Here is a complete guide on free WAEC Biology Questions and Answers to help you succeed. People may wish to have access to WAEC expo/runs in Biology, but I tell you, the details on Objectives and theory Biology WAEC Questions and Answers provided for you here is the best.
The West African Examination Council (WAEC) Biology paper 1 and 11 (Objectives and Essay) schedule is available in the official Timetable. All the necessary materials will be provided by the management board for the smooth running of the exams. To pass Biology with A1, keep reading fore latest news on correct WAEC Biology answers with PDF Download.
WASSCE Biology past Questions papers has been provided here to help you get ready for the questions that will be presented to you. Likely Biology expo questions and Answers and how to answer the questions without wasting time are equally provided.
Biology Answers to Objectives Questions
There are free WAEC Biology Past Questions and Answers for you. Take your time and make good use of it while waiting for the latest update on Likely WAEC Biology expo.
The following are Sample WAEC Biology Objectives Past Questions and Answers:
1.Fishes survive in water mainly because they possess
- A. streamlined body
- B. scales
- C. paired fins
- D. gills
Answer: D (gills)
2. The androecium in a flowering plant is a collection of
- A. stamens
- B. sperms
- C. ovules
- D. filament
Answer: A (stamens)
3. The eye defect caused by an uneven curvature of the cornea or lens or both is
- A. myopia
- B. presbyopia
- C. astigmatism
- D. hypermetropia
Answer: C (astigmatism)
4. Placentation in fruits is referred to as the
- A. arrangement of ovules in the ovary of a flower
- B. formation of a single carpel joined at the two edges of an ovule
- C. ovules borne on a central column of tissues in an ovary
- D. part of the ovary where the ovules originate and remain till maturity
Answer: A (arrangement of ovules in the ovary of a flower)
5. An example of a process that involves osmosis is the
- A. movement of water from root hairs into cortical cell
- B. movement of digested food from ileum into blood capillaries
- C. translocation of starch from leaves to all parts of a plant
- D. reabsorption of food nutrients from the kidney into blood capillaries
Answer: A (movement of water from root hairs into cortical cell)
6. The rate of decomposition of dead organisms is faster in the tropical rainforest than in other biomes because
- A. of consistent cool temperature
- B. there are more plants
- C. of the relatively constant day light.
- D. of availability of moisture
Answer: D (of availability of moisture)
7. A Rhesus negative woman may experience stillbirth of the second child that is Rhesus positive because
- A. the foetus is deprived of nourishment
- B. they have poor circulatory system
- C. the blood of the foetus might clump
- D. the woman is susceptible to diseases during pregnancy
Answer: C (the blood of the foetus might clump)
8. Which type of breeding is represented by industrial melanism in peppered moths?
- A. Inbreeding
- B. Natural selection
- C. Artificial selection
- D. Outbreeding
Answer: (Natural selection)
9. The male and female gametes which bear genes for inheritance in plants are located in the
- A. stamens and petals
- B. sepals and petals
- C. stamens and pistils
- D. anthers and petals
Answer: C (stamens and pistils)
10. The physical appearance of an organism is described as its
- A. phenotype
- B. chromosome
- C. allele
- D. genotype
Answer: A (phenotype)
11. A woman with blood group A gives birth to a child with blood group O. Which of the following blood groups cannot belong to the father?
- A. B
- B. O
- C. AB
- D. A
Answer: C (AB)
12. Which of the following traits is not inheritable? Ability to
- A. move the ear
- B. roll the tongue
- C. taste P.T.C
- D. roll the eyeball
Answer: D (roll the eyeball)
13.Which type of breeding is represented by industrial melanism in peppered moths?
- A. Artificial selection
- B. Natural selection
- C. Inbreeding
- D. Outbreeding
Answer: C (Inbreeding)
14.The male and female gametes which bear genes for inheritance in plants are located in the
- A. anthers and petals
- B. sepals and petals
- C. stamens and pistils
- D. stamens and petals
Answer: B (sepals and petals)
15.Mutation leads to evolution because it
- A. kills all organisms where it has occurred.
- B. gives rise to offspring having same characteristics as the parents
- C. does not confer adaptability to the offspring
- D. gives rise to new individuals that differ from their parents
Answer: D (gives rise to new individuals that differ from their parents)
16.The physical appearance of an organism is described as its
- A. phenotype
- B. genotype
- C. allele
- D. chromosome
Answer: A (phenotype)
17.
