BECE Past Questions & Answers – 1997 (SCIENCE)

August 1997

SCIENCE

SECTIONA OBJECTIVETEST
45minutes

1. Digestedfood is absorbed into the blood stream through the
A. duodenum
B. largeintestines
C. rectum
D. small intestines
E. stomach

2. Which ofthe followingis parasite?
A. Fruitfly B. Housefly C. Mosquito D. Tick
E. Tsetse fly

3. Soilaciditycan be reduced byadding
A. acid solution
B. ammoniumsulphate
C. fertilizer
D. lime
E. rotten leaves

4. Theplanet earth is located in agalaxyknownas
A. constellation
B. meteorites C. milkyway D. satellite
E. supernova

5. Themostproductivesoil in agricultureis
A. clayeysoil B. loamysoil C. sandysoil D. humus

E. silt

6. A chemical that can beused to test forthe presenceof protein in food substances is
A. Benedict’s solution B. Fehling’s solution C. Eosin solution
D. Iodine solution
E. Million’s reagent

7. Accordingto theprincipleof conservation of energy, ‘energycan
A. be created and destroyed
B. be created but not destroyed C. bedestroyed but notcreated D. be reduced but notincreased
E. neither becreated nor destroyed

8. Thepurpose of vaccination is to
A. replacepoisoned tissues
B. kill disease-producingorganisms in thebody
C. increasethe activityof whiteblood cells
D. inducethe production ofantibodies
E. curethe disease

9. Which ofthe following planets maybeseen as abright star in earlymornings orevenings?
A. Jupiter B. Mars C. Saturn
D. Uranus
E. Venus

10. Which ofthe following gives thecorrect order bywhich blood circulatescontinuouslythrough the circulatorysystem?
A. Heart → veins→ organs→ arteries → heart B. Heart → arteries →organs→ veins→ heart C. Heart → arteries →veins→ organs → heart
D. Heart →organs →arteries→veins→heart
E. Heart →veins→arteries→organs →heart
11. Theweight of an object isthe
A. forcewith which thesunpulls it
B. forcewith which themoon pulls it
C. forceof theobject whengravityis not actingon it
D. forcewith whichgravityacts on it
E. mass ofthe object

12. Theprocess of fusion ofsperm and ovum is known as
A. fertilization B. menstruation C. pollination
D. reproduction
E. lactation

13. Howmuch work is donewhen akerosenetin is pushedwith a forceof 20N throughadistanceof 2m?
A. 0.01 J B. 0.10 J C. 10.0 J D. 20.0 J E. 40.0 J

14. Which ofthe followingformpart ofthe alimentarycanal?
I. Colon II. Gullet III. Liver
IV. Pancreas

A. I andIIonly B. I andIV only C. IIandIIIonly D. IIandIVonly
E. I,IIandIIIonly

15. An exampleof asimple lever whoseeffort is at its centreis
A. abottle opener
B. apair ofscissors C. apair of forceps D. the beam balance E. wheelbarrow

16. Which ofthe followingleaves aresensitiveto touch?
A. Cassavaleaves B. Mimosa leaves C. Orangeleaves D. Palmleaves
E. Tomato leaves

17. Which ofthe following properties is / are common to both liquids and gases?
A. Fixed shape
B. Fixed shape and fixed volume
C. Fixed size
D. No definite shape

E. No definite shapeand nodefinite volume

18. Which ofthe following plants has suckers?
A. Onion B. Orange C. Plantain
D. Sweet Potato
E. Yam

19. Which ofthe following activities ofman causesboth air and water pollution?
A. Afforestation
B. Construction ofhouses C. Construction of roads D. Deforestation
E. Industrialization

20. Thenumberof hydrogenatoms present intwo molecules ofwater is
A. 1
B. 2
C. 3
D. 4
E. 5

21. Decayis an important biological process becauseitbrings about the
A. formation of nutrients in livingorganisms B. manufactureof cells of livingorganisms C. production ofoxygen byplants
D. releaseof nutrients fromdead organisms
E. releaseof wastesubstances from bacteria

22. Thedarkest part of ashadow formed during an eclipse is called
A. annulareclipse
B. lunar eclipse
C. penumbra
D. solar eclipse
E. umbra

23. Which ofthe following particles can be found inthe nucleus of anatom?
A. Electrons and protons
B. Electrons and shells
C. Neutrons and electrons D. Neutrons and protons E. Shells andneutrons

24. Which ofthe following substances isusedto purifywaterfortown supply?

A. Alcohol
B. Carbondioxide
C. Chlorine D. Nitrogen E. Sulphur

25. Thesheddingof leaves byplants duringthe dryseason protects them against
A. bush fire
B. cold weather
C. plant-eatinganimals
D. heat loss
E. waterloss

26. Thevolumeof water ina containerrises whenapieceof stoneis put into the container. The changein the volumeof wateris equalto the
A. mass ofthe container
B. mass ofthe stone
C. densityof thestone D. densityof thewater E. volumeof thestone

27. Which ofthe following carrydeoxygenated blood in thebody?
A. Arteries
B. Red blood cells
C. Valves
D. Veins
E. Whiteblood cells

28. Which ofthe followingforces willcause an object to move in a circularpath?
A. Centripetal force
B. Gravitational force
C. Inertial force D. Reaction force E. Tensional force

29. Thepairedfins in fishes areusedfor
A. protection and diving B. divingand balancing C. balancingandcontrol D. steeringand diving
E. balancingand steering

30. Inwhich of thefollowingis urine produced?
A. Bladder
B. Kidney

C. Liver
D. Penis and vagina
E. uterus

31. Photosynthesisoccurs onlyingreen plants becausethey
A. absorb water
B. arefound in thetropics
C. areveryactive
D. contain chlorophyll
E. takein carbondioxide

32. The food weeat undergoes slow oxidation in ourbodies to produceheat.In this process
A. chemical energyis converted to heat energy B. electrical energyisconverted to heat energy C. kinetic energyis converted to heat energy
D. mechanical energyis converted to heatenergy
E. potential energyis converted to heat energy

33. Which ofthe following planets is nearest to theearth?
A. Jupiter B. Mercury C. Pluto
D. Saturn
E. Venus

34. Which ofthe following organs help to improvesoilfertility?
A. Earthworms
B. Guineaworms
C. Hookworms D. Roundworms E. Threadworms

35. A stone released from acatapult was ableto killabird because
A. the stone had alotof energy
B. the stone was sharp
C. therewas tension in thestone
D. the rubber ofthe catapultwas strong
E. the stone was big

36. Which ofthe followingis a plant parasite?
A. Capsid
B. Caterpillar
C. Dodder
D. Louse
E. Nematode

37. Bythe end of digestion, lean meat is turned into
A. amino acids B. fattyacids C. glycerol
D. glucose
E. sugar

38. Inwhich of thefollowingelectrical appliances iselectrical energymainlyconverted to heat energy?
A. Cooker
B. Fan
C. Refrigerator D. Taperecorder E. Television set

39. The energyforlighting atorchlight bulb comes from the
A. bulb
B. cell
C. filament
D. glass
E. switch

40. Thelargest component of sweat is
A. glucose
B. oil C. salt D. urea
E. water

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