Integrated Science WASSCE NOV/DEC Private 2012

1. Which of the following diseases results from a vitamin deficiency?

A. scariasis
B. dysentery
C. scurvy
D. tuberculosis

2. Viruses can only multiply when they are present in

A. culture solution
B. living organism
C. dead matter
D. sugary medium

3. The diameter of a drinking cup can be measured using a

A. micrometer screw guage
B. vernier calliper
C. spherometer
D. spring balance

4. The hormone that controls the level of sugar in the blood of a mammal is

A. adrenaline
B. insuline
C. testoterone
D. thyroxin

5. Which of the following properties is common to all metals? They

A. have high melting points
B. are soluble in water
C. react with dilute sulphuric acid
D. conduct electricity

6. The part of a plant on which the shoot system is attached during the process of grafting is called the

A. budwood
B. callus
C. rootstock
D. scion

7. Which of the following processes leads to variation in the same species of organisms?

A. Mitotic cell division
B. Meiotic cell division
C. Cytokenesis
D. Implantation

8. Land and sea breezes occur as a result of

A. convectional currents
B. the different phases of the moon
C. the revolution of the earth
D. heat transfer by conduction

9. The number of protons, neutrons and electrons present in the Isotope

A. 17 protons, 17 electrons, 17 neutrons
B. 17 protons, 37 electrons, 17 neutrons
C. 17 protons, 17 electrons, 20 neutrons
D. 17 protons, 37 electrons, 20 neutrons

10. Which of the following characteristics are associated with ionic compounds?

I. High melting point
II. High solubility in water
III. low melting point
IV. high electrical conductivity in solution

A. I and II only
B. I and III only
C. I and IV only
D. I, II and IV only

11. NaCI possesses characteristic IV because it

A. forms ions in solution
B. dissolves in water to form a solution
C. produces tasty solution
D. forms a colourless solution

12. The kidney is important to the human body because it

A. converts nitrogenous compounds such as ammonia into urea and uric acid
B. produces a hormone called adrenaline
C. removes nitrogenous compounds from blood and also eliminates excess water and salt
D. excretes carbon dioxide and water vapour

13. Green manure becomes beneficial to soil when

A. the soil is free from pests
B. it is grown with fertilizer
C. it is ploughed into moist soil just before flowering
D. it is ploughed into moist soil after harvesting

14. Which of the following statements about an atom is correct?

A. protons outnumber electrons in a neural atom
B. Neutrons are contained in the nucleus of the atom
C. the L electron shell is the closes to the nucleus
D. the atomic number is greater than the mass number

15. The vector responsible for the spread of yellow fever is

A. aedes mosquito
B. anopheles mosquito
C. culex mosquito
D. housefly

16. A stone tied to the end of a rope and whirled round performs a type of motion called

A. oscillatory
B. circular
C. rectilinear
D. rotational

17. During the purification of water for public consumption, chlorine is added to the water in order to

A. destroy bacteria
B. make the water clean
C. given the water taste
D. neutralize the base in the water

18. The type of mammalian vertebrae illustrated in the diagram below is
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A. Tea caudal
B. cervical
C. lumber
D. thoracic

19.  A solution of 2.0 M HCI was diluted to 50cm 3 of 0.1 MHCI. Determine the initial volume of the acid

A. 2.5cm 3
B. 4.5 cm 3
C. 5.0 cm 3
D. 25.0 cm3

20. When a hydrometer floats in a liquid it means that

A. acceleration due to gravity is not acting on it
B. the relative density of liquids is unity
C. the surface tension of the liquid is just sufficient to support the hydrometer
D. the weight of the liquid displaced is equal to the weight of hygrometer

21. An example of a natural polymer is

A. polythene
B. polysaccharide
C. polystyrene
D. polyvinylchloride

22. Which of the following kingdoms possesses vascular tissue?

A. animalia
B. plantae
C. prokaryotae
D. protoctista

23. A general term used to describe the process in which a metal is tarnished through a chemical reaction is

A. corrosion
B. electroplating
C. galvanisation
D. rusting

24. A characteristic feature of wind pollinated flower is the presence of

A. nectar
B. sticky pollen grains
C. scented flowers
D. feathery stigma

25. Blood clotting is important to the human body because it

A. allows oxygen to be transported in the blood
B. prevents excessive loss of blood and entry of germs
C. causes even distribution of blood through the body
D. gets rid of excess blood in the body

26. Detergents are preferred to soaps because

A. detergents lather more than soap
B. soaps form scum in any type of water
C. detergents can be used in any type of water
D. soaps are less efficient in removing dust

27. Consider the following statements about formation of soil

I. lichens aid the formation of soil from rocks
II. the action of weak carbonic acid on rocks is chemical weathering
III. high temperatures follow immediately by very cold conditions can result in weathering of rocks
IV. Molten magma from volcanic eruption solidifies to give rise to soil directly

A. I and II only
B. II and IV only
C. I, II and III Only
D. II, III and IV only

28. Calcium is needed in the human body for the

A. development of strong bones and teeth
B. production of thyroxin
C. formation of blood plasma
D. formation of haemoglobin

29. An air conditioner is rated 1000 W, 240 V. Determine the current it draws when working

A. 0.24 A
B. 2.04 A
C. 4.17 A
D. 8.34 A

30. Soil conservation can be achieved through

A. introduction of green manure
B. intercropping
C. agro forestry
D. mixed cropping

31. Which of the following characteristics in humans can be classified as inherited characteristic?

A. intelligence
B. muscle development
C. hair colour
D. scar

32. Which of the factors listed below are considered when selecting a site for a poultry farm?

I. well drained flat land
II. suitable temperature
III. land for future expansion
IV. proximity to source of water and electricity

