Integrated Science WASSCE 2014

1. Gum bleeding in humans is caused by the deficiency of?

A. vitamin A
B. vitamin B
C. vitamin C
D. vitamin D

2. Kerosene, diesel and bitumen are obtained from crude oil by a process called

A. cracking
B. chromatography
C. sublimation
D. fractional distillate

3. A machine is classified as a first class lever when the

A. pivot is between the load and effort
B. load is between the effort and pivot
C. pivot is beyond the effort
D. load is before the pivot and effort

4. Which of the following signs is associated with parturition in a cattle?

A. The belly becomes distended and drops
B. The vulva becomes contracted
C. Difficulty in urination
D. The udder becomes smaller

5. In the digestive system of a mammal, fatty acids and glycerol are absorbed in the

A. caecum
B. duodenum
C. ileum
D. stomach

6. An ion X has 16 protons, 17 neutrons and 18 electrons. Which of the following statements about X is correct? X is

A. a cation with one positive charge
B. a cation with two negative charges
C. an anion with two negative charges
D. an anion with one negative charge

7. A wet piece of cloth dries faster than folded because the

A. temperature will be even in the cloth
B. water will drip out of the cloth faster
C. large surface area will aid evaporation of water
D. water will be distributed evenly in the cloth

8. Fertilization in humans usually occurs in the

A. ovary
B. oviduct
C. uterus
D. vagina

9. In the preparation of local soap, the ash of plantain peels is added to the palm oil in order to

A. thicken the oil
B. give colour to the soap
C. provide alkali
D. give the soap a pleasant smell

10. Which of the following management practices ensure the raising of healthy chicks?

I. Controlling of human traffic to the brooder house
II. Debeaking chicks when they are two weeks old
III. Ensuring good ventilation in the brooder house
IV. Visiting older chicks first before brooding chicks

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

11. Consider the energy transformation below:

Electrical energy –> magnetic energy –> kinetic energy –> sound energy

In which of the following devices will the energy transformation occur?

A. Electric bell
B. Electric fan
C. Electric kettle
D. Transformer

12. In flowering plants, mineral salts are transported through the

A. cambium
B. phloem
C. stomata
D. xylem

13. The apparatus illustrated is a
2014 q13 14 best click series android apps past questions wassce
A. stirring rod
B. retort stand
C. pair of tongs
D. test tube holder

14. The apparatus is used to
2014 q13 14 best click series android apps past questions wassce
A. crush solids
B. hold objects in firm position
C. take small quantities of substances
D. hold a test tube during heating

15. The frictional force between two bodies depends on the

A. area of the surface in contact
B. speed at which the bodies are moving
C. nature of the surfaces of the bodies in contact
D. moment of the bodies in contact

16. Which of the following statements about anaerobic respiration is correct?

A. Oxygen gas is released
B. Oxygen gas is used up
C. Glucose is broken down
D. Carbon dioxide and water are produced

17. Consider the chemical equation below:

CH3COOOH + C2H5OH = CH3COOC2H5 + H2O

The equation represents

A. an addition reaction
B. a neutralization reaction
C. an esterification reaction
D. a saponification reaction

18. Which of the following methods could be used to control waterlogginq in soils?

A. Drainage
B. Irrigation
C. Leaching
D. Mulching

19. When an n-p-n transistor is used as simple amplifier, the base-emitter junction is

I. forward biased
II. reverse biased
III. neutral

Which of the following statements is/are correct?

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

20. Which of the following movements occur when the arm of a human is bent?

A. Biceps relaxes and triceps contracts
B. Biceps contracts and triceps relaxes
C. Both biceps and triceps relax
D. Both biceps and triceps contract

21. Chemical properties of organic compounds are determined by the

A. functional group
B. substituent group
C. number of hydrogen atoms
D. number of carbon atoms

22. A small metal block is 12 cm long, 6 cm high and 4 cm wide. If it has amass of 1.5 kg, determine its density.

A. 0.2 g cm-3
B. 5.2 g cm-3
C. 192 g cm-3
D. 288 g cm-3

23. In a certain breed of cattle, black fur was dominant over the white fur. Determine the possible genotype of a cattle with black fur which produces a white calf.

