BECE 2011 Integrated Science Past Questions and Answers

Paper 1: Objectives

1. An example of a noble gas is
   1. A. chlorine
   2. B. neon
   3. C. nitrogen
   4. D. oxygen
   Answer: B
2. The structure that stores sperms temporarily in the male reproductive system of humans is
   1. A. epididymis
   2. B. scrotal disc
   3. C. sperm duct
   4. D. testes
   Answer: A
3. Which of the following properties of alcohol as a thermometric liquid is correct?
   1. A. It is opaque
   2. B. It does not wet glass
   3. C. It has a very low freezing point
   4. D. It has a high freezing point
   Answer: C
4. In which of the following vegetation of Ghana does millet and sorghum grow well?
   1. A. Costal savannah
   2. B. Forest zone
   3. C. Guinea savannah
   4. D. Transition zone
   Answer: C
5. Which of the following methods is/are used for preserving fish?
   
   I. Canning
   
   II. Frying
   
   III. Smoking
   1. A. I only
   2. B. I and II only
   3. C. II and III only
   4. D. I, II and III
   Answer: D
6. Which of the following practices in the home can prevent disease infection?
   1. A. Covering one's food
   2. B. Drinking unclean water
   3. C. Keeping one's surrounding untidy
   4. D. Sharing towels and sponges
   Answer: A
7. An example of a semimetal is
   1. A. calcium
   2. B. lithium
   3. C. silicon
   4. D. sodium
   Answer: C
8. Which kind of energy transformation takes place in an electric motor?
   1. A. Chemical energy to electrical energy
   2. B. Chemical energy to mechanical energy
   3. C. Electrical energy to light energy
   4. D. Electrical energy to mechanical energy
   Answer: D
9. Landrace is a breed of
   1. A. cattle
   2. B. goats
   3. C. pigs
   4. D. sheep
   Answer: C
10. In flowering plants, the stamen is made up of
    1. A. anther and stigma
    2. B. anther and filament
    3. C. stigma and filament
    4. D. stigma and style
    Answer: B

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11. Which of the following statements about a transistor is correct?
    1. A. It can be used to amplify current
    2. B. It is similar to three diodes
    3. C. It consists of two leads only
    4. D. It has three junctions
12. An atom has 6 protons and 7 neutrons in its nucleus. What is the mass number?
    1. A. 1
    2. B. 6
    3. C. 7
    4. D. 13
13. A record of daily activities on a farm is termed
    1. A. labour record
    2. B. inventory record
    3. C. farm diary
    4. D. production record
14. Which of the following devices work(s) on the principle of transmission pressure in fluids?
    
    I. Water pumps
    
    II. Syringes
    
    III. Bicycle brakes
    1. A. I only
    2. B. I and II only
    3. C. II and III only
    4. D. I, II and III
15. Which of the following crops is not correctly matched with its group?
    1. A. Cowpea - cereal crop
    2. B. Cocoa - beverage crop
    3. C. Coconut - oil crop
    4. D. Cocoyam - tuber crop
16. Which of the following substances is a salt?
    1. A. H2SO4
    2. B. NaOH
    3. C. HCl
    4. D. CaCl2
17. In which part of the digestive system of a fowl does grinding of feed take place?
    1. A. Crop
    2. B. Gizzard
    3. C. Oesophagus
    4. D. Proventriculus
18. The parts of a bony fish that are used to control the level at which the fish swims are known as
    1. A. dorsal and caudal fins
    2. B. caudal and pectoral fins
    3. C. pectoral and pelvic fins
    4. D. dorsal and pectoral fins
19. Millon's reagent is used to test for
    1. A. carbohydrates
    2. B. fats
    3. C. proteins
    4. D. vitamins
20. In an n-p-n transistor, the n-type collector is connected to the positive terminal of the battery thus making the
    1. A. base-collector junction reverse biased
    2. B. base-collector junction forward biased
    3. C. base-emitter junction reverse biased
    4. D. base-emitter junction forward biased
21. Which type of vegetation favours both wet and hot environmental conditions?
    1. A. Strand and mangrove
    2. B. Coastal savannah
    3. C. Guinea savannah
    4. D. Tropical forest
22. During drought, some plants dry out because of high
    
    I. atmospheric temperature
    
    II. humidity
    
    III. rate of evaporation
    1. A. III only
    2. B. I and II only
    3. C. I and III only
    4. D. I, II and III
23. Soil erosion on sloppy farmlands is best controlled by
    1. A. Cover cropping
    2. B. Mulching
    3. C. Strip cropping
    4. D. Terracing
24. A viable seed is one that
    1. A. Germinates under suitable conditions
    2. B. Contains oil
    3. C. Develops from fertilized ovary
    4. D. Has a pericarp
25. Which of the following pairs of structures form part of the female reproductive system of humans?
    1. A. Urethra and uterus
    2. B. Cervix and uterus
    3. C. Ureter and uterus
    4. D. Cervix and ureter
26. Which of the following chemical symbols is that of a metal?
    1. A. Ca
    2. B. Ne
    3. C. P
    4. D. S
27. All the living and non-living things that surround an organism constitute its
    1. A. Community
    2. B. Ecosystem
    3. C. Environment
    4. D. Habitat
28. Which of the following crops should be planted after cassava in crop rotation?
    1. A. Cocoyam
    2. B. Cowpea
    3. C. Onion
    4. D. Yam
29. Endoparasites in farm animals can be controlled by
    1. A. Drenching
    2. B. Dipping
    3. C. Dusting
    4. D. Spraying
30. Which of the following devices requires the use of transistors in its operation?
    1. A. Computer
    2. B. Electric heater
    3. C. Microphone
    4. D. Wall clock
31. Feel Method is used to determine soil
    1. A. Air
    2. B. Colour
    3. C. Structure
    4. D. Texture
32. Which of the following modes of heat transfer is the thermos flask designed to minimize?
    
