You’re welcome to our school exams series where we provide you with termly examination questions in different subjects. In today’s post, we will focus on Biology exam questions. We will cover Biology exam questions for SS2 Second term with answers. This means that we’ll be providing you with answers to the questions at the end. Also, you will get a few success tips on how to pass Biology examinations with flying colors. Remember to use the comments sections if you have questions, and don’t forget to join our Free Online Tutorial Classes on YouTube. (Subscribe to the Channel)

Table of Contents
Introduction to Biology as a School Subject
Before we venture into Past Biology Exam Questions for SS2 Second term, here’s a brief introduction to the subject:
Biology, as a school subject, is the study of life and living things. It focuses on plants, animals, humans, and microorganisms. Through Biology, students learn how life processes work, how living organisms interact with their environment, and the role they play in maintaining balance in nature. It is a subject that connects directly to everyday life, making it both interesting and practical for students.
Biology Exam Questions for SS2 Second Term
Biology Exam Questions for SS2 Second Term are divided into two sections:
- Section A
- Section B
The first section, namely, Section A is the objective test, and students are expected to attempt all questions in the section. Section B is the theory part, and students are expected to answer only three (3) out of six (6) questions.
Note that what you have below are SS2 Biology Second Term Exam Past Questions made available to assist students in their revision for 2nd term examinations and also teachers in structuring standard examinations.
SECTION A: OBJECTIVE TEST
Instruction: Answer all questions in this section by choosing from the options lettered A—D. Each question carries equal marks.
1. Which of these is not a vitamin?
(A) Vitamin AÂ Â Â Â Â (B) Vitamin B
(C) Vitamin CÂ Â Â Â Â (D) Vitamin D
(E) Vitamin EÂ Â Â Â Â (F) Vitamin F
(G) Vitamin K
2. Which is a source of vitamins?
(A) Yams
(B) Fishes
(C) beans
(D) oil bean seeds
3. Lack of Vitamin A causes
(A) Scurvy
(B) Night blindness
(C) Rickets
(D) Beriberi
4. BERIBERI is a disease of
(A) Vitamin B1
(B) Vitamin B2
(C) Vitamin B3
(D) Vitamin C
5. Another name for Vitamin C is
(A) Ascorbic acid
(B) Pantheaminic acid
(C) Vitamin C
(D) Thiamin
6. What is the number of permanent dentitions in the mouth of man?
(A) 18Â Â Â Â Â Â (B) 22
(C) 30Â Â Â Â Â Â (D) 34
7. What is the shape of Incisor tooth?
(A) Conical in shape
(B) chisel-like in shape
(C) flat broad shape
(D) Broad large flat in shape
8. How many roots have molar tooth?
(A) 1Â Â Â Â Â Â (B) 2
(C) 3Â Â Â Â Â Â (D) 4
9. The shape of canine tooth is
(A) Pointed long and conical in shape
(B) Chisel like in shape
(C) Flat surface with cups
(D) Broad large flat surface
10. Animals with dental formula I = 2/2, C = 1/1, PM = 2/2 and M = 3/3 will be
(A) Herbivorous     (B) Carnivorous
(C) Omnivorous     (D) Holophytic
11. Name the parts labelled 11 to 23

24. Which of these is the best proper way of caring for the teeth?
(A) Proper washing with adequate toothpaste and brush
(B) Eating balance diet
(C) Consult a dentist
(D) Using Saline solution
25. Name best environment in which cells are found
(A) fresh water
(B) salt water
(C) Intercellular fluid
(D) Intracellular fluid
26. In Diffusion, materials move from ______________
(A) Lower concentration to higher concentration
(B) from higher concentration to lower concentration
(C) Between the two solutions
(D) All of the above solution
27. In experiment to demonstrate diffusion, what happens immediately after dropping potassium permanganate?
(A) crystals move from bottom of the water to the top
(B) water moves from top of the water to bottom of the water
(C) there is no movement of water
(D) semi-permeable membrane is found between the fluid
28. In Osmosis water molecules move from ______________
(A) higher concentration to lower concentration
(B) from lower concentration to higher concentration
(C) in between higher to lower concentration
(D) none of the above solution
29. Major difference between osmosis and diffusion is that ______________
(A) water moves from lower concentration to higher concentration,
(B) water moves from higher concentration to lower concentration
(C) the water is of isotonic solution
(D) the water is of hypertonic solution
30. What happens when a plant cell is placed in hypertonic solution?
(A) Water will move into hypertonic solution
(B) There will be decrease in volume of hypertonic solution
(C) There will be no movement between the two solutions
(D) The two solutions are hypertonic solution
31. Name the parts labelled 31 to 40

41. What happens when a plant cell is placed water solution?
(A) The plant cell will absorb water
(B) The plant cell will reduce in volume
(C) There will be no movement between the water and cell
(D) There will be no net movement of water
42. Which of these is an importance of transport across the plasma membrane?
(A) To supply/obtain energy
(B) Not to supply nutrient
(C) Not to supply raw materials
(D) Not to remove waste materials
43. Which of these is not a type of supporting tissues in plants?
(A) Turgid parenchyma
(B) Collenchyma
(C) Sclerenchyma
(D) phloem tissues
44. What is the shape of Collenchyma cells?
(A) Spherical
(B) Polygonal
(C) Prismatic
(D) all of the above shapes
45. Collenchyma is found ____________
(A) Within the epidermis of the cell
(B) below the epidermis of the cells
(C) Behind the Epidermis
(e) Within the Endodermis
46. Which of these is not a function of the Stems?
(A) Spread the flowers for wind dispersal
(B) Does not make the plants to remain rigid
(C) Makes the plants to be rigid and upright
(D) Collenchyma does not rigid strengthening outer cylinders
47. Which of these is not an internal tissue in plants?
(A) Epidermis      (B) Cortex
(C) Endodermis    (D) Cell sap
48. What is the colour of piliferous layer?
(A) white     (B) Brown
(C) Yellow    (D) Red
49. Major function tiny root hairs is to
(A) absorb soil water
(B) Hold the roots in the soil
(C) remove soil water
(D) absorb soil air
50. Major function of cortex is
(A) storage of food substances
(B) Enclose endodermis
(C) Exchange vascular bundles
(D) Isolate strengthening effect
51. Major function of xylem tissues is
(A) Conduct water and mineral salt from root up to leaves
(B) Conduct manufactured food to certain height of the stem
(C) Do not transport mineral salt
(D) Transport manufactured food
52. Which part of plant can easily divide leading to secondary growth?
(A) Xylem tissue
(B) Phloem tissues
(C) Cambium tissues
(D) None of the above
53. Diagram below is a typical Cervical Vertebra. Use it to name the parts labelled 53 to 57.

58. The Thoracic Vertebra is bone of the
(A) Head
(B) Thoracic cavity
(C) Lumbar vertebrae
(D) Sacral Vertebra
59. Which of the following is the characteristic of Thoracic Vertebra?
(A) Short neural spine
(B) Long curved neural spine
(C) Narrow neural spine
(D) Very short neural spine
(E) None of the above
60. How many vertebrae are found in human Thoracic Vertebra?
(A) 15Â Â Â Â Â Â Â (B) 13
(C) 12Â Â Â Â Â Â Â (D) 10
SECTION B — THE THEORY
INSTRUCTION: Answer any three (3) questions
1. (A) Define diffusion.
(B) Describe an experiment to demonstrate osmosis using yam tubers.
2. (A) State three (3) differences between osmosis and diffusion.
(B) Describe the term Turgidity with aid of a diagram.
3. (A) Mention three types of supporting tissues in plants.
(B) Draw a large diagram showing features of supporting tissues in plants.
4. (A) Draw a large diagram of Transverse section monocotyledonous root.
(B) Name five structures in the diagram above.
5. (A) Name three (3) supporting tissues in animals.
(B) Draw a large fully labelled diagram of transverse section of thoracic vertebra.
6. (A) Draw a large fully labelled diagram of Lumbar vertebra.
(B) State three differences and two similarities of thoracic and Lumbar vertebrae.
Remember to use the comments sections if you have questions, and don’t forget to join our Free Online Tutorial Classes on YouTube. (Subscribe to the Channel)
Answers to Biology Exam Questions for SS2 Second Term
Answers to Section A (Objective Test)
The following table gives the correct answers to the objective section of Biology exam questions for SS2 Second term. If you are using a mobile device, hold the table and scroll to the right or left for a complete view.
| Q.No | Ans | Q.No | Ans | Q.No | Ans |
|---|---|---|---|---|---|
| 1 | F | 21 | Crown | 41 | A |
| 2 | B | 22 | Neck | 42 | A |
| 3 | B | 23 | Root | 43 | D |
| 4 | A | 24 | A | 44 | D |
| 5 | A | 25 | C | 45 | B |
| 6 | C | 26 | B | 46 | B |
| 7 | B | 27 | A | 47 | D |
| 8 | C | 28 | B | 48 | A |
| 9 | A | 29 | A | 49 | A |
| 10 | C | 30 | A | 50 | A |
| 11 | Enamel | 31 | Retort stand | 51 | A |
| 12 | Dentine | 32 | Glass tube | 52 | C |
| 13 | Gum | 33 | Cork | 53 | Neural spine |
| 14 | Pulp cavity | 34 | Liquid level | 54 | Neural arch |
| 15 | Blood capillaries | 35 | Beaker | 55 | Neural canal |
| 16 | Nerve fiber | 36 | Thistle funnel | 56 | Vertebrarterial canal |
| 17 | Cementum | 37 | Sugar solution | 57 | Centrum |
| 18 | Periodontal ligament | 38 | Semi-permeable membrane | 58 | B |
| 19 | Jaw bone | 39 | Distilled water | 59 | B |
| 20 | Root | 40 | Control setup | 60 | C |
There you have the answers to the objective section of Biology Exam Questions for SS2 second term. Use the comments section to let me know if you have any questions you would want me to clarify or discuss further.
Answers to Section B (Theory)
1.
(A) Define diffusion.
Diffusion is the net movement of particles (molecules or ions) from a region of higher concentration to a region of lower concentration until the particles are evenly distributed throughout the available space. It is a passive process that does not require energy.
(B) Describe an experiment to demonstrate osmosis using yam tubers.
Aim: To demonstrate osmosis using yam tuber tissue.
Materials: Fresh yam tuber, cork borer, ruler, electronic balance, scalpel, two beakers, distilled water, concentrated salt (or sugar) solution, filter paper.
Procedure:
- Using the cork borer, cut two identical cylindrical pieces of yam tuber of the same length and diameter.
- Measure and record the initial length and mass of each cylinder.
- Place one cylinder in a beaker containing distilled water (hypotonic solution).
- Place the second cylinder in a beaker containing concentrated salt solution (hypertonic solution).
- Leave both beakers for 45–60 minutes at room temperature.
- Remove the cylinders, blot them dry with filter paper, and measure their final length and mass.
Observation: The cylinder in distilled water increases in length and mass (endosmosis). The cylinder in concentrated salt solution decreases in length and mass (exosmosis).
Conclusion: Water molecules moved across the semi-permeable membranes of the yam cells by osmosis from a region of higher water concentration to a region of lower water concentration.
2.
(A) State three (3) differences between osmosis and diffusion.
| Feature | Osmosis | Diffusion |
|---|---|---|
| 1. Type of particles moved | Involves only solvent (water) molecules | Involves any molecules or ions |
| 2. Requirement of membrane | Requires a semi-permeable membrane | Does not require a membrane |
| 3. Medium of occurrence | Occurs only in liquids | Occurs in solids, liquids and gases |
(B) Describe the term Turgidity with aid of a diagram.
Turgidity is the state in which a plant cell becomes firm, rigid and swollen due to the absorption of water by osmosis. The vacuole fills up, the cytoplasm is pressed firmly against the cell wall, and the cell exerts turgor pressure on the wall. This gives mechanical support to non-woody (herbaceous) plants.
LARGE DIAGRAM OF TURGID PLANT CELL (Turgidity)
Nucleus
Cell wall
Cytoplasm
Vacuole (full of cell sap)
Turgid cell (firm & rigid)
Turgor pressure pushes cytoplasm against cell wall
Diagram shows a fully turgid plant cell with large central vacuole pressing cytoplasm against the cell wall.
3.
(A) Mention three types of supporting tissues in plants.
- Collenchyma tissue
- Sclerenchyma tissue
- Xylem tissue
(B) Draw a large diagram showing features of supporting tissues in plants.
LARGE COMPOSITE DIAGRAM OF SUPPORTING TISSUES IN PLANTS
Collenchyma
Living cells
Thickened corners
Sclerenchyma fibre
Dead, lignified, thick wall
Xylem vessel
Lignified wall, empty lumen
1. Collenchyma — provides flexible support
2. Sclerenchyma — provides rigid support
3. Xylem — provides mechanical support + conducts water
Diagram shows transverse and longitudinal views of collenchyma, sclerenchyma fibres and xylem vessels.
4.
(A) Draw a large diagram of Transverse section monocotyledonous root.
LARGE DIAGRAM — TS OF MONOCOTYLEDONOUS ROOT
Epidermis
Cortex (parenchyma)
Endodermis (Casparian strip)
Pericycle
Xylem (polyarch)
Phloem
Pith
Typical monocot root TS showing polyarch xylem arrangement.
(B) Name five structures in the diagram above.
- Epidermis
- Cortex
- Endodermis
- Pericycle
- Xylem vessels (polyarch arrangement)
5.
(A) Name three (3) supporting tissues in animals.
- Bone tissue
- Cartilage tissue
- Ligament (dense fibrous connective tissue)
(B) Draw a large fully labelled diagram of transverse section of thoracic vertebra.
LARGE FULLY LABELLED DIAGRAM — TS OF THORACIC VERTEBRA
Costal facet (for rib)
Costal facet (for rib)
Body (Centrum)
Spinous process
Transverse process
Vertebral foramen (neural canal)
Pedicle
Lamina
6.
(A) Draw a large fully labelled diagram of Lumbar vertebra.
LARGE FULLY LABELLED DIAGRAM — LUMBAR VERTEBRA (Superior view)
Large body (Centrum)
Short thick spinous process
Transverse process
Triangular vertebral foramen
Pedicle
(B) State three differences and two similarities of thoracic and Lumbar vertebrae.
Three Differences:
- Thoracic vertebra has costal facets on the body and transverse processes for rib articulation; lumbar vertebra has no costal facets.
- Thoracic vertebra has a long, slender, downward-sloping spinous process; lumbar vertebra has a short, thick, hatchet-shaped spinous process.
- The body of thoracic vertebra is smaller; the body of lumbar vertebra is larger and kidney-shaped to support greater body weight.
Two Similarities:
- Both have the same basic parts: body (centrum), neural arch, spinous process, transverse processes, pedicles and laminae.
- Both possess a vertebral foramen through which the spinal cord passes.
How to Pass Biology Exam Questions for SS2 Second Term
Here are some simple but powerful tips to help you pass your Biology exam questions for SS2 second term:
1. Understand, Don’t Cram
Biology is full of concepts. Topics like diffusion, osmosis, transport system, and plant tissues must be understood clearly. When you understand a topic, you can answer any question, even if it is twisted.
2. Study with Diagrams
Diagrams carry a lot of marks. Practice drawing and labeling diagrams like:
– Root structure
– Vertebrae (cervical, thoracic, lumbar)
– Plant tissues
Make your drawings neat, large, and well-labelled. Examiners reward clarity.
3. Master Key Topics
Focus more on topics that are always tested:
– Nutrition and vitamins
– Dentition in mammals
– Diffusion and osmosis
– Plant and animal tissues
– Transport across membranes
When these areas are strong, you have already covered a large part of the exam.
4. Practice Past Questions
Do not just read—practice. Solve past questions regularly. This helps you understand how questions are set and improves your speed and accuracy.
5. Learn Definitions Properly
Many questions require correct definitions. Learn standard definitions for terms like diffusion, osmosis, turgidity, and supporting tissues. Write them in simple and correct English.
6. Pay Attention to Keywords
Words like “define,” “state,” “describe,” and “explain” mean different things. Answer exactly what is required. Do not write too much or too little.
7. Revise Regularly
Do not wait till exam period. Revise your notes every week. Short revision keeps your memory fresh and reduces exam tension.
8. Be Neat and Organized
Write clearly. Leave spaces between answers. Label diagrams properly. A neat script gives a good impression and helps you score higher.
9. Stay Confident in the Exam Hall
Read all questions carefully. Start with the ones you know well. Manage your time properly. Avoid panic—it can make you forget what you already know.
Final Advice
Biology is simple when you approach it the right way. Read, understand, practice, and revise. Do your part, and success will follow.
It’s a wrap!
If you need more clarification on SS2 Second Term Questions on Biology, you can use the comments box below. We’ll be there to answer you asap. Don’t forget to join our Free Online Tutorial Classes on YouTube. (Subscribe to the Channel)
Best wishes from yours sincerely, HD.
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