COMBINED SCIENCE | NOVEMBER 2019 SESSION | Practice Paper 1
COMBINED SCIENCE | NOVEMBER 2019 SESSION | Practice Paper 1
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Question 1 of 39
1. Question
- The diagram shows the internal structure of a leaf. In which tissue, A, B, C or D, does most photosynthesis take place?
CorrectIncorrectHint
One of the limiting factors of photosynthesis in the presence of chloroplasts. In fact, photosynthesis takes place in the region with the cells with the most chloroplasts. Choose the region with the most chloroplasts.
- The diagram shows the internal structure of a leaf. In which tissue, A, B, C or D, does most photosynthesis take place?
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Question 2 of 39
2. Question
2. Which cell is specialised for contraction?
CorrectIncorrectHint
Contraction allows the change in the size of certain body tissue to allow movement. Look for the cell that is important to movement.
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Question 3 of 39
3. Question
3. Overfeeding causes
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Question 4 of 39
4. Question
4. Which teeth are used for cutting food?
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Question 5 of 39
5. Question
5. The equation for respiration is given below:
Product P is
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Question 6 of 39
6. Question
6. What is the function of the enzyme amylase in digestion?
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Question 7 of 39
7. Question
7. As compared to the aorta, the vena cava
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Question 8 of 39
8. Question
8. The rate of transpiration is low when there is high
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Question 9 of 39
9. Question
9. Wind pollinated flowers have
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Question 10 of 39
10. Question
10. Which part of the male reproductive system produces sperms?
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Question 11 of 39
11. Question
11. The graph shows some of the changes during the 28 day menstrual cycle.
What is the function of the hormone?
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Question 12 of 39
12. Question
12. The diagram shows the carbon cycle.
Which process, A, B, C or D, causes global warming?
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Question 13 of 39
13. Question
13. Which statement is true about the blood circulatory system?
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Question 14 of 39
14. Question
14. Which organism causes malaria?
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Question 15 of 39
15. Question
15. An element X has the nuclide notation:
What does p represent?
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Question 16 of 39
16. Question
16. The electronic configuration of a sodium atom is 2, 8, 1 and that of an oxygen atom is 2, 6. What is the formula of the compound formed between sodium and oxygen?
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Question 17 of 39
17. Question
17. The diagram shows the type of bonding in a molecule. H represents an atom and X represents an electron.
What is the type of bonding shown in the diagram?
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Question 18 of 39
18. Question
18. Which method is used to separate a mixture of dyes?
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Question 19 of 39
19. Question
19. Which gas is produced when a metal reacts with an acid?
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Question 20 of 39
20. Question
20. Substances A, B, C and D have pH values shown in the diagram.
Which substance is a strong acid?
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Question 21 of 39
21. Question
21. The diagram shows the blast furnace.
At which point, A, B, C or D, is iron collected?
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Question 22 of 39
22. Question
22. Which gas is produced during the electrolysis of molten lead bromide?
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Question 23 of 39
23. Question
23. Which one is a raw material needed to produce sulphuric acid?
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Question 24 of 39
24. Question
24. What is the correct ratio of nitrogen to hydrogen in the production of ammonia?
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Question 25 of 39
25. Question
25. Ethene is used to make
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Question 26 of 39
26. Question
26. Which gas is used in the manufacture of margarine?
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Question 27 of 39
27. Question
27. A hydrocarbon is a molecule that contains atoms of
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Question 28 of 39
28. Question
29. Which one is a derived unit?
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Question 29 of 39
29. Question
30. The mass of 25
of liquid K is 50 g.What is the density of liquid K?
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Question 30 of 39
30. Question
31. What is the pressure when a force of 100 N acts on an area of 25 m2 ?
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Question 31 of 39
31. Question
32. What is the correct formula for calculating pressure in liquids? [h represents the height of the liquid, represents the density of the liquid and g represents the acceleration due to gravity]
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Question 32 of 39
32. Question
33. Heat from the sun reaches the earth through
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Question 33 of 39
33. Question
34. Why are black pots used on solar cookers?
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Question 34 of 39
34. Question
35. Which diagram, A, B, C or D, represents the pattern and the direction of the magnetic field around a straight wire carrying a current out of the page?
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Question 35 of 39
35. Question
36. Why are electric cables insulated?
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Question 36 of 39
36. Question
37. Which statement, about a fuse, is correct?
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Question 37 of 39
37. Question
38. A household uses 250 kWh of electricity per month. The unit cost of electricity is 20 c. What is the total cost of the electricity used by the household per month?
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Question 38 of 39
38. Question
39. Sound signal in an optic fibre is transmitted as
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Question 39 of 39
39. Question
40. Which one is a function of an antenna?
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of liquid K is 50 g.