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Notes On Biology Score A+

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Published in: Biology
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Biology SPM Confidential Paper 2020

Muhammad R / Johor Bahru

9 years of teaching experience

Qualification: CGPA 3.90 ~ Bachelor of Education (Biology) with Honours (On-going)

Teaches: Mathematics, Science, Bahasa Inggeris, Bahasa Melayu, Biology, Chemistry, Modern Maths, Bahasa Malaysia

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  1. | 2020 BIOLOGY SPM CONFIDENTIAL Studying BIOLOCY BIOLOGY SCORE A+ Edit with WPS Office
  2. | 2020 BIOLOGY SPM CONFIDENTIAL STUDENT'S COPY KNOWLEDGE LEVEL 1. Diagram 1 shows the structure of a cell as seen under an electron microscope. Rajah 7 menunjukkan struktur satu sel yang diperhatikan di bawah mikroskop elektron. o Diagram 1 (a) (i) Name the type of the cell. Namakan jenis sel tersebut. [1 mark] (ii) State one reason for your answer in a (i) Nyatakan satu sebab bagijawapan yang dinyatakan dalam (a) (i). [1 mark] (b) (i) Name the structures labeled P, Q and R. Namakan struktur berlabel