Which of the following statements is correct about the cross?
- A. Both parents are heterozygous
- B. The male is not heterozygous
- C. The female is homozygous
- D. Both parents are homozygous
Answer: C (The female is homozygous)
18.A woman with blood group A gives birth to a child with blood group O. Which of the following blood groups cannot belong to the father?
- A. B
- B. A
- C. AB
- D. O
Answer: C (AB)
19.Which of the following statements is correct about the ABO blood group system?
- A. Antigens are located on the surface of white blood cells
- B. Antibodies are located in the blood plasma
- C. Antibodies are located on the surface of the red blood cells
- D. Antigens are located in the blood plasma
Answer: B (Antibodies are located in the blood plasma)
20.Which of the following traits is not inheritable? Ability to
- A. taste P.T.C
- B. roll the tongue
- C. move the ear
- D. roll the eyeball
Answer: D (roll the eyeball)
21.An individual found a strange bird that is tagged as an endangered specie. What should the individual do?
- A. Kill it
- B. Take it to an aquatic environment
- C. Return it to its natural habitat
- D. Sell it at a very high price
Answer: C ( Return it to its natural habitat)
22.
The two sources of energy that would mostly lead to pollution in the community are
- A. solar and kerosene
- B. coal and wind
- C. kerosene and coal
- D. solar and wind
Answer: C (kerosene and coal)
23.The phenomenon by which a farmland that is left to fallow for several years develops into a forest is called
- A. Succession
- B. afforestation
- C. population
- D. colonization
Answer: A (Succession)
24.An environmental problem caused by Sulphur (IV) oxide is
- A. acid rain
- B. deforestation
- C. global warming
- D. Erosion
Answer: A (acid rain)
25.Which of the following gases is released during the decomposition of organic matter?
- A. Carbon(II) oxide
- B. Sulphur (IV) oxide
- C. Hydrogen Sulphide
- D. Nitrous oxide
Answer: C (Hydrogen Sulphide)
26.Grasses → Grasshoppers → Lizards → Hawks
If the individual species of organisms in the food chain are counted and arranged as a pyramid, the result would be a pyramid of
- A. numbers
- B. energy
- C. biomass
- D. biomes
Answer: A (numbers)
27.The illustration below is a food chain. Study it and answer questions 29 and 30.
Grasses → Grasshoppers → Lizards → Hawks
Which of the following statements is not correct about the food chain? The number of
- A. grasses eaten by grasshoppers is greater than the number of grasshoppers.
- B. grasses eaten by grasshoppers is fewer than the number of grasshoppers.
- C. grasshoppers eaten by lizards is greater than the number of lizards.
- D. lizards eaten by hawks is greater than the number of hawks.
Answer: B (grasses eaten by grasshoppers is fewer than the number of grasshoppers.)
28.The pathway through which nutrient are replenished and circulated in an ecosystem is called a
- A. cycle
- B. pyramid of energy
- C. pyramid of numbers
- D. Food chain
Answer: A (cycle)
29.Discouraging the use of poison to kill fish in a large water body is a way of
- A. impoverishing the people.
- B. conserving the fish species.
- C. allowing the fittest organism to survive
- D. making the fish adapt to their environment
Answer: B (conserving the fish species.)
30.Sunlight is the major source of
- A. Vitamin D
- B. vitamin C
- C. vitamin B
- D. vitamin A
Answer: A (Vitamin D)
31.Which of the following food substances would give a negative reaction with Benedict’s reagent?
- A. Fructose
- B. Glucose
- C. Galactose
- D. Sucrose
Answer: D (Sucrose)
32.The process of food digestion in mammals would
- A. make energy immediately available to the body
- B. promote growth and repair of tissues
- C. provide sufficient food materials within the body
- D. render food substances soluble and absorbable
Answer: D (render food substances soluble and absorbable)
33.The element required for chlorophyll formation in plants is
- A. Iron
- B. Calcium
- C. Phosphorus
- D. Sulphur
Answer: A (Iron)
34.The rate of photosynthesis decreases in a wilted herbaceous plant because the
- A. enzymes in the leaf were denatured
- B. chlorophyll in the leaves was not broken down
- C. amount of light reaching the plant was reduced
- D. amount of carbon dioxide entering the leaf decrease.