A. I only
B. I and II only
C. II, II and IV only
D. I, II and Iv only

33. A converging lens of focal length 15.0cm produces an image of an object placed 45.0cm from it.
Determine the image distance from the lens

A. 3.0cm
B. 15.0cm
C. 22.5cm
D. 30.5cm

34. A livestock parasite that can be controlled by the drenching method is

A. mite
B. roundworm
C. tick
D. tsetsefly

35. One of the factors to be considered for safe blood transfusion is

A. weight of the recipient
B. age of the recipient
C. thesus factor of the donor and the recipient
D. social lass of the donor

36. The reason for using keepers to store magnets is to

A. increase the strength of the magnet
B. cancel the effect of the earth’s magnetism
C. protect the magnets when they fall
D. reduce self-demagnetization

37. Which of the following practices promotes the growth of more lateral branches in a hedge plant?

A. water the plants regular
B. pruning the plants regularly
C. application of fertilizer to the plants
D. erecting a fence to support the plant

38. The diagram below illustrates a
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A. hand fork
B. hand trowel
C. hoe
D. secateurs

39. The diagram illustrated is used to
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A. remove roots and other obstacles from the soil
B. remove weeds
C. transplant seedlings
D. stir soil on garden beds

40. Which of the following substances is the by-product of photosynthesis?

A. carbon dioxide
B. glucose
C. oxygen
D. water

41. A quantity of water of mass 5.0kg is heated through a temperature of 5.0 degrees C. Determine the heat energy used in the process.[Specific heat capacity of water is 4200 Jkg-1 K-1J]

A. 50.0kJ
B. 85.0kJ
C. 105.0kJ
D. 115.0kJ

42. The presence of mitochondria in a plant cell indicates the cell can

A. produce amino acids
B. divide by mitosis
C. manufacture their own food
D. produce energy

43. Which of the following statements about simple machines are correct? They are used to

I. multiply force
II. multiply speed
III. cook food

A. I and II Only
B. III and IV only
C. I, II and III only
D. I, II and IV only

44. The micro-organisms that usually cause food decay are

A. bacteria and fungi only
B. bacteria and viruses only
C. fungi and viruses only
D. bacteria, fungi and viruses

45. The main reason for screening water flowing from rivers into fish ponds is to

A. make the water clear
B. eliminate stray fish
C. eliminate water weed
D. prevent overflooding

46. An ecosystem can best be described as a

A. complete ecological unit that can be studied
B. place where carnivores and omnivores live
C. diagram showing a complex food relationship
D. study of living things and their environment

47.  A wave of frequency 2000 Hz has a wavelength of 10.0cm. Determine the velocity of the wave.

A. 10ms -1
B. 20ms-1
C. 100ms-1
D. 200ms-1

48.  Which of the following pairs of organic compounds will both decolorize bromine water?

A. C3H4 and C4H8
B. C2H4 and C3H8
C. C4H10 and C5H12
D. C2H6 and C3H6

49. Which of the following characteristics are associated with the respiratory surface of mammals?

I. large surface area
II. thick walled
III. always moist
IV. highly vascularised

A. I and II only
B. III and IV only
C. I, II and III only
D. I, III and IV only

50. Weeds are removed from a fish pond in order to prevent

A. absorption and usage of dissolved oxygen in the water
B. reduction of the amount of faecal contamination of water
C. penetration of sunlight essential for photosynthesis
D. regulation of the amount of the organic manure in water

51. An instrument used to detect the presence of an electric currents is a/an

A. ammeter
B. galvanometer
C. rehostat
D. voltmeter

52. During the process of fertilization in humans only one sperm is involved because

A. all other sperms reaches the egg
B. only one sperms reaches the egg
C. other sperms are unable to penetrate the egg
D. only one sperm is released at a time

53. An Alkanoic acid reacts with an alkanol to form

A. alkane
B. alkanoate
C. alkene
D. alkyne

54. Which of the following activities may pollute water bodies?

I. spillage of oil into the sea
II. discharge of waste from factories into rivers
III. discharge of treated sewage into streams and lakes
IV. washing of excess fertilizers from farmlands into rivers

A. I and II Only
B. I, II and IV only
C. I, III and IV only
D. I, II, III and IV

55. A force of 30.0N moves a body through a distance of 1.5m in the direction of the force. Determine the work done.

A. 20.0J
B. 25.0J
C. 31.5J
D. 45.0J

56. The small intestine of mammals is very long. This is an advantage because it

A. prevents the animal from hunger
B. allows water to be absorbed faster
C. provides enough surface area for digestion to be completed
D. enables digestion to occur at a faster rate

57. Which of the following vegetables provides the largest amount of roughage in diet of humans?

A. beans
B. cabbage
C. carrot
D. pepper

58. In computer science, a bit refers to the

A. smallest unit of information
B. sequence count
C. memory
D. count hundredth unit count

59. Which of the following devices is used as a thermostat?

A. bar and gauge
B. thermometer
C. bimetallic strip
D. ball and ring

60. A phenomena that is caused by the moon is

A. earthquake
B. sea breeze
C. tide
D. volcano

[WpProQuiz 45]