Integrated Science WASSCE NOV/DEC Private 2014

1. The causative agent of tetanus is a

A. virus
B. protozoan
C. bacterium
D. worm

2. The correct sequential arrangement of the vertebrae along the vertical column of a mammal is

A. cervical, thoracic, lumbar, sacral and caudal
B. thoracic, lumbar, caudal, cervical, and sacral
C. sacral, cervical, thoracic, lumbar and caudal
D. cervical, lumbar, thoracic, sacral and caudal

3. Which of the following statements best describes a food web? Food web is a

A. complex feeding relationship between living organisms in an ecosystem
B. relationship between the living and non-living organisms in an ecosystem
C. relationship between non-living components of an ecosystem
D. relationship between the living organisms in an ecosystem

4. Which of the following systems in the human body is directly affected when carbon monoxide is inhaled?

A. Nervous system
B. Digestive system
C. Circulatory system
D. Excretory system

5. A man heterozygous for the albino gene marries an albino woman. Determine the percentage of albino offspring they are likely to produce.

A. 50%
B. 25%
C. 10%
D. 75%

6. Which of the following statements about small-scale industry is correct? It

A. is always capital intensive
B. is always sited in rural areas
C. makes use of advanced technology
D. operates with the minimum input of materials

7. Which of the following substances present in a green leaf provides evidence that photosynthesis has taken place?

A. Protein
B. Glucose
C. Fats and oils
D. Starch

8. The plant organ illustrated is a
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A. rhizome
B. corn
C. bulb
D. tuber

9. The function of the part labelled I is to
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A. trap sunlight for photosynthesis
B. store food substances
C. develop into lateral branches
D. absorb water and mineral salts from the soil

10. Which of the following conditions are necessary for growth of microbes?

I. Adequate warmth
II. Adequate food supply
III. Availability of oxygen
IV. Availability of dry environment

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

11. The excretory product common to the kidney, lung and skin of a mammal is

A. water
B. salt
C. urea
D. uric acid

12. Which of the following characteristics are possessed by underground stems?

I. Presence of nodes and internodes
II. Storage of food substances
III. Presence of auxiliary buds
IV. Presence of tap root system

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

13. Living cells of plants and animals contain

A. contractile vacuoles
B. chloroplasts
C. cell walls
D. mitochondria

14. Which of the following reasons explain why family planning should be encouraged?

I. Controlling the rate of child birth
II. Discouraging couples from having children
III. Helping the mother to restore her health before another child is born.

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

15. An indication of sexual maturity in a boy is the

A. growth of hair in the armpit
B. expansion of the pelvic girdle
C. growth of grey hair
D. expansion of the mammary glands

16. The dental formula of a mammal is given below. Determine the total number of incisors.
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A. 6
B. 4
C. 2
D. 8

17. The cultural practice of filling in is also known as

A. spacing
B. tilling
C. thinning
D. supplying

18. One advantage of the nitrogen cycle in nature is

A. decrease in ammonia gas concentration in the atmosphere
B. decrease in nutrient balance in the soil
C. decrease in nitrate ions for plants use
D. increase in accumulation of foul smelling plant and animal tissues in the soil

19. Which of the following activities is carried out in a crop production nursery?

A. Pricking out
B. Pruning
C. Mulching
D. Transplanting

20. One difference between a beef cattle and a dairy cattle is that a beef cattle

A. is generally humped
B. has a swollen udder
C. has longer legs
D. is wedge-shaped

21. Groundnut cake used as feed for farm animals is a main source of

A. proteins
B. minerals
C. carbohydrates
D. vitamins

22. A farming practice that is most effective for conserving the soil is

A. ploughing
B. monocropping
C. frequent weeding
D. terracing

23. An example of a compound fertilizer is

A. N.P.K 10-10-10
B. nitrate of potash
C. triple superphosphate
D. ammonium sulphate

24. A poultry farmer introduced Rhode Island red cocks into his breed of local hens. His aim was to improve his stock by a method known as

A. inbreeding
B. cross-breeding
C. selection
D. random mating

25. Loam is said to be the best type of soil for farming because

A. it is well aerated and can retain some water
B. its particles are easy to fill with least effort
C. it retains water leading to water logging
D. it has few air spaces

