BECE Past Questions & Answers – 1991 (SCIENCE)

August 1991

SCIENCE

SECTIONA OBJECTIVETEST
45 minutes

1. Thedigestion of carbohydrates starts in the
A. mouth
B. throat
C. stomach
D. duodenum
E. ileum

2. Photosynthesisin plants requires chlorophyll, sunlight, waterand
A. oxygen
B. carbondioxide
C. steam
D. hydrogen
E. nitrogen

3. Which ofthe following objects is a goodconductorof heat?
A. Wood B. Rubber C. Copper D. Plastic E. Wool

4. What is the work donewhen a forceof 2.5N moves throughadistanceof 4 m?
A. 0.6 J B. 1.5 J C. 1.6 J D. 6.5 J E. 10.0 J

5. Theperson who studiesthe weather is
A. apilot
B. aphysician C. an astronaut D. an astrologer E. meteorologist

6. A child suffering fromKwashiorkorlacks
A. protein
B. fats and oils
C. vitamins
D. mineral salts
E. carbohydrates

7. Which ofthe following substances can dissolve almost all solutes?
A. Kerosene B. Palmoil C. Water
D. Turpentine
E. Petrol

8. All of the followingmethods areusedto preservefood in our homes except
A. smoking
B. salting C. boiling D. canning E. drying

9. The chemical symbolfor Potassium is
A. Fe B. K C. P D. Pb E. Zn

10. Thepart ofthe bananaplant used in reproductionis called
A. sucker B. rhizome C. stem
D. tuber
E. bulb

11. Theprocess bywhich kerosene rises up thewick in alantern is
A. evaporation B. conduction C. diffusion
D. capillarity
E. convection

12. Which ofthe following animals can liveboth in water and on land?
A. Mouse

B. Rat
C. Frog
D. Grasscutter
E. Mud fish

13. A bar magnetattracts allthe followingobjects except
A. pins
B. pair ofscissors
C. nails
D. razorblade
E. glass

14. When an object moves from rough surfaceonto asmooth one with the same energy, its speed
A. increases
B. decreases
C. remains thesame
D. becomes zero
E. cannot be determined

15. Howmanystates of matterdo wehave?
A. 2
B. 3
C. 4
D. 5
E. 6

16. All of the following animals layeggsexcept
A. fish
B. lizard C. rabbit D. toad
E. turkey

17. Which oftheseis not a sense organ?
A. Eye B. Ear C. Nose D. Skin
E. Heart

18. Which ofthe following processes is used to separate insoluble solids from liquids?
A. Distillation B. Sublimation C. Filtration
D. Evaporation

E. Sedimentation

19. An organismlivingon anotherorganismand causingharm to it is referredto as a
A. host
B. parasite C. producer D. consumer E. vector

20. What sickness areyou likelyto be suffering fromwhenyou haveblood inyoururine?
A. Typhoid B. Syphilis C. Cholera D. Bilharzia E. Ulcer

21. Which oftheseis a vegetable crop?
A. Pineapple
B. Potato
C. Cabbage D. Cassava E. Mango

22. Insects canwalk on thesurfaceof waterbecauseof
A. diffusion B. capillarity C. viscosity D. friction
E. surfacetension

23. When asubstanceis madeup ofthe same kind ofatoms itis called
A. amixture
B. a compound C. an element D. asolution
E. asolvent

24. What do human beingsobtain from food to enable them work?
A. Blood
B. Energy
C. Vitamins D. Proteins E. Minerals

25. Which oftheseinstruments is used in measuring humidity?

A. Hygrometer B. Thermometer C. Photometer
D. Potometer
E. Anemometer

26. Thepart ofthe plant which is found in the soil is the
A. flower B. stem C. leaf
D. root
E. fruit

27. When salt is put into soups, it
A. melts
B. sublimes C. dissolves D. evaporates E. expands

28. The complete development of ahuman babyin thewomb normallytakes
A. fivemonths
B. sixmonths
C. seven months
D. nine months
E. eleven months

29. Thewashingawayof thetop soilbyrunningwater is called
A. erosion
B. rotation
C. plantation D. weathering E. irrigation

30. All of the following are solids except
A. aluminium
B. lead
C. silver
D. potassium
E. mercury

31. Theprocess bywhich livingthings increasein numberis referred to as
A. growth
B. development
C. reproduction

D. multiplication
E. addition

32. Which ofthe following soiltypes can hold theleast amount of water?
A. Loam B. Clay C. Silt
D. Sand
E. Sandyloam

33. When apieceofcandle is heated, it changes from
A. liquid to gas
B. liquid to flame C. solid to flame D. solid to liquid E. solid to gas

34. Which ofthe following metals is used formakingroofingsheets?
A. Zinc
B. Silver
C. Mercury
D. Tin
E. Aluminium

35. What is the name ofthefinal product of protein digestion?
A. Glucose B. Fattyacid C. Amino acid D. Glycerol
E. Sucrose

36. Thelion is atypical exampleof
A. apet
B. a carnivore C. an omnivore D. aherbivore E. aparasite

37. A uniform mixtureof two or moremetals is called
A. asolute
B. a colloid
C. a compound D. asuspension E. an alloy

38. Which ofthe following activities illustrates distillation?
A. Preparation ofsoup
B. Preparation ofakpeteshie
C. Tappingof palmwine D. Preparation ofstarch E. Freezingof water

39. Thehatchingof eggs into chicken depends on constant supplyof
A. water
B. feed
C. pressure
D. heat
E. light

40. A fertilized ovule results in the formation of
A. an ovary
B. astyle C. apistil D. astigma
E. an embryo

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