FEDERAL GOVERNMENT BOYS’COLLEGE, ABUJA
RD
3 TERM EXAMINATION 2023/2024 ACADEMIC SESSION
SUBJECT: BIOLOGY CLASS: SS1
SECTION A: OBJECTIVE
INSTRUCTION: ANSWER ALL QUESTIONS FROM THIS SECTION
1. A group of closely related organism capable of inter breeding to produce fertile offspring are known as members
of (a) Kingdom (b) Class (c) Family (d) Species
2. A beaker of pond water containing few specimens of euglena was placed in a dark room for two weeks. At the end
of this period, the specimen of euglena was still alive because they were (a) able to carry out holozoic nutrition (b)
able to carry out photosynthesis using carbon dioxide in the pond water (c) better adapted to the life in darkness
than to life in light (d) not over crowded.
3. The cytoplasm of the cell is considered a very important component because it (a) regulates the amount of energy
in the cell (b) suspends all cell organelles (c) is the outermost part of the cell (d) is solely responsible for cell
division.
4. Two organelles directly involve in mitotic cell division are (a) nucleus and mitochondria (b) ribosome and nucleus
(c) centriole and Golgi apparatus (d) nucleus and centriole
5. The following statements about mitotic cell division are correct except that (a) it occurs only in young cell (b) it
occurs in somatic cell (c) the chromosome number of the daughter cell is the same as that of the parent cells. (d)
the genetic composition of the mother cell is the same as that of the daughter cell.
6. The longest bone in the body is the (a) humerus (b) femur (c) scapula (d) tibia
7. Which of the following structures is not a skeletal material (a) chitin (b) cartilage (c) bone (d) muscle
8. Which of the following processes removes carbon from the atmosphere (a) putrefaction (b) photosynthesis (c)
volcanic eruption (d) developed ovary
9. The mesophyll layer of a leaf consists of (a) wax and cutin (b) cell with lignified walls (c) irregular shaped
collenchyma cells (d) photosynthetic paranditma cells
10. An organism whose source of carbon is in organic is likely to be a/an (a) heterotrophic organism (b) autotrophic
organisms (c) symbiotic organism (d) parasitic organism
11. Which of the following organisms is an endoparasite (a) mice (b) mosquito (c) Ascaris (d) Dodder
12. Which of the following statements about ecosystem is false? (a) All the energy entering ecosystem is passed on to
decomposers (b) the primary producers provide energy for herbivores and carnivores (c) ecosystem must start
with capture of energy by autotrophs (d) Energy transfer from one trophic level to the other is not 100% efficient.
13. Which of the following instrument is used to estimate the number of plants in a habitat? (a) pooter (b) pit falls trap
(c) quadrat (d) sweep net
14. Which of the following statement is true about sandy soil? (a) Has limited air space (b) Is light and easy to dig (c)
drains slowly (d) it is heavy and poorly aerated.
15. Which of the following organisms is a primary consumer? (a) Dog (B) Sheep (c) Grass (d) Fungus
1
16. Most tropical plant shed their leaves during dry weather condition in order to (a) reduce their growth rate (b)
conserve water (c) reduce competition (d) minimise the rate of photosynthesis.
17. Which of the following organisms is not classified as an animal? (a) Amoeba (b) Paramecium (c) Euglena (d)
Obelia
18. An organism that operates at the cellular level of organisation, carries out its physiological activities by using its
(a) cell membrane (b) organelles (c) small size (d) cytoplasm
19. The organelles which eliminate water from the body of protozoa is the (a) plasma membrane (b) contractile
vacuole (c) nucleus (d) cell wall
20. Which of the following cell types has the least number of mitochondria? (a) cardiac cell of the heart (b) cells of
the cornified layer (c) muscle cell of the bladder (d) muscle cell of the diaphragm
21. A typical plant cell is mainly distinguished from an animal cell by the possession of (a) chloroplast and nucleus
(b) cell wall and cytoplasm (c) chloroplast and cell wall (d) cell wall and mitochondria
22. Which of the following characteristics do fungi share in common with animals? (a) Presence of digestive tract (b)
movement from one place to another (c) storage of carbohydrate as glycogen (d) movement of centrioles during
cell division.
