucagon
The correct answer is: (d) Adrenaline, ADH, Oestrogen, Glucagon
- From the diagram above, the hormone responsible for anxiety is:
- (a) I
- (b) II
- (c) III
- (d) IV
The correct answer is: (a) I
- From the above diagram, the part labelled I are the:
- (a) Semi-circular canals
- (b) Ossicles
- (c) Cochlea
- (d) External auditory meatus
The correct answer is: (b) Ossicles
- From the diagram above, which of the parts are correctly grouped? Inner ear, Middle ear, Outer ear
- Inner ear ———- Middle ear ———- Outer ear
- (a) I, IV ———- III ———- II
- (b) III ———- II, IV ———- I
- (c) I ———- II ———- III, IV
- (d) II ———-I, II ———- IV
The correct answer is: (d) II ———- I, II ———- IV
- From the diagram above, the middle ear is connected to the pharynx by the part labelled:
- (a) I
- (b) II
- (c) III
- (d) IV
The correct answer is: (c) III
- From the diagram above, which parts of P and Q fuse to complete the biological process?
- (a) III and I
- (b) IV and I
- (c) III and II
- (d) IV and II
The correct answer is: (a) III and I
- From the diagram above, which of the following statements about P and Q is correct?
- (a) Both cells are structures for asexual reproduction
- (b) Both cells normally belong to the same individual
- (c) Both cells are found in plants
- (d) The union of both cells gives rise to a new mammal
The correct answer is: (d) The union of both cells gives rise to a new mammal
- From the diagram above, if the number of chromosomes in the skin cells of mammals is 46, how many chromosomes would be found in P and Q respectively?
- (a) 23 and 23
- (b) 23 and 46
- (c) 46 and 23
- (d) 46 and 46
The correct answer is: (a) 23 and 23
- In which of the following structures is simple sugar produced?
- (a) Vacuole
- (b) Cytoplasm
- (c) Chloroplast
- (d) Cell wall
The correct answer is: (c) Chloroplast
- An evidence of the occurrence of photosynthesis in an experiment is the:
- (a) Release of carbon (IV) oxide
- (b) Release of oxygen
- (c) Formation of water molecules
- (d) Formation and release of fructose
The correct answer is: (b) Release of oxygen
- The major sources of vitamin A are:
- (a) Egg yolk, carrot and palm oil
- (b) Mango, pawpaw and eggs
- (c) Sorghum, soya bean and liver
- (d) Rice bran, green vegetables and milk
The correct answer is: (a) Egg yolk, carrot and palm oil
- From the diagram above, which of the illustrated food substances would form a reaction with protease J?
- (a) K
- (b) L
- (c) M
- (d) N
The correct answer is: (b) L
- From the diagram above, protease J would react with the particular illustrated substance because enzymes:
- (a) Are denatured at a high frequency
- (b) Are specific in their action
- (c) Remain unchanged after a reaction
- (d) Speed up the rate of chemical reaction
The correct answer is: (b) Are specific in their action
- From the diagram above, after a reaction between protease J and the food substance, the end-product would be:
- (a) Fatty acids
- (b) Glucose
- (c) Amino acids
- (d) Sucrose
The correct answer is: (c) Amino acids
- The process that is used to demonstrate the necessity of light in photosynthesis is:
- (a) Hydrolysis
- (b) Demineralisation
- (c) Dechlorophylisation
- (d) Destarching
The correct answer is: (d) Destarching
- From the graph above, which of the following results best shows a person who has developed immunity to a disease?
- (a) I
- (b) II
- (c) III
- (d) IV
The correct answer is: (d) IV
- In which of the following diseases would a person be advised to avoid starchy foods?
- (a) Diabetes mellitus
- (b) Beriberi
- (c) Diabetes insipidus
- (d) Osteoporosis
The correct answer is: (a) Diabetes mellitus
- The process that leads to an increase in the number of cells in an organism is known as:
- (a) Mitosis
- (b) Meiosis
- (c) Fertilization
- (d) Mutation
The correct answer is: (a) Mitosis
- Which of the following environmental factors does not directly affect photosynthesis?
- (a) Light intensity
- (b) Soil pH
- (c) Carbon dioxide concentration
- (d) Temperature
The correct answer is: (b) Soil pH
- The deficiency of which of the following mineral elements in plants causes chlorosis?