    I. Conduction
    
    II. Convection
    
    III. Radiation
    1. A. I and II only
    2. B. I and III only
    3. C. II and III only
    4. D. I, II and III
33. An atom of an element is represented as ²⁵₁₂X. What is the respective number of neutrons and protons in the atom?
    1. A. 12 and 13
    2. B. 12 and 25
    3. C. 13 and 12
    4. D. 25 and 12
34. The anemometer is an instrument used in determining
    1. A. Amount of rainfall
    2. B. Speed of wind
    3. C. Relative humidity
    4. D. Intensity of light
35. Which of the following subjects is/are considered as applied science?
    
    I. Biology
    
    II. Medicine
    
    III. Psychology
    1. A. I only
    2. B. I and II only
    3. C. I and III only
    4. D. II and III
36. Chinchilla is a breed of
    1. A. Goats
    2. B. Pigs
    3. C. Rabbits
    4. D. Sheep
37. Which of the following characters is not acquired through heredity?
    1. A. Language spoken
    2. B. Shape of nose
    3. C. Colour of eyes
    4. D. Temperament
38. The food nutrient which ensures good health in farm animals is
    1. A. Carbohydrates
    2. B. Minerals
    3. C. Proteins
    4. D. Vitamins
39. The use of resistant breeds of farm animals to control pests is a
    1. A. Biological method
    2. B. Chemical method
    3. C. Cultural method
    4. D. Physical method
40. Which of the following arrangements show the correct order of increasing complexity of structures in living organisms.
    1. A. Cells → organs → tissues → systems
    2. B. Cells → tissues → organs → systems
    3. C. Cells → systems → tissues → organs
    4. D. Cells → tissues → systems → organs

Paper 2: Theory

1. (a) In an experiment to demonstrate a property of light, three cardboards, A, B, and C with holes in their centers are arranged in a straight line between a lighted bulb and an observer.
   
   
   
   (i) What would the observer see from the position shown?
   
   (ii) What would the observer see when cardboard B is slightly displaced from the line?
   
   (iii) Explain the observation made in (a)(ii) above.
   
   (iv) What would be observed when the cardboard B is brought back to its original position?
   
   (v) What property of light is being demonstrated in this experiment?
   
   (vi) Mention:
   
   α) two natural occurrences explained by the property of light demonstrated.
   
   β) one device that works on the property of light demonstrated.
   
   (b) The diagrams below show hazard symbols.
   
   
   
   (i) What does each symbol A, B, C, and D represent?
   
   (ii) Name one substance associated with each of the symbols A, B, and C.
   
   (iii) Name one place where symbol D can be found.
   
   (iv) State two advantages of hazard symbols.
   
   (c) The diagrams below show different types of teeth in humans.
   
   
   
   (i) Identify each type of tooth labeled A, B, and C.
   
   (ii) Describe the shape of each of the teeth labeled A, B, and C.
   
   (iii) State one function of each of the teeth labeled A, B, and C.
   
   (iv) Name the parts of the teeth labeled I and II.
   
   (d) The diagrams below show some farm tools.
   
   
   
   (i) Identify each of the tools labeled A, B, C, D, and E.
   
   (ii) Mention one use of each tool labeled A, B, C, D, and E.
2. (a) (i) What are ruminants?
   
   (ii) Give two examples of ruminants.
   
   (b) (i) What is force?
   
   (ii) State two effects of force on a body.
   
   (c) (i) Mention two ways to maintain the carbon cycle.
   
   (ii) State one environmental effect of disrupting the carbon cycle.
   
   (d) (i) Name the three sub-atomic particles.
   
   (ii) State the relative charge on each of the three sub-atomic particles.
   
   (iii) Name the particle formed when an atom loses an electron.
3. (a) (i) What is a mixture?
   
   (ii) Why are some mixtures thoroughly stirred before use?
   
   (b) (i) What is reflection of light?
   
   (ii) State two characteristics of images formed by plane mirrors.
   
   (c) (i) What is a fertilizer?
   
   (ii) Give one example of an inorganic fertilizer.
   
   (d) (i) What is indiscriminate sex?
   
   (ii) State two dangers of indiscriminate sex on humans.
4. (a) (i) What is a simple machine?
   
   (ii) Give two examples of a simple machine.
   
   (b) (i) What is rusting?
   
   (ii) State two effects of rusting.
   
   (c) (i) What are food nutrients?
   
   (ii) Classify the following items as carbohydrate, fats and oil, or protein: Beans, palm fruits, meat, margarine, bread, maize.
   
   (d) (i) State two effects of malnutrition in farm animals.
   
   (ii) Mention one viral disease of farm animals.
5. (a) (i) What is soil erosion?
   
   (ii) Name two methods of controlling soil erosion.
   
   (b) Explain the following ecological terms:
   
   α) Adaptation;
   
   β) Endangered species.
   
   (c) (i) Give one example of hard water.
   
   (ii) Why is it advisable to drink hard water?
   
   (d) (i) What is a magnetic field?
   
   (ii) State two methods of making magnets.
6. (a) (i) Define:
   
   α) Solvent;
   
   β) Solute.
   
   (ii) Name one common solvent used in the home.
   
   (b) Explain the following terms in animal production:
   
   (i) Ration;
   
   (ii) Dehorning.
   
   (c) (i) What is an element?
   
   (ii) Write down the symbols for:
   
   α) Potassium;
   
   β) Sulphur.
   
   (d) Explain each of the following terms:
   
   (i) Mixed farming;
   
   (ii) Mixed cropping.

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