31. The blood vessel which carries digested food from the small intestine to the liver is the
A. hepatic artery
B. hepatic portal vein
C. posterior vena cava
D. renal vein
B
32. The following measuring instruments are length-measuring devices except
A. metre rule
B. speedometer
C. spherometer
D. vernier calliper
B
33. Which of the following metals is obtained from haematite?
A. aluminum
B. copper
C. iron
D. zinc
C
34. A rectangular block weighs 4000 N. Its mass is
A. 4 kg
B. 40 kg
C. 400 kg
D. 4000 kg
C
35. Which of the following diseases has the greatest adverse effects on productivity in Ghana?
A. Malaria
B. Poliomyelitis
C. Smallpox
D. Yellow fever
A
36. The reaction: KAlSi3O8 + H20 → HAlSi3O8 + KOH, which occurs during the chemical weathering of rocks is referred to as
A. carbonation
B. hydration
C. hydrolysis
D. oxidation
C
37. Which of the following human characteristics is inherited?
A. baldness
B. language
C. scar
D. skills
A
38. The speed of a body increased from 20.0 ms−1 to 35.0 ms−1 in 5.0 seconds. Calculate the average acceleration of the body.
A. 3.0 ms−2
B. 11.0 ms−2
C. 15.0 ms−2
D. 75.0 ms−2
A
39. Insoluble salts are prepared by the
A. crystallization method
B. dissolution method
C. precipitation method
D. titration method
C
40. Which of the following cell organelles is involved in the secretion and packaging of complex carbohydrates and proteins?
A. Endoplasmic reticulum
B. Golgi body
C. Lysosome
D. Ribosome
B
41. Which of the following forces enables a mosquito larva to stick to the surface of water?
A. adhesion
B. capillarity
C. gravity
D. surface tension
D
42. What mass of NaOH is contained in 0.2 M solution of NaOH? [Na=23, O=16, H=1]
A. 0.2 g
B. 0.8 g
C. 2.0 g
D. 8.0 g
D
43. Smut diseases of maize is caused by
A. bacterium
B. fungus
C. protozoan
D. virus
B
44. Which of the following statements about acids is incorrect? Acids
A. contain ionizable hydrogen
B. turn blue litmus paper red
C. are insoluble in water
D. are neutralized by bases
C
45. Which of the following ranks in classification shows the least resemblance among organisms?
A. Class
B. Genus
C. Order
D. Species
A
46. A simple electrical circuit is connected to a voltage supply of 1.5 V. If a current of 0.5 A flows through the circuit, calculate the total resistance of the circuit.
A. 0.75 Ω
B. 1.00 Ω
C. 2.00 Ω
D. 3.00 Ω
D
47. The following stages are involved in the process of childbirth except
A. stretching of the cervix of uterus
B. continuous relaxation of the abdominal walls
C. contractions of the walls of the uterus
D. breaking of the embryonic membranes
B
48. Which of the following computer parts is not a storage device?
A. floppy disk
B. hard disk
C. pen drive
D. random access memory
D
49. Sound waves are
A. longitudinal mechanical waves
B. transverse mechanical waves
C. longitudinal electromagnetic waves
D. transverse electromagnetic waves
A
50. A physical method of suppressing growth of weeds is by
A. cover cropping
B. hoeing
C. mulching
D. use of herbicides
B
51. Which of the following forms of energy cannot be transformed directly into heat energy?
A. chemical energy
B. electrical energy
C. kinetic energy
D. potential energy
D
52. Essential substances contained in glomerular filtrate
A. accumulate in the ureter
B. are reabsorbed into the blood
C. sink into the loop of Henle
D. are filtered out on the Bowman's capsule
B
53. The south-east and north-east trade winds are the direct result of
A. the rotation of the earth
B. differential heating of the earth's surface
C. orbital motion of the earth
D. gravitational attraction of the moon
B
54. A man survived stroke and noticed that he had become deaf. Which of the following explains his condition ?
A. part of the brain is damaged
B. thyroid gland has ceased functioning
C. eardrum is damaged
D. spinal cord is damaged
A
55. A steel ball of mass 20.0 kg cools from 120°C to 80°C. If the specific heat capacity of steel is 435 J/kg, calculate the quantity of heat given out.
A. 3.48 × 105 J
B. 4.32 × 105 J
C. 4.83 × 105 J
D. 8.43 × 105 J
A
56. A seed develops from the
A. endosperm
B. ovary wall
C. ovule
D. sepal
C
57. A voltage transformer in which the number of turns in the primary coil is greater than that of the secondary is known as a/an.
A. analogue transformer
B. distributing transformer
C. step-down transformer
D. step-up transformer
C
58. The use of variegated leaf in photosynthesis experiments is to show that
A. light is essential in photosynthesis
B. chlorophyll is essential in photosynthesis
C. starch is formed during photosynthesis
D. carbon dioxide is an ingredient of photosynthesis
B
59. Rice grown on slopes of hill is called
A. long-grain rice
B. paddy rice
C. swamp rice
D. upland rice
D
60. The advantages of the use of computers include
I. accuracy of details
II. cost saving
III. Increased speed of work
IV. security of documents
A. I, II and III only
B. I,III and IV only
C. II,III and IV only
D. I,II,III and IV
D