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 SS1 Third 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 Facebook. (Like and Follow Page)
Table of Contents
Introduction to Biology as a School Subject
Biology is the study of living things and their interactions with one another and the environment. As a school subject, it helps students understand how the human body works, the structure and functions of plants and animals, and the importance of maintaining a healthy environment. Biology lays the foundation for careers in medicine, agriculture, environmental science, and many other fields.
The subject is offered by students in Senior Secondary School as Biology.
Biology Exam Questions for SS1 Third Term
Biology Exam Questions for SS1 Third 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 follow specific instruction and answer the required number of questions.
Note that what you have below are SS1 Biology Third Term Exam Past Questions made available to assist students in their revision for 3rd term examinations and also teachers in structuring standard examinations.
SECTION A: Objectives
Instruction: Answer all questions in this section by choosing from the options lettered A—D. Each question carries equal marks.
1. The green extended structure formed by the modification of petiole which enables photosynthesis is the.
A. Cotyledons B. Spines
C. Phyllode D. Leaf
2. Which of the following organism carry out external fertilization?
A. Reptiles B. Amphibian
C. Aves D. Mammals
3. The natural dwelling place of an organism is its
A. Ecological niche
B. Environment
C. Vegetation
D. Habitat
4. The association between two organisms in which one of the organisms gains and the other loses is referred to as
A. Saprophytism B. Lichen
C. Parasitism D. Mutualism
5. The process by which plants manufacture food from CO₂ and H₂O using energy from the sun is called
A. Photosynthesis
B. Chemosynthesis
C. Autotrophy
D. Heterotrophy
6. The shoot of a flowering plant develops directly from which of the seed.
A. Radicle B. Plumule
C. Cotyledon D. Stem
7. The lamina of a leaf consist of the following parts except
A. Mid rib B. Margin
C. Veinlet D. Stalk
8. The soluble end products of Rhizopus diffusion are assimilated in the
A. Cytoplasm B. Nucleus
C. Mitochondria D. Mycelium
9. The enzymes secreted at the tip of the Rhizoids in Rhizopus are:
A. Amylases and Lipases
B. Proteases and Amylases
C. Pepsin and Amylases
D. Amino acid and glucose
10. The sporophyte stage in moss plant consist the following except
A. Capsule B. Spores
C. Seta D. Rhizoids
11. Which of these best describe the shape of Banana leaf?
A. Cordate B. Oblong
C. Ovate D. Oval
12. Which of these is the correct sequence involved in fungal reproduction?
A. Gametangia → Karyogamy → Plasmogamy → Meiosis
B. Gametangia → Meiosis → Plasmogamy → Karyogamy
C. Plasmogamy → Karyogamy → Meiosis → Gametangia
D. Gametangia → Plasmogamy → Karyogamy → Meiosis
13. The dominant phase in Funaria hygrometrica is the
A. Sporophyte
B. Gametophyte
C. Both the gametophyte and sporophyte
D. None of the above
14. The male and female branch in a moss plant are found within the
A. Sporophyte B. Rhizoids
C. Capsule D. Gametophyte
15. The stem of Dryopteris is thick and covered with numerous small brown scales called
A. Fronds B. Sori
C. Ramenta D. Seta
16. All these plants possess adventitious root except
A. Yam B. Tumeric
C. Onion D. Coconut
17. The sporophyte generation dominates in which of these plants.
A. Dryopteris
B. Funaria
C. Moss
D. All of the above
18. The reproductive parts of the angiosperm give rise to
A. Fruits and seeds only
B. Flowers and leaves only
C. Stems, leaves and fruits only
D. All of the above
19. All these are vegetative parts of a flowering plant except:
A. Roots B. Branches
C. Stems D. Leaves
20. The shoot consist of the following except:
A. Stem, roots and flowers
B. Roots, leaves and stem
C. Leaves, stem and flowers
D. Plumule, stem and leaves
21. Which of these statements is correct about the root system?
A. Positively phototropic, exogenous and non-green
B. Exogenous, positively geotropic and ascending
C. Endogenous, non-green and geotropic
D. Geotropic, exogenous and descending
22. The 2 main organs found in the shoot system are:
A. Stem and leaves
B. Flowers and leaves
C. Stem and flowers
D. Fruits and leaves
23. The portion where leaves and branches arise from within the stem regions is called