23. Which of the following process involves diffusion? (a) opening and closing of stomatal spores (b) Turgidity of
herbaceous plants (c) Absorption of water through the roof hairs (d) Absorption of digested food into the villi
24. In cellular respiration, energy is made available to organism by (a) Removal of a phosphate group from ADP (b)
breaking off a phosphate group from ATP (c) Adding a phosphate group to glucose (d) breaking off a hydrogen
ion from NADPH
25. The axial skeleton is compose of the (a) skull and vertebrate column (b) limbs and girdles (c) Atlas and axis (d)
radius and ulna
26. The inorganic component of bone consists of (a) magnesium, sodium & calcium (b) magnesium, phosphorus &
calcium (c) sodium, phosphorus & calcium (d) potassium, magnesium and calcium
27. In testing for starch in a leaf, the leaf is first boiled in water for about a minute so that (a) cell walls are hardened
(b) cells are killed (c) chlorophyll is dissolve out (d) Iodine will penetrate.
28. A herbivore cannot feed on a piece of meat because it has no (a) incisors to cut the meat (b) canines to tear up the
meat (c) premolar to grind the meat (d) molars to mash the meat.
29. In a particular habitat, the role of an organism is referred to as it’s? (a) level (b) biomass (c) niche (d) space
30. The speed of wind is measured using the (a) wind vane (b) Anemometer (c) photometer (d) barometer
31. Which of the following is a biotic component of an ecosystem? (a) soil (b) rainfall 9c) light (d) fungi
32. Muscles are attached to bones by means of (a) tendons (b) ligaments (c) cartilage (d) nerves
33. In a population, food shortage may lead to (a) an increased survival rate (b) high reproduction rate (c) intra-
specific competition (d) low rate of migration
34. An example of a saprophytic relationship is a/an (a) vulture feeding on decaying meat (b) mush room growing on
decaying vegetation (c) boy eating stale bread (d) earthworm feeding on decaying vegetation
2
35. Which of the following method is appropriate for the cultivation of cassava? (a) Budding (b) Fragmentation (c)
Root cutting (d) Stem cutting
36. Kreb’s cycle occur in the (a) mitochondria (b) cytoplasm (c) nucleus (d) ribosomes.
37. Which of the following statement about photosynthesis is not true? (a) A plant can photosynthesis without an
increase in dry weight (b) carbon dioxide
38. The following organism are producers except (a) Hibiscus (b) Mushroom (c) Cactus (d) Spirogyra
39. The following are abiotic component of an ecosystem except (a) temperature (b) oxygen (c) bacteria (d) soil
40. In the binomial system of naming organism, the second name is called the (a) scientific name (b) common name
(c) generic name (d) specific name
41. The living material of the cell consist of (a) nucleus and cytoplasm (b) cytoplasm and vacuole (c) cytoplasm and
cell membrane (d) nucleus & cell membrane
42. The writing of the plant is due to the fact that (a) The root hairs die off and can no longer absorb water (b) the salt
solution causes faster rate of transpiration leading to the death of the plant cells. (c) The salt solution has caused
water to be lost from the plant cells leading to loss of turgor (d) The plant tissue has been poisoned by the salt
which is absorbed by the plant.