Answer: D (amount of carbon dioxide entering the leaf decrease.)
35.Which of the following events does not occur in the light reaction stage of photosynthesis?
- A. Chlorophyll absorbs sunlight
- B. Carbon (IV) oxide combines with hydrogen
- C. Photolysis of water occurs
- D. Hydroxyl ions are produced
Answer: B (Carbon (IV) oxide combines with hydrogen)
36.The Parachute-like tuft of hairs developed from the
- A. pedicel
- B. petals
- C. receptacle
- D. sepals
Answer: D (sepals)
37.The condition necessary for reproduction to occur between plants P and Q after pollination is that plants P and Q should be
- A. of the same species.
- B. brightly coloured.
- C. well scented
- D. of different species.
Answer: A (of the same species.)
38.
The diagram above is an illustration of two plants P and Q. Arrows I, II and III illustrate the transfer of pollen grains among flowers of plants P and Q. Studly it and answer questions 17 and 18.
The types of pollination illustrated as I,Il and III, respectively are
- A. cross, self and cross
- B. self, self and cross
- C. self, cross and self
- D. self, cross and cross
Answer: B (self, self and cross)
39.
The part labelled III is the
- A. iris.
- B. pupil
- C. sclera
- D. cornea
Answer: B (pupil)
40.The structures that contain grey matter and white matter are found in the
- A. reproductive system.
- B. nervous system.
- C. respiratory system.
- D. digestive system.
Answer: C (respiratory system.)
41.Filtrates in the Bowman’s capsule contain vitamins because
- A. they have low molecular weight.
- B. most of them are fat soluble.
- C. they cannot be reabsorbed into the blood.
- D. little amount is required by the blood.
Answer: A (they have low molecular weight.)
42.The bursting of a red blood cell placed in a hypotonic solution is called
- A. crenation
- B. haemolysis
- C. plasmolysis
- D. cytolysis
Answer: B (haemolysis)
43.The function of the root hair in plants is to
- A. absorb soil water by the process of osmosis.
- B. excrete water and mineral salts by simple diffusion.
- C. purify the soil for the plant.
- D. translocate manufactured food.
Answer: A (absorb soil water by the process of osmosis.)
44.If a germinating seed is attached horizontally to a revolving klinostat, what would be the effect on the seedling after three days? The
- A. plumule will curve vertically upward while the radicle will not show any curvature
- B. radicle will curve towards the ground while the plumule will not show any curvature.
- C. plumule and radicle will not show any curvature.
- D. plumule will curve vertically upwards while the radicle will curve towards the ground
Answer: C (plumule and radicle will not show any curvature.)
45.The lumbar vertebra differs from the thoracic vertebra because it possesses a
- A. longer neural spine.
- B. wider neural canal.
- C. thicker centrum.
- D. shorter transverse process.
Answer: C (thicker centrum.)
46.Which of the following blood vessels carries oxygenated blood into the heart?
- A. Pulmonary artery
- B. Anterior vena cava
- C. Pulmonary vein
- D. Posterior vena cava
Answer: C (Pulmonary vein)
WAEC Essay Biology Questions
Past Biology Questions:
SECTION A
An individual ate a hot and large meal of cassava with salty groundnut soup. The individual was sweating profusely and did not drink water after the meal.
(a) State one role each played by the following organs involved in the activity above:
(i) mouth; (ii) skin; (iii) tongue; (iv) kidney; (v) stomach; (vi) small intestine; (vii) large intestine; (viii) liver.
(b) Name three of the organs listed in 2(a) that contain enzymes needed to breakdown the food.
(c) Name three digestive enzymes that would be involved in the digestion of the meal.
(d) Name two end products of the meal after digestion.
(e)(i) State one effect that the excess salt in the meal might have on the individual.
(ii) State three advantages that the individual would derive from the meal.
Answers:
a)Roles played by the organs involved:
(i) Mouth: contains saliva that moistens or softens the food.
(ii)Skin excretes excess salt and eliminates excretory waste from the body.
(iii)Tongue tastes the food and rolls the food into bolus.
(iv)Kidney excretes excess water and salt or carries out osmoregulation.
