Integrated Science BECE 1996

August 1996
45 minutes

1. Which of the following is a sexually transmitted disease?
A. Cholera
B. Rickets
C. Tuberculosis
D. Syphilis
E. Measles

2. The excretory organs in man are the
A. Kidneys and urethra
B. Kidneys and the skin
C. Kidneys, lungs and the skin
D. Kidneys and the lungs
E. Kidneys, bladder and urethra

3. Which of the following farming practices is the best way of maintaining soil fertility?
A. Crop rotation
B. Seasonal cropping
C. Constant ploughing
D. Bush burning
E. Mono cropping

4. Which of the following is not considered as a reflex action?
A. Blinking of the eye
B. Moving the hand from a hot object
C. Jerking of the knee
D. Talking while eating
E. Coughing to remove an object from the throat

5. A boy exerts a force of 40.0 N to lift a load into a vehicle. If the work done is 80.0 J, calculate the distance through which the load is lifted.
A. 0.5 m
B. 2.0 m
C. 40.0 m
D. 120.0 m
E. 3200.0 m

6. Which of the following arrangements is the correct order of increasing complexity of the structure?
A. Cells → systems → tissues → organs
B. Cells → tissues → systems → organs
C. Cells → organs → tissues → systems
D. Cells → systems → organs → tissues
E. Cells → tissues → organs → systems

7. The law of conservation of energy states that energy can
A. be created but not transformed
B. be destroyed but not transformed
C. neither be created nor transformed
D. not be created but can be transformed
E. neither be created nor destroyed, but only be transformed

8. On the moon, there are large holes called
A. valleys
B. gullies
C. spurs
D. craters
E. pits

9. The darkest part of a shadow formed during an eclipse is called
A. Lunar eclipse
B. Annular eclipse
C. Penumbra
D. Umbra
E. Solar eclipse

10. The main waste products formed in plants are
A. water, carbon dioxide and urea
B. water, carbon dioxide and oxygen
C. water, carbon dioxide and mineral salts
D. water, ammonium compounds and oxygen
E. water, ammonium compounds and carbon dioxide

11. A mixture of sand and water can be separated through
A. filtration
B. ionization
C. condensation
D. sedimentation
E. evaporation

12. Which of the following chemical equations is the correct representation of the preparation of carbon dioxide?
A. CaCO3 + 2HCl → CaO + Cl2 + H2 + CO2
B. CaCO3 + 2HCl → CaCl2 + H2CO3
C. CaCO3 + 2HCl → CaO + Cl2 + H2O + CO2
D. CaCO3 + 2HCl → CaCl2 + H2 + CO2
E. CaCO3 + 2HCl → CaCl2 + H2O + CO2

13. Which of the following is not an example of matter?
A. Hydrogen
B. Oxygen
C. Light
D. Water
E. Charcoal

14. A stone with mass 80.0 g was put into a measuring cylinder containing water. If the water level rises by 20.0 cm, calculate the density of the stone.
A. 0.25 gcm-3
B. 1.20 gcm-3
C. 1.80 gcm-3
D. 3.30 gcm-3
E. 4.00 gcm-3

15. The sun is made up of burning
A. gases
B. rocks
C. gold
D. coal
E. sulphur

16. The force overcome by a machine is known as the
A. effort
B. load
C. pivot
D. lever
E. work

17. Calculate the work done when a weight of 20.0 N is lifted vertically through a distance of 10.0 cm
A. 2000.0 J
B. 200.0 J
C. 20.0 J
D. 2.0 J
E. 0.2 J

18. Heat travels through a vacuum by a process known as
A. conduction
B. convection
C. radiation
D. vibration
E. transmission

19. Soil aeration can be improved by
A. Adding mineral to the soil
B. Application of fertilizer to the soil
C. Weathering
D. Activities of earthworms
E. Manuring

20. Which of the following does not play any part in digestion?
A. Mouth
B. duodenum
C. rectum
D. pancreas
E. Stomach

21. Most machines waste energy because of
A. old age
B. force
C. friction
D. load
E. too much effort

22. All the following add nitrates to the soil except
A. Okro
B. Broad beans
C. French beans
D. Groundnuts
E. Pigeon pea

23. The blood in mammals is composed of
A. a red liquid
B. red blood cells and white blood cells
C. liquid plasma and solid corpuscles
D. blood protein and glycerol
E. sugar and mineral salts only

24. In a machine, 200.0 J of energy was lost as heat. If the energy input is 600.0 J, what is the efficiency of the machine?
A. 67%
B. 40%
C. 33%
D. 30%
E. 12%

25. The type of energy stored in fuels is called
A. light energy
B. solar energy
C. electrical energy
D. kinetic energy
E. chemical energy

26. An object at rest may have
A. velocity
B. momentum
C. kinetic energy
D. potential energy
E. acceleration

27. Birds are able to fly because they have
A. hollow bones
B. web legs
C. tail feathers
D. flat chest
E. wide eyes

28. The chief source of energy in the world today is
A. coal
B. crude oil
C. natural gas
D. uranium
E. water

29. Which of the following is used by plants to make its food?
A. carbon monoxide
B. oxygen
C. carbon dioxide
D. hydrogen
E. nitrogen

30. Sleeping sickness is spread by
A. blackfly
B. firefly
C. Mosquito
D. Housefly
E. Tsetse fly

31. An example of a crop that reduces the fertility of the soil rapidly is
A. Beans
B. Legumes
C. Groundnuts
D. Cassava
E. Plantain

32. The blackpod disease which attacks cocoa pods is caused by
A. virus
B. bacterium
C. plasmodium
D. fungus
E. protozoa

33. The organ which enables a fish to breathe in water is the
A. Nostril
B. Pectoral fin
C. Dorsal fin
D. Gall bladder
E. Gill

34. Which of the following part of a flower grows into the seed?
A. Stamen
B. Ovule
C. Ovary
D. Stigma
E. Sepal

35. When the palms of the hand are rubbed together, kinetic energy is changed to
A. thermal energy
B. potential energy
C. solar energy
D. elastic energy
E. chemical energy

36. Trees in desert regions have thick barks which enables them to
A. prevent heat loss
B. absorb more light
C. prevent water loss
D. absorb more water
E. absorb more oxygen

37. Which of the following is true about loamy soil?
I. Is formed from a mixture of sand and clay
II. It is good for plant cultivation
III. Its water retention is poor

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

38. In which part of the alimentary canal is food finally changed into a form that can be absorbed into the bloodstream?
A. small intestines
B. oesophagus
C. mouth
D. stomach
E. large intestines

39. In which units are the vast distances between stars in space measured?
A. Knots
B. Kilometres
C. Furlongs
D. Miles
E. Light years

40. Which of the following happens during fertilization in humans?
A. A membrane forms around the egg
B. only one sperm fuses with the egg
C. the egg divides into two
D. the egg moves down into the egg tube
E. the egg moves down into the womb