2010 pspm kedah biology 123 w ans

8/8/2019 2010 PSPM Kedah Biology 123 w Ans
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PEPERIKSAAN PERCUBAAN SPM 2010 4551/1
Peraturan Pemarkahan( Jawapan )
BIOLOGYPaper 1
29 Ogos 2010
1
4
1jam
PERSIDANGAN KEBANGSAAN PENGETUA-PENGETUA
SEKOLAH MENENGAH
NEGERI KEDAH DARULAMAN
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MARKING SCHEME
PAPER 1
TRIAL KEDAH 2010
1. C 26. A
2. A 27. A
3. C 28. B
4. D 29. C
5. C 30. C
6. B 31. C
7. A 32. B
8. D 33. A
9. D 34. C10. B 35. D
11. C 36. A
12. D 37. A
13. D 38. A
14. D 39. D
15. B 40. A
16. D 41. A
17. C 42. C
18. A 43. B19. D 44. B
20. C 45. A
21. B 46. B
22. D 47 D
23. A 48. A
24. B 49. C
25. C 50. B
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PEPERIKSAAN PERCUBAAN SPM 2010
BIOLOGY
PAPER 2
Two hours and thirty minutes
Peraturan Pemarkahan
( Jawapan )
4551/2
Biology
Kertas 2
29 Ogos 2010
2
12 hours
PERSIDANGAN KEBANGSAAN PENGETUA-PENGETUA
SEKOLAH MENENGAH
NEGERI KEDAH DARUL AMAN
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2
BIOLOGY
SECTION A
PAPER 2 [4551/2]
No. Marking Criteria / Sample Answers Marks
1 (a) (i) Gills 1
(ii) Tracheal system 1
(b) P : Filaments
Q: Spiracles
1
1 2
(c) (R is ring of chitin which) support the tracheal / prevent the tracheal
from collapsing.
1
(d) Diagram 1.1(b):
P1: The filament have numerous thin-walled lamellae to maximise
the surface area for gaseous exchange.
P2: The gill filaments have thin membrane and covered by a net
work of capillaries to transport respiratory gases.
P3: The surface of the gills is moist which allows the gases to be
dissolved.
Any 1P 1
Diagram 1.2(b)
P1: The large number of tracheoles provides a large surface for the
diffusion of gases.P2: Tip of tracheoles have thin permeable walls and contain fluid in
which respiratory gases can dissolve.
P3:Terminal ends of the tracheol remains moist which allows the
gases to be dissolved.
Any 1P
1
(e) (i) P1:( The gaseous exchange process occurs over the whole body
surface in an Amoeba sp) through simple diffusion.
P2:Higher concentration of oxygen in the water surrounding causes
oxygen to diffuse into the Amoeba.
P3:Higher concentration of carbon dioxide in the cell causes carbondioxide to diffuse out of the Amoeba.
Any 2P
1
1
1
2
(ii) S: Contractile vacuole 1
(iii) P1: Freshwater is hypotonic to the cytoplasmic fluid of Amoeba sp .
P2: Water diffuses into the cell and fill the contractile vacuole by
osmosis
P3: When the contractile vacuole is filled with water to its maximum
size, it contracts to expel its content from time to time.
Any 2P
1
1
1
2
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3
No. Marking criteria/ Sample answers Mark
2 (a) (i) Osmosis 1
(ii) P1 : Sucrose solution is hypertonic / more concentrated.
P2 : Water diffuse from distilled water into the sucrose solutionP3 : The level of sucrose solution in the capillary tube stop rising
at the equilibrium stage / the concentration inside and outside
of the visking tubing is the same / the amount of water
diffuse into and out from the visking tubing is the same.
Any 2 Ps
1
11 2
(b) F- Sucrose molecules are too large
E- The visking tubing is a semi permeable membrane/
which only allows certain substances to pass through.
1
1 2
(c) (i) Y : crenation
Z : haemolysis
1
1 2
(ii) P1- Solution Z is hypotonic compare to red blood cell.
P2- Osmosis occur
P3- water leaves/ diffuses into the cell
P4- Red blood cell expand/ swell and burst.
Any 3P
1
1
1
1
3
(iii) F : No
P1 : Plant cell consists of cell wallP2 : Cell wall is made up of cellulose
// Cell wall able to withstand the pressure.
Any 2
1
11 2
Total 12
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4
No. Marking criteria/ Sample answers Mark
3 (a) (i) Absorption / Simple diffusion / facilitated diffusion 1
(ii) F1 thin wall/ one cell thick
E1 increase rate of diffusion of digested food/ nutrients
F2 large surface area/ has microvilli
E2 increase rate of absorption of digested food/ nutrient
F3 has a network of capillaries/ b

2010 pspm kedah biology 123 w ans

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