(v)Stomach temporarily stores the food/churning of the ingested food.
(vi)Small intestine absorbs and digests the food as the enzyme maltase converts maltose into glucose while lipase converts fats and oil to fatty acids and glycerol.
(vii)Large intestine moves waste to the rectum as faeces to be egested out of the body through the anus.
(viii)Liver converts excess glucose to glycogen for storage/ deaminates excess amino acids.
(b) Three Organs that would contain enzymes needed to break down food include:
– Mouth
– Stomach
– Small intestine
(c)Three digestive enzymes that would be involved in the digestion of the meal.
– salivary amylase/ptyalin
– pancreatic amylase
– Lipase
(d)Two end products of the meal after digestion.
– amino acids
– glucose
– fatty acids and glycerol
(e)(i)one effect that the excess salt in the meal might have on the individual.
– headache
– stroke
– dehydration
– heart failure
– high blood pressure
– enlarges heart muscles
– kidney disease
(ii)Three advantages that the individual would derive from the meal.
– The immune system will be strengthened.
– Digestion will be improved.
– Energy rate will be increased.
– Immune system wil be strengthened.
– Cardiovascular disease would be prevented.
Q2.
(a)State one function each of the following parts of the nephron:
(i) glomerulus (ii)Bowman’s capsule (iii)proximal convoluted tubule (iv) distal convoluted tubule
(b) Complete the table below.
| Organism | Structure for excretion | Form in which waste is excreted by organism |
| contractile vacuole | ||
| Flatworm | ||
| Earthworm | ||
| Cockroach | ||
| Human | Liquid | |
| Stomata pore |
(c) List five excretory products of plants.
Answers:
Functions of the parts of the nephron
(a)(i)Glomerulus carries out ultrafiltration or it filters the blood passing through it.
(ii)Bowman’s capsule receives blood plasma from the glomerulus and filters it to initiate urine formation.
(iii)Proximal convoluted tubule is responsible for reabsorbing most of the glucose, amino acids, and small peptides that enter the ultrafiltrate back into the bloodstream.
(iv)Distal convoluted tubule regulates electrolytes and water balance, and helps maintain pH.
(b)
| Organism | Structure for excretion | Form in which waste is excreted by organism |
| Amoeba/Paramecium | contractile vacuole | Gaseous/Liquid |
| Flatworm | Flame cell | Liquid |
| Earthworm | Nephridium | Liquid |
| Cockroach | Malpighian tubule | Solid |
| Human | Skin/kidney/lung | Liquid |
| Plants(Green) | Stomata pore | Gaseous |
(c) Excretory products of plants include the following:
Carbon dioxide, water vapor, oxygen, resins, gum, tannins, alkaloids, oils, and nitrogenous compounds
How to pass WAEC exams
It’s important to make your West African Senior Secondary School Certificate Examination a huge success. The following ways are beneficial to candidates that wish to pass WAEC with flying colors:
1. Make adequate Preparation: By preparing very well for the WAEC Biology Objectives and theory exams, candidates will be able to write the exams confidently.
2. Attending Extra moral Classes: The school teachers might not be able to complete the curriculum on time. On that note, it is advisable for students to attend tutorials that will enlightened the more on the right topics under The syllables.
3. Make good use of Past Questions: The West African Examination Council, WAEC has a pattern of setting questions. Students that make good use of the WAEC Biology past Questions and Answers will surely perform well in the exams. Try and practice the questions set on previous years.
4. Use WAEC Biology Syllabus: The WAEC Biology Syllabus has a list of topics to be treated for years. Candidates should ensures that they use the syllabus while studying and preparing for their exams.
Steps to Answer Questions
The following steps are crucial while trying to answer WAEC Biology questions:
- Candidates are advised to always begin with the simplest questions.
- Adherence to the WAEC exams instructions are very important.
- All the required details should be carefully written or entered on the WAEC Answer booklet.
- Candidate’s handwriting should be very readable.
- It’s important to attempt the required number of questions.
- Candidates should cross check their answers before final submission.
Conclusion
Passing the WAEC Biology exams is very easy. All that is required is to do the needful. Prepare on time, attend tutorials, use past Questions and syllabus and many more.
Those that want to know more about the WAEC Biology questions and Answers should use the comments box hereunder.
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