| 4(a) | X-primary structure Y-Secondary structure |
| (b) | The linear sequence of amino acids in the polypeptide chain./ Jujukan linear asid amino dalam rantai polipeptida. |
| (c) | Protein X is broken down by an enzyme/ polypeptidase in a process of hydrolysis to form dipeptide. |
| (d) | Because it contains all 8 essential amino acids needed by humans. Sebab ia mengandungi 8 asid amino perlu yang diperlukan oleh manusia. |
| (e)(i) | Silk is a protein fiber. High temperature will reduce the strength of hydrogen bonds, so this will distrupt the structure , thus denature proteins. Sutera adalah fiber protein. Suhu yang tinggi akan mengurangkan kekuatan ikatan hydrogen, ini akan mengganggu struktur protein lalu menyebabkan denaturasi. |
| (ii) | Wash it in a cold water./ Basuh dalam air sejuk Do not wring.. Do not expose to direct sunlight./ elak dedah terus kepada cahaya matahari Never use chlorine bleach on silk. / jangan menggunakan bahan peluntur klorin |
Wednesday, March 16, 2011
Question 4 SPM Paper 2 2010
Monday, January 31, 2011
Paper 1 SPM 2010
JAWAPAN KERTAS 1 BIOLOGI SPM 2010
1 | B |
| 2. | B |
| 3. | C |
| 4. | D |
| 5. | A |
| 6. | C |
| 7. | B |
| 8. | C |
| 9. | B |
| 10. | C |
| 11. | B |
| 12. | D |
| 13. | B |
| 14. | D |
| 15. | C |
| 16. | A |
| 17. | C |
| 18. | B |
| 19. | B |
| 20. | A |
| 21. | D |
| 22. | A |
| 23. | A |
| 24. | D |
| 25. | A |
| 26. | B |
| 27. | A |
| 28. | D |
| 29. | C |
| 30. | C |
| 31. | C |
| 32. | C |
| 33. | D |
| 34. | A |
| 35. | C |
| 36. | B |
| 37. | C |
| 38. | D |
| 39. | B |
| 40. | D |
| 41. | A |
| 42. | A |
| 43. | C |
| 44. | A |
| 45. | D |
| 46. | A |
| 47. | A |
| 48. | A |
| 49. | D |
| 50. | B |
Monday, January 10, 2011
Paper 1 SPM2010
1. 1.Question 1: The following statements are characteristics of a cell structure.
- Permeable to all fluids
Telap kepada semua cecair
- Rigid and not elastic
Tegar dan tidak kenyal
Which structure has these characteristics?
A. Vacuole
Vakuol
B. Cell wall
Dinding sel
C. Golgi apparatus
Jasad Golgi
D. Plasma membrane
Membran plasma
ANSWER : B
Why B ???
2. 2. Question 2. Diagram 1 shows the structure of rough endoplasmic reticulum.
Which process occurs in the ribosomes?
A. Transportation of lipids
Pengangkutan lipid
B. Synthesis of proteins
Sintesis of proteins
C. Production of ATP
Penghasilan ATP
D. Digestion of phospholipids
ANSWER: B
Why B ?