26. An example of a legume is

A. sorghum
B. maize
C. cowpea
D. yam

27. The instrument used to measure the diameter of a thin wire is

A. micrometre screw gauge
B. engineer’s callipers
C. meter rule
D. spherometer

28. A rubber tubing can be used to transfer petrol from a jerry can into the tank of a car by means of a

A. lift pump
B. force pump
C. siphon
D. block and tackle

29. Which of the following statements about an electric circuit in parallel is/are correct?

I. Current in the parallel wires are the same
II. Current in the parallel wires are different
III. Voltage across the parallel wires is the dame

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

30. A simple electrical circuit has a voltage supply of 12.0V. If the current flowing through the circuit is 4.0 A, determine the total resistance in the circuit.

A. 16.0 Ω
B. 8.0 Ω
C. 3.0 Ω
D. 48.0 Ω

31. When a body has its centre of gravity at the highest point, it is likely to be in

I. stable equilibrium
II. unstable equilibrium
III. neutral equilibrium

Which of the above statements is/are correct?

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

32. An image formed by a concave mirror is at the same position as the object and it is the same size as the object. The image and the object are

A. at the principal focus
B. at the centre of curvature
C. between the principal focus and the pole
D. between the principal focus and the centre of curvature

33. A metal block is raised to a height above the ground level. The type of energy possessed by the block at that height is

A. heat
B. kinetic
C. chemical
D. potential

34. The frequency of vibration in a string is directly proportional to the

A. reciprocal length of the string
B. thickness of the string
C. length of the string
D. square root of the mass of string

35. In a certain mechanical system, the energy input is 80 J. If the energy obtained from the system is 60 J, determine the efficiency of energy conversion.

A. 16.76%
B. 1.67%
C. 0.75%
D. 75.00%

36. Magnets are found in

I. electric generator
II. loudspeaker
III. microphone

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

37. Which of the following features is not associated with levers?

A. Load
B. Fulcrum
C. Effort
D. Pitch

38. Which of the following chemical processes is used in the extraction of gold?

A. Hydrolysis
B. Filtration
C. Electrolysis
D. Fractional distillation

39. One major use of duralumin is

A. production of permanent magnets
B. manufacture of cooking utensils
C. construction of bridges
D. construction of bodies of coaches and aircraft

40. Which of the following substances when in solution will turn litmus paper red?

A. Sodium carbonate
B. Sodium chloride
C. Epson salt
D. Vinegar

41. Some ripe fruits have fine smell because they contain

A. esters
B. bases
C. acids
D. lavender

42. The scale formed in a kettle after a prolonged use may be removed by adding

A. turpentine
B. hot water
C. ethanol
D. vinegar

43. Iron is electroplated in order to

A. increase its tensile strength
B. prevent it from rusting
C. enable it conduct electricity
D. make it ductile

44. Given that Avogadro Constant is 6.02 x 1023, determine the number of atoms in 0.001 mole of carbon.

A. 6.02 x 1026 atoms
B. 6.02 x 1020 atoms
C. 3.01 x 1023 atoms
D. 12.30 x 1020atoms

45. Which of the following compounds is a hydrocarbon?

B. C6H12O6
C. C2H6

46. The IUPAC name of the radical SO4-2 is

A. trioxosulphate (V) ion
B. tetraoxosulphate (V) ion
C. tetraoxosulphate (VI) ion
D. trioxosulphate (IV) ion

47. An example of a biological polymer is

A. polyethylene
B. dacron
C. cellulose
D. nylon

48. The laboratory apparatus illustrated below is a
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A. test tube holder
B. retort stand
C. pair of tongs
D. tripod stand

49. One disadvantage of using plastic products is the

A. toxic chemicals they contain
B. long period it takes form them to decompose
C. difficulty in recycling them
D. high cost

50. A bond formed between two atoms is considered as ionic when

A. the atoms transfer neutrons to each other
B. there is a transfer of one electron from one atom to another
C. the two atoms share a pair of electrons
D. no electrons transfer occurs between the atoms

[WpProQuiz 41]