BECE Past Questions & Answers – 2001 (SCIENCE)

April 2001

SCIENCE

SECTION A OBJECTIVE TEST
45 minutes

1. The main pollutant from domestic fires is
A. carbon monoxide B. sulphur dioxide C. water vapour
D. oxygen
E. ammonia

2. Plantain is propagated vegetatively by
A. corms
B. stem cuttings
C. suckers D. rhizomes E. tubers

3. Which of the following gases supports combustion?
A. carbon dioxide
B. carbon monoxide
C. hydrogen D. nitrogen E. Oxygen

4. The main function of petals in a flower is to
A. protect the ovary
B. produce seeds C. attract insects D. secrete nectar
E. produce sweet scent

5. The organ in the human body which is responsible for the removal of urea is the
A. heart
B. kidney
C. lung
D. liver
E. bladder

6. The sun and the planets form the
A. atmosphere B. constellation C. milky way
D. solar system
E. universe

7. The bilharzia worm can enter the human body through the
A. anus
B. ear
C. mouth D. nostrils E. skin

8. Brass is an alloy of copper and
A. aluminium
B. carbon
C. iron D. tin E. zinc

9. Which of the following diseases is contracted through infected wounds?
A. Chicken pox
B. Diphtheria
C. Mumps
D. Tetanus
E. Whooping cough

Use the figure below to answer Questions 10 and 11

A rigid bar is balanced horizontally at a point by placing a rock on the bar as shown

10. Which of the parts labeled represents the pivot?
A. P B. Q C. R D. X E. Y

11. The effort is represented by
A. P B. Q C. R D. X E. Y

12. Which of the following parts of the human body are sense organs?
I. Tongue
II. Hair III. Nose IV. Skin

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

13. The function of the cotyledon is to
A. produce the radicle
B. store food
C. protect the seed
D. produce the plumule
E. produce the fruit

14. Which of the following substances are components of a fertile soil?
A. Nitrogen and phosphorous
B. Phosphorous and sulphur
C. Phosphorous, calcium and sulphur
D. Calcium, sulphur, nitrogen and phosphorous
E. Nitrogen,calcium and phosphorous

15. Which of the following appliances transform(s) electrical energy to heat energy?
I. Swish oven
II. Hair dryer
III. Refrigerator motor

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

16. A ray of light makes an angle of 20° with the surface of a plane mirror. Determine the angle of reflection.
A. 20° B. 50° C. 70° D. 90° E. 120°

17. Seasonal changes are the result of the
A. rotation and tilting of the earth
B. revolution and tilting of the earth C. revolution and rotation of the earth D. revolution and tilting of the moon
E. revolution and rotation of the moon

18. Crystals of sugar were obtained when a hot solution of sugar was cooled to room temperature. What conclusion can be drawn from this observation?
A. Sugar does not dissolve in cold water
B. Sugar does not dissolve in hot water
C. Sugar dissolves more in hot water than in cold water
D. Sugar dissolves less in hot water than in cold water
E. Sugar dissolves more in cold water than in cold water

19. Which of the following processes about all living things is/ are true?
I. Reproduction

E. propagate vegetatively

21. The density of a substance is 2.5gcm-3. Calculate the volume of the substance if its mass is 25.0 g.
A. 0.1 cm3
B. 10.0 cm3
C. 22.5 cm3
D. 27.5 cm3
E. 62.5 cm3

22. The food substance that promotes good health is
A. carbohydrate
B. fat
C. protein D. vitamin E. water

23. The energy that causes the turbine of hydro-electric plant to rotate is
A. chemical energy B. potential energy C. electric energy D. kinetic energy
E. heat energy

24. Which of the following pairs of organs are parts of the central nervous system?
A. Spinal cord and the eyes
B. Brain and spinal cord
C. Brain and the ears D. Eyes and the ears E. Eye sand the brain

25. Plants manufacture their food using
I. carbon dioxide
II. oxygen
III. light
IV. chlorophyll

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

26. Which of the following crops improves soil fertility when cultivated continuously on the same piece of land?
A. Carrot

B. Cocoa C. Cassava D. Maize
E. Peas

27. It is necessary to keep household refuse in covered containers in order to prevent
A. the spread of tuberculosis
B. the decomposition of the refuse
C. the spread of measles
D. entry of flies
E. entry of bacteria

28. The fraction of the earth’s surface that faces the sun at any particular time is
A. 1/4
B. 1/3
C. 1/2
D. 2/3
E. 3/4

29. Which of the following is a micro-organism?
A. Bread mould
B. Bacteria
C. Leech D. Termite E. Tick

30. Which of the following statements about machines is/are correct?
I. Machines help us to do work more easily
II. A force applied at one point of the machine over comes a load at another point of the machine
III. All machines have engines

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

31. The female part of a flower is called the
A. filament
B. petal
C. pollen grain
D. sepal
E. style

32. Which of the following substances is a compound?

A. Hydrogen B. Nitrogen C. Oxygen
D. Sulphur
E. Water

33. A solution in which no more solute will dissolve at a particular temperature is said to be
A. concentrated
B. dilute
C. saturated
D. insoluble
E. unsaturated

34. The process of respiration could be represented by the following equation:
Glucose +oxygen→water +carbon dioxide + X
What does X represent?

A. Alcohol
B. Hydrogen
C. Heat
D. Mineral salts
E. Protein

35. When oil and water are shaken together they form a mixture called
A. a solution
B. an emulsion
C. a solute
D. a solvent
E. a suspension

36. The organism which lives in the human blood as a parasite is
A. louse
B. plasmodium C. roundworm D. tapeworm
E. tick

37. The fusion of an egg cell with sperm forms
A. an ovum
B. an embryo
C. a zygote D. an ovary E. a placenta

38. The instrument used to measure current in an electric circuit is the

A. ammeter
B. anemometer
C. barometer
D. thermometer
E. voltmeter

39. The atom of an element has 4 protons and 5 neutrons in its nucleus. How many shells are occupied in the atom?
A. 1
B. 2
C. 3
D. 4
E. 5

40. The gaps left between railway lines is to allow for
A. expansion
B. cooling
C. maintenance D. easy stopping E. gear changing

CLICK TO VIEW ANSWERS TO OBJECTIVES