A. BB
B. BW
C. Bw
D. Bb

24. Which of the following gases is environmentally friend when present in large quantities?

A. Methane
B. Nitrogen
C. Carbon monoxide
D. Hydrogen sulphide

25. The difficulty encountered by pigs is loosing body heat through perspiration could be overcome by

A. deworming the pigs
B. using dry bedding in the sty
C. providing fresh clean water in the sty
D. avoiding overcrowding of pigs in the sty

26. Regular reflection of light occurs when the reflector is

A. smoother with black surface
B. smoother with shiny surface
C. rough with black surface
D. rough with white surface

27. The main advantage of sexual reproduction over asexual reproduction is that sexual reproduction

A. takes place at all times
B. is quicker than asexual reproduction
C. brings about variation than asexual reproduction
D. provides more offspring than asexual reproduction

28. Maize is a cereal because it

A. produces seeds
B. has narrow leaves
C. has long roots
D. grows in marginal soil

29. Which of the following pairs of elements can combine to form an ionic compound?

A. C and O
B. Al and Mg
C. H and S
D. Cu and O

30. Which of the following characteristics can be used to distinguish between the same note played on a piano and an organ?

A. Beat
B. Loudness
C. Pitch
D. Quality

31. The relative proportion of various particle sizes in a given soil sample is called

A. coarseness
B. profile
C. structure
D. texture

32. An object placed between a converging lens and its principal focus produces an image which is always

I. erect
II. virtual
III. real
IV. magnified

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

33. Which of the following substances is excreted by the skin of humans?

A. water and urea only
B. salts and urea only
C. salts and water only
D. salts, urea and water

34. The general molecular formula of alkanes is

A. CnH2n
B. CnH2n-2
C. CnH2n-1
D. CnH2n+2

35. Transfusion of incompatible blood into a patient may lead to

A. production of antigens
B. formation of clots of blood
C. rapture of red blood cells
D. reduction in the number of which blood cells

36. Yam is propagated through its tuber because the tuber bears

A. buds
B. internodes
C. nodes
D. adventitious roots

37. Which of the following salts can cause temporary hardness of water?

A. CaSO4
B. MgCl2
C. Fe2(SO4)3
D. Ca(HCO3)

38. Mercury is used as a thermometric liquid because it

A. has a low heat capacity
B. is colourless
C. does not vapourise
D. has a high density

39. Tsetsefly is the vector of the organism that causes

A. elephantiasis
B. malaria
C. sleeping sickness
D. river blindness

40. Policies aimed at conserving natural resources should ensure that the

A. resources of the country are exposed for foreign exchange
B. citizens of the country help to keep the environment clean
C. resources to sustain the present and future generations are properly managed
D. resources are manages such that every citizen can obtain a fair share of the national cake

41. The tool illustrated is
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A. sickle
B. shear
C. rake
D. mattock

42. The tool is used to
2014 q41 42 best click series android apps past questions wassce
A. lift and turn the soil
B. turn compost heap
C. uproot small stumps
D. level and gather rubbish

43. Which of the following process in living organisms take place by diffusion?

I. Removal of waste products from plants and animals
II. Absorption of mineral salts by plants from soil through roots hair cells
III. Digested food, mineral salts and get into blood stream
IV. Absorption of water in the large intestine of mammals

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

44. The power rating of an electric stove is 750 W. Determine the current flowing through it if its resistance is 15 Ω

A. 7.07 A
B. 50.00 A
C. 62. 50 A
D. 6350.00 A

45. In an ecological study, small animals such as ants found on leaves and crevices can be collected by

A. pooter
B. quadrat
C. transect
D. sweep net

46. Which of the following factors account for the rate of production of hydrogen in the reaction below:

2HCl + Mg → H2 + MgCl2

I. Concentration of the acid
II. Surface area of the magnesium
III. Temperature
IV. Pressure of the atmosphere

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

47. A bell jar contains a ringing bell. As the air inside is pumped out, the sound intensity gradually decreases because

A. a medium is needed for sound transmission
B. the sound has turned into stationary waves
C. the sound cannot pass through the solid jar
D. the air inside the jar is heated

48. Which of the following activities are performed when a person is involved in an electric shock?

I. Using a dry material to put off the main source of electric supply
II. Covering the victim with extra clothing for warmth
III. Massaging the victim
IV. Administering artificial respiration to sustain the victim

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

49. Dipping is an important husbandry practice in farm animal production because it

A. controls endoparasites
B. prevents bacterial attack
C. controls ectoparasites
D. improves upon growth rate

50. The seed of a flowing plant imbibes water through the

A. hilum
B. integument
C. micropyle
D. testa

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