A. Internode B. Nodes
C. Branches D. Bud
24. Which of these stems are found in sweet potato?
A. Creeping stem
B. Leaning stem
C. Herbaceous stem
D. Modified stem
25. Which of these stems is strictly found in dicotyledonous plants?
A. Herbaceous and creeping
B. Woody and leaning stems
C. Creeping and leaning stems
D. Herbaceous and woody stems
26. The stem modification for food storage and vegetative propagation is the
A. Underground stem
B. Tendrils
C. Thorns and spines
D. Storage leaves
27. Which of these statements is correct?
A. Stem branches are endogenous
B. Root ends in buds and caps
C. Stem are phototropic and ascending in origin
D. Root are ascending and geotropic in origin
28. The arrangement of leaves on the stem or branch of a plant is known as
A. Phyllotaxy
B. Venation
C. Transpiration
D. Acropetal order
29. The main parts of a leaf includes the following except:
A. Petiole B. Lamina
C. Base D. Mid rib
30. Which of these plants possess a reticulate venation?
A. Rice B. Mango
C. Maize D. Sugarcane
31. Which of these plants possess a digitate leaf?
A. Cotton
B. Pride of Barbados
C. Cassava
D. Acacia
32. An imparipinnate leaf is said to be
A. Bifoliate B. Unifoliate
C. Trifoliate D. Multifoliate
33. Umbrella tree possess a typical leaf feature known as
A. Palmate
B. Simple
C. Simple palmate
D. Compound palmate
34. All these leaves possess whorled phyllotaxy except:
A. Calotropis B. Allamanda
C. Altonis D. Nerium
35. The leaf plotter contains digestive juices and equally enables it to fulfill the need of
A. Oxygen B. Carbon
C. Nitrogen D. hydrogen
36. All these plants possess leaves modified for climbing except:
A. Pumkin B. Cactus
C. Cucumber D. Watermelon
37. Which of the following is a carnivorous plant?
A. Sundew B. Acacia
C. Cactus D. Opuntia
38. Which of these plants has an oval leaf shape?
A. Grass B. Hibiscus
C. Ixora D. cocoyam
39. The cell component described as the “power house” of the cell is the
A. Endoplasmic reticulum
B. Nucleus
C. Mitochondria
D. Golgi bodies
40. According to the classification of living organisms, “Family” is placed at which level?
A. 3rd B. 4th
C. 2nd D. 5th
41. Which of these organisms uses pseudopodia for locomotion?
A. Amoeba B. Galamydomonas
C. Euglena D. Spirogyra
42. Which of these scientists stated that “cell contains living substance” which he named “protoplasm”.
A. Robert Hooke
B. Felix Dujardin
C. Matthias Schleiden
D. Rudolf von Virchow
43. Fungi stores excess food in form of
A. Cellulose
B. Amino acid
C. Lipid
D. Glycogen
44. The fungal component of Lichen is known as
A. Association B. Mycobiont
C. Phycobiont D. Symbiosis
45. The mutual association which exist between algae and fungi in Lichen is best described as
A. Parasitism B. Commensalism
C. Symbiosis D. Saprophytism
46. Which of these phylum refers to the “Round worms”?
A. Annelida B. Platyhelminthes
C. Nematoda D. Myriapoda
47. In the life circle of earthworm, the egg is enclosed in a casing called
A. clitellum B. Cocoon
C. Chaetae D. Sac
48. Gaseous exchange in Molluscs occurs through
A. Gills B. Body surface
C. Mantle D. Shell
49. All these organisms are Arachnids except
A. Mites B. Ticks
C. Spiders D. Beetles
50. Coxal glands is an excretory organ found among
A. Terrestrial arthropods
B. Aquatic Arthropods
C. Crustaceans
D. Mollusca
51. Which of these organisms has 3 pairs of appendages?
A. Spiders B. Grasshopper
C. Crabs D. Scorpions
52. Rod and cone cells are found in which part of the body?
A. Brain B. Ear
C. Eyes D. Sperm
53. Which of the cell components contains cell sap which acts as an osmo regulator?
A. Nucleus B. Chromosome
C. Vacuole D. Mitochondria
54. Which of these organisms is the least in order of evolution?
A. Sponges. B. Hydra
C. Tapeworm D. Earthworm
55. Absorption of nutrients by tapeworm is due to the presence of
A. Hooks
B. Suckers
C. Long flattened body
D. Proglottides
56. Snails belong to which of these class of organisms?
A. Mollusca
B. Gastropoda
C. Segmented worms
D. Crustacea
57. All these are Echinoderms except
A. Star fish
B. Ray fish
C. Brittle star
D. urchins
58. All these are tissues found in higher animal except:
A Bone B. Cartilage
C. Blood D. Wings
59. The postulation of cell theory was in the year
A. 1839 B. 1855
C. 1665 D. 1838
60. The study of structure and functions of cells is known as
A. Anatomy B. Genetics
C. Ecology D. Cytology
SECTION B: Essay
INSTRUCTION – Answer all five (5) questions in this section.
