Biology Practical WAEC 2026 Possible Exam Questions

 

In today’s class, we are going to look at some areas of concentration for the  coming Biology Practical Exam. I will like to list all the specimens for this exam so you can truly understand what we are about to learn and by the end of this class you will never have problems with biology. The specimens include:

1. Specimen A - Groundnut pods (containing seeds)

2. Specimen B - Crushed/milled roasted groundnut seeds

3. Specimen C - Beaker with 20 ml of water

4.  Specimen D - Beaker with 20 ml of table salt solution

5. Specimen E - Beaker filled with sandy soil

6. Specimen F - Portion of alimentary

7. Specimen G - Twig/branch of a plants with mistletoe/colour picture of a parasitic  plant on its host      plant

8. Specimen H - Evaporated milk( poured into a beaker and labelled milk)

9. Specimen J - Fresh fish

10. Specimen K - Dry maize grain

11. Specimen L - Tomato paste

12. Specimen M - Fresh tomato fruit (firm)

13. Specimen N - Rotten tomato

14. Specimen P - Thermometer

15. Specimen Q - Metre rule

16. Specimen R - Quadrat

 Specimen A = Groundnut Pods ( containing  seeds)

It is an example of legumes. It is  a dicotyledonous plant, the type of germination which it undergoes is epigeal germination.

 In this kind of germination, the cotyledons or seed leave are carried above the  surface of the earth. It has tap root system and net vein. The root  can fix nitrogen which the aid of the some certain bacteria in the soil.

Specimen B = Crusted or milled roasted groundnut seeds6

This is going to be used to carry out a test for oil

Test	Obervation	Result
Place B on a filter paper and allow it to stay for about 5 minutes	The paper becomes translucent	Oil present

  Specimen C = Beaker with 20 ml of water

It is very important medium of transportation in plants and animal. Without specimen C, digestion of food will be  a big problem.

 Specimen D = beaker with 20 ml of table salt solution

This specimen is likely for question under osmosis

 Specimen E = beaker filled with sandy soil

Characteristic of sandy soil,

It has low water holding capacity

Low in mineral

It is porous and coarse

It has large particles

 Specimen  F = portion of alimentary canal of a small mammal

The oesophagus connects the mouth to the stomach. The stomach serves as the temporary storage for food in the alimentary canal and two enzymes present in the stomach are  renin and pepsin both help in the digesting protein, renin acts on protein in  milk while the pepsin as on protein. The acidic medium of the stomach aids the actives of the two enzymes.

 Specimen G =  Twig / branch of a plant with mistletoe

Parasitic plants have sucker which they use in absorption of food from their host.

 Specimen H = Evaporated milk

This will be used to test for protein

 

Test	Observation	Result
Pour Specimen H into a beaker, add copper(II) sulphate solution  then add sodiun hydroxde solution	Purple colour formed	Protein present

  

Specimen J =  fish

Fish belong to the phylum Chordata and the class is Pisces. They are aquatic animals. In fish , they have two paired fins which are pectoral fin and pelvic fin. The unpaired fin in fish are anal fin, dorsal fin and caudal fin. Note all the parts of the fish and their function. Drawing of fish may also be required in the exam hall.

 Specimen K = Dry maize grain

Maize is a monocotyledonous plant, it has parallel veins and the type of germination is hypogeal germination, this type of germination the seed leaves are not carried to the surface of the soil. Expect the compare and contracts of the specimen A and K. there will test for starch too.

 

Test	Observation	Result
Crush  K on a white tile then add few drops of iodine solution	Blue- black colour form	Starch present

 Specimen L = Tomato paste

 Test for reducing sugar is likely to be part of the questions because Benedict’s solution is required for the examination and tomato paste is good for such test.

 

Test	Observation	Result
Put L into the beaker then add about 10ml of specimen B, and add Benedict’s solution , heat gently	Orange precipitate form	Reducing sugar present

 

Specimen M = Fresh tomato

Tomato is a berry, it is a true fruit and it has three fleshy layers which are the epicarp, mesocarp and endocarp. The placentation of tomato is axile, this type of placentation the ovules are arranged at the central axis. Draw and label transverse section of tomato fruit.

 

Specimen N = Rotten tomato fruit

This is likely to be used to demonstration of osmosis

 Specimen P = thermometer

It is used in checking temperature

 Specimen Q = Metre rule

 It is used in measuring area of habitats

 Specimen R = quadrat

This is used to calculate the population of organisms in a habitat