43. Which of the following activities would revive the plant? (a) covering the plant with dark paper to prevent further
loss from its surface (b) leaving the plant to adapt to the condition (c) exposing the plant to high concentration of
oxygen (d) adding more water to the soil
44. Primary growth in plants is brought about by the activity of the (a) meristem (b) Endodermis c) epidermis (d)
mesophyll
45. To form a ball and socket joint, the head of the Humerus fits into _____ of the scapula. (a) blade (b) glenoid
cavity (c) elocranon fossa (d) patella
46. Which of the following part of the skeleton does not have a protective function? (a) Ribs (b) Carpals (c) Skull (d)
Pelvis
47. Plant hormones include the following except (a) insulin (b) auxin (c) cytokinin (d) gibberellin
48. The part of the young root that pushes its way through the soil is the (a) root hair (b) tap root (c) root cap (d)
lateral root
49. Which of the following food substance give the least amount of calories? (a) Rice (b) groundnut (c) cabbage (d)
egg yolk
50. Filaments of spirogyra placed in a beaker of tap water in a dark cupboard died because (a) The filaments could not
photosynthesize (b) Conjugation could not take place (c) The temperature was too high (d) The plant was over
flooded.
51. The importance of the concentration of chloroplast in the palisade layer of the leaf is for maximum exposure to (a)
carbon dioxide (b) light (c) water (d) oxygen
52. A community is best defined as (a) living things in a habitat interacting with the non -living part of the
environment (b) The total number of individuals of one species of organism living in a particular habitat (c)
3
populations of difference species living together and interacting with each other in one habitat (d) The individuals
of a particular group living together in an area and sharing the same resources.
53. Which of the following is described as an increase in dry weight? (a) reproduction (b) absorption (c) ingestion (d)
growth
54. When zygote of an organism continues to grow, it produces new cells by (a) meiosis (b) crossing – over (c)
gestation (d) mitosis
55. Which of the following characteristics is not possessed by most plant? Ability to (a) move away from stimulus (b)
respire (c) reproduce (d) adapt to environment
56. The basis of growth involves the following except (a) cell reduction (b) cell division (c) cell differentiation (d)
cell enlargement
57. The following describes an example of fertilization in higher organism (a) fusion of sperm and egg nuclei (b)
introduction of sperm into female body (c) male gametes germinating in the pollen (d) a pollen grain landing on a
sticky stigma
58. The following life processes are common to both plants and animals except (a) respiration (b) growth (c)
reproduction (d) photosynthesis
59. The structure used for movement in amoeba is called (a) cilia (b) pseudopodia (c) flagella (d) Endoplasm
60. Which of the following food substance would produce a translucent mark when rubbed on white paper? (a) potato
(b) beans (c) mango (d) groundnut
SECTION B: THEORY
INSTRUCTION: Question one is compulsory, Answer question one and any-other two (2) questions.
1. (a) What is Irritability? (1 mark)
(b)Draw the transverse section of lumber vertebrae (5 marks)
(c)Describe an experiment to show that oxygen is given off during photosynthesis. (5 marks)
(d) State two differences between mitosis and meiosis in a tabular form. (2 marks)
(e) Outline four types of moveable joints found in the mammalian skeleton. (2 marks) (15 marks)
2. (a) (i) what is Ecology? (1mark)
ii) Name one organism that exhibits both plants and animal features. (½ mark)
(iii) State two animal features and two plant features possessed by the organisms named in a(ii) above. (2mrks)
(b) Write short notes on the following forms of Asexual reproduction. (i) Budding (ii) Grafting (iii)
Marcotting(3mks)
(c)List four Animals found in the temperate forest region of the world. (1 mark) (7 ½ marks)
3. (a) What is Cellular Respiration? (1 mark)
(b) State four similarities between plant cell and animal cell (2 marks)
(c)Explain three (3) phases of growth pattern (3 marks)
(d) Enumerate three (3) functions of supporting tissues in plants (1 ½ marks) (7 ½ marks)
4
4. (a)Define the following Ecological concepts: I. Ecological Niche ii. Biome iii. Population. (3 marks)
(b) Mention three organs of a higher plants that can respond to stimulus. (1 ½ marks)
(c) Outline two types of savanna found in Nigeria giving one example in each case of a town where they occur.
(3 marks) (7 ½ marks).
