BECE Past Questions & Answers – 2000 (SCIENCE)

August2000

SCIENCE

SECTION A OBJECTIVE TEST
45minutes

1. Which of the following organs is used by the fish for movement?
A. eye B. fin C. gill D. tail
E. mouth

2. A group of stars found in the universe is called
A. galaxy
B. meteor
C. meteorite
D. planet
E. solar system

3. The basic unit of matter is the
A. atom
B. compound
C. element D. electron E. ion

4. Which of the following process is a physical change?
A. Rusting of iron
B. Burning of paper
C. Melting of ice
D. Fermentation of palm wine
E. Boiling of an egg

5. The organ that removes metabolic wastes from the human body is
A. anus B. heart C. kidney

D. rectum
E. spleen

6. The food chain that occurs in nature is
A. green plants → lizards → insects→ snakes
B. grasshopper→green plants→ lizards → hawks
C. green plants → snakes→hawks → man
D. green plants →grasshopper → lizards → snakes
E. mice→ lizards →hawks → snakes
7. The device that uses an electromagnet in its operation is the
A. electric bell B. electric iron C. radio
D. refrigerator
E. sewing machine

8. Which of the following statements about mammals is true?
A. They have hairs
B. They lay eggs
C. They have feathers
D. They have beaks
E. They are cold-blooded

9. The parasite that is found on dogs is
A. capsid
B. guinea worm C. plasmodium D. tapeworm
E. tick

10. The substancethat sublimes when heated is
A. baking powder
B. camphor
C. common salt
D. sugar
E. sulphur

11. In plants, when the male gamete fuses with the egg, the first structure that is formed is the
A. embryo
B. testa C. fruit D. seed
E. zygote

12. Clayey soil holds more water than any other type of soil because it has
A. large particle size
B. larger air spaces
C. irregular particle size
D. greater attraction for water
E. reduced air spaces

13. Disposal of urine and faeces into a river used for domesticpurposes, maycause theoutbreak of
A. bilharzia
B. malaria
C. river blindness
D. tetanus
E. tuberculosis

14. The temperature of 20°Con the Kelvin scale is
A. 253 K B. 263 K C. 273 K D. 283 K E. 293 K

15. The heavenly body that produces and emits its own light is
A. Mars
B. meteorite C. the moon D. the sun
E. Venus

16. Desert plants shed their leaves to reduce the rate of
A. absorption B. diffusion C. osmosis
D. respiration
E. transpiration

17. Which of the following materials transforms electrical energy into light energy?
A. Electrical bell B. Filament bulb C. Electric guitar D. Lantern
E. Radio

18. The name of the smallest blood vessel in humans is
A. artery
B. arteriole

C. capillary
D. vein
E. venule

19. Which of the following activities is a reflex action?
A. Eating
B. Fighting C. Learning D. Sneezing E. Writing

20. The method of separation used in the treatment of water at the water works is
A. decantation B. distillation C. evaporation
D. magnetization
E. precipitation

21. The gas produced when dilute hydrochlorica cid is added to calcium carbonate is
A. ammonia
B. carbon dioxide
C. chlorine D. hydrogen E. oxygen

22. Which of the following environmental factors increases sweating in humans?
A. Low temperature
B. Low pressure
C. High pressure
D. High temperature
E. High humidity

23. Which of the following crops is propagated vegetatively?
A. Cassava B. Coconut C. Mango D. Okro
E. Tomato

24. The type of energy stored in food is referred to as
A. chemical energy B. electrical energy C. heat energy
D. kinetic energy
E. light energy

25. The end product of protein digestion is
A. amino acids
B. glucose
C. maltose
D. poly-peptide
E. sucrose

26. The attracting power of magnets is greatest at the
A. centre B. edges C. poles D. sides
E. surface

27. The substances which help in the digestion of food materials are called
A. enzymes B. hormones C. lymph
D. mucus
E. plasma

28. The transfer of heat through a solid medium is by
I. conduction II. convection III. radiation

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

29. Casual and loose sex life can result in the spread of
A. AIDS B. cholera
C. poliomyelitis
D. malaria
E. tuberculosis

30. Which of the following conditions will cause the same quantity of sugar to dissolve faster in a given volume of water?
A. Stirring the solution B. Grinding the sugar C. Heating the solution

D. Dissolving in a bigger container
E. Cooling the solution

31. The raw material for photosynthesis is
A. carbon dioxide
B. chlorophyll C. mineral salts D. oxygen
E. sunlight

32. Which of the following heavenly bodies is at the centre of theplanetarysystem?
A. Earth
B. Mercury
C. Pluto
D. Sun
E. Venus

33. Legumes are generally included in crop rotation because they
A. are easy to uproot in preparation for the next planting season
B. are able to fix atmospheric nitrogen in the soil
C. have short lifespan
D. are good cover crops
E. have high market value

34. The insect which transmits the plasmodium parasite is called
A. butterfly B. cockroach C. housefly D. mosquito E. tsetse fly

35. The property of water that causes mosquito larvae to float on it is
A. density
B. viscosity
C. surface tension
D. volume
E. capillarity

36. Which of the following practices is a bad habit?
A. Keeping one’s surroundings tidy
B. Drinking clean water
C. Covering one’s food
D. Using a brother’s towel and comb
E. Washing of hands before eating

37. Addition of more solvent to a solution makes the solution more
A. dense
B. dilute
C. concentrated
D. saturated
E. supersaturated

38. An atom has 4 protons and 5 neutrons in its nucleus. How many positively charged particles are in the atom?
A. 1
B. 2
C. 3
D. 4
E. 5

39. Which of the following statements about all living things is/ aretrue ?
I. They respire
II. They manufacture their own food
III. They grow

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

40. Spectacle with converging lenses are used by people suffering from
A. cataract
B. glaucoma
C. headache
D. long-sightedness
E. short-sightedness




CLICK TO VIEW ANSWERS TO OBJECTIVES
August2000

SCIENCE Section A

SOLUTIONS

OBJECTIVE TEST

1. B. fin

2.
A.
galaxy

3.
A.
atom

4.
C.
Melting of ice

5.
C.
kidney

6.
D. green plants→grasshopper → lizards → snakes

7.
A.
electric bell

8.
A.
They have hairs

9.
E.
tick

10.
B.
camphor

11.
E.
zygote

12.
E.
reduced air spaces

13.
A.
bilharzia

14.
E.
293 K

15.
D.
the sun

16.
E.
transpiration

17.
B.
Filament bulb

18.
C.
capillary

19.
D.
Sneezing

20. A. decantation

21.
B.
carbon dioxide

22.
D.
High temperature

23.
A.
Cassava

24.
A.
chemical energy

25.
A.
amino acids

26.
C.
poles

27.
A.
enzymes

28.
A.
I only

29.
A.
AIDS

30.
C.
Heating the solution

31.
A.
carbon dioxide

32.
D.
Sun

33.
B.
are able to fix atmospheric nitrogen in the soil

34.
D.
mosquito

35.
C.
surface tension

36.
D.
Using a brother’s towel and comb

37.
B.
dilute

38.
D.
4

39.
D.
I and III only

40.
D.
long-sightedness