- (a) Calcium
- (b) Potassium
- (c) Nitrogen
- (d) Phosphorus
The correct answer is: (c) Nitrogen
- The structure that carries hereditary information in living organisms is the:
- (a) Ribosome
- (b) Lysosome
- (c) Chromosome
- (d) Nucleolus
The correct answer is: (c) Chromosome
- Which of the following statements is correct about enzymes?
- (a) They are used up in the reactions they catalyze
- (b) They increase the activation energy of biochemical reactions
- (c) They are specific in their actions
- (d) Their activities are not influenced by pH
The correct answer is: (c) They are specific in their actions
- The movement of water from the soil into the root hair cells of a plant is by:
- (a) Diffusion
- (b) Osmosis
- (c) Active transport
- (d) Transpiration
The correct answer is: (b) Osmosis
- The primary function of the root hairs is to:
- (a) Anchor the plant firmly to the soil
- (b) Absorb water and mineral salts
- (c) Transport manufactured food
- (d) Store food materials
The correct answer is: (b) Absorb water and mineral salts
- The tissue responsible for the transport of manufactured food in plants is the:
- (a) Xylem
- (b) Phloem
- (c) Cambium
- (d) Epidermis
The correct answer is: (b) Phloem
- The energy for cellular activities is provided by:
- (a) Mitochondria
- (b) Ribosomes
- (c) Nucleus
- (d) Chloroplast
The correct answer is: (a) Mitochondria
- Which of the following substances is required for the clotting of blood?
- (a) Insulin
- (b) Hemoglobin
- (c) Fibrinogen
- (d) Urea
The correct answer is: (c) Fibrinogen
- The respiratory organs in fish are the:
- (a) Lungs
- (b) Gills
- (c) Tracheae
- (d) Skin
The correct answer is: (b) Gills
- The association between algae and fungi in lichen is an example of:
- (a) Parasitism
- (b) Commensalism
- (c) Saprophytism
- (d) Mutualism
The correct answer is: (d) Mutualism
- Which of the following statements about reproduction is not correct?
- (a) Fertilization is the fusion of male and female gametes
- (b) Asexual reproduction involves one parent
- (c) Sexual reproduction results in genetic variation
- (d) Vegetative propagation is a form of sexual reproduction
The correct answer is: (d) Vegetative propagation is a form of sexual reproduction
- The process by which green plants manufacture their food is called:
- (a) Respiration
- (b) Transpiration
- (c) Photosynthesis
- (d) Germination
The correct answer is: (c) Photosynthesis
- The breakdown of glucose to release energy in cells is known as:
- (a) Hydrolysis
- (b) Glycolysis
- (c) Proteolysis
- (d) Lipolysis
The correct answer is: (b) Glycolysis
- Which of the following is not a characteristic of living things?
- (a) Reproduction
- (b) Growth
- (c) Movement
- (d) Decay
The correct answer is: (d) Decay
- The primary function of the large intestine in humans is to:
- (a) Absorb digested food
- (b) Absorb water and salts
- (c) Secrete digestive enzymes
- (d) Produce bile
The correct answer is: (b) Absorb water and salts
- Which of the following organisms can live both on land and in water?
- (a) Fishes
- (b) Amphibians
- (c) Reptiles
- (d) Mammals
The correct answer is: (b) Amphibians
- The process by which a tadpole develops into a frog is known as:
- (a) Metamorphosis
- (b) Mutation
- (c) Fertilization
- (d) Evolution
The correct answer is: (a) Metamorphosis
- Which of the following is not involved in protein synthesis?
- (a) DNA
- (b) mRNA
- (c) tRNA
- (d) Lysosome
The correct answer is: (d) Lysosome
Frequently Asked Questions
What is the best way to handle multiple-choice questions in Biology?
Read each question carefully, eliminate incorrect options, and choose the best answer.
How should I approach essay questions in Biology?
Organize your answers with clear headings, use diagrams where appropriate, and provide detailed explanations.
What resources are helpful for studying WAEC Biology?
Use textbooks, past questions, study guides, and online resources for comprehensive preparation.
Conclusion
Thorough preparation using past questions, understanding key topics, and practicing both theoretical and practical aspects of Biology will ensure success in the WAEC Biology exam.
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