1. In Rhizopus nigricans, the tips of the rhizoid secret two enzymes:
(i) Name the enzymes
(ii) What classes of food substance do they act upon during extra cellular digestion?
(iii) List the end product after the extracellular digestion in (ii) above.
2. The Antheridia and Ascogonia of fungal gametangia are sexually compatible, briefly explain the phases involved in this reproduction.
3. The tropic movements in the root and shoot system of a flowering plant can either be positive or negative. State the respective movements with respect to sunlight and gravity.
4a. Draw a broad compound pinnate leaf having parallel venation.
b. State the main reason for phyllotaxy.
5a. What is binary fission?
b. Using diagrammatic illustrations only, show conjugation in Paramecium.
Answers to Biology Exam Questions for SS1 Third Term
Answers to Section A (Objective Test)
The following table gives the correct answers to the objective section of Biology exam questions for SS1 Third 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 | C | 2 | B | 3 | D |
| 4 | C | 5 | A | 6 | B |
| 7 | D | 8 | D | 9 | B |
| 10 | D | 11 | B | 12 | D |
| 13 | B | 14 | D | 15 | C |
| 16 | D | 17 | A | 18 | A |
| 19 | B | 20 | A | 21 | C |
| 22 | A | 23 | B | 24 | D |
| 25 | D | 26 | A | 27 | C |
| 28 | A | 29 | D | 30 | B |
| 31 | C | 32 | D | 33 | D |
| 34 | C | 35 | C | 36 | B |
| 37 | A | 38 | C | 39 | C |
| 40 | B | 41 | A | 42 | B |
| 43 | D | 44 | B | 45 | C |
| 46 | C | 47 | B | 48 | C |
| 49 | D | 50 | C | 51 | B |
| 52 | C | 53 | C | 54 | A |
| 55 | C | 56 | B | 57 | B |
| 58 | D | 59 | A | 60 | D |
So here you have the answers to the objective section of Biology Exam Questions for SS1 Third 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)
(i) The enzymes are amylase and protease.
(ii) Amylase acts on carbohydrates, and protease acts on proteins during extracellular digestion.
(iii) The end products are:
- Amylase → Simple sugars (e.g. glucose)
- Protease → Amino acids
Sexual reproduction in fungi like Ascomycota involves three main phases:
- Plasmogamy: Fusion of the cytoplasm of the antheridium and ascogonium.
- Karyogamy: Fusion of the nuclei from both gametangia to form a diploid nucleus.
- Meiosis: The diploid nucleus undergoes meiosis to produce haploid spores, which are dispersed for new growth.
3. The tropic movements in the root and shoot system of a flowering plant can either be positive or negative. State the respective movements with respect to sunlight and gravity.
- Shoot system: Positively phototropic (grows towards sunlight), negatively geotropic (grows away from gravity).
- Root system: Negatively phototropic (grows away from sunlight), positively geotropic (grows towards gravity).
The main reason for phyllotaxy is to maximize sunlight capture by preventing shading of leaves, thereby enhancing photosynthesis.
Binary fission is an asexual method of reproduction in unicellular organisms, where the parent cell divides into two genetically identical daughter cells.5b. Using diagrammatic illustrations only, show conjugation in Paramecium.
Read Also: SS1 Second Term Exam Questions on Agricultural Science
How to Pass Biology Exam Questions for SS1 Third Term
Passing your Biology exam questions for SS1 Third term requires a combination of preparation, understanding, and strategy. Here are actionable tips to help you excel:
1. Study the topics in your syllabus: Focus on key areas such as reproduction in plants and animals, ecology, food chains and webs, and conservation of natural resources.
2. Create a study timetable: Allocate time to read Biology every day. Break the topics into smaller parts to avoid being overwhelmed.
3. Use diagrams and illustrations: Biology is a subject that involves a lot of drawings. Practice labelled diagrams of leaves, reproductive organs, food chains, etc.
4. Answer past questions: Get SS1 Third Term past questions and answers. This will help you understand the exam pattern and common question formats.
5. Attend classes and take notes: Your teacher will explain difficult concepts. Don’t miss class and make sure you revise your notes regularly.
6. Group study helps: Discussing Biology with friends can help you remember more. Teaching someone else is also a powerful way to understand a topic.
7. Practice objective and essay questions: Prepare for both multiple choice and theory questions. Learn how to answer Biology essay questions step by step.
8. Stay calm and pray: Don’t panic during the exam. Read the questions carefully and do your best. Say a short prayer before you begin.
With serious preparation and faith in God, you will pass your Biology exam with flying colours.
It’s a wrap!
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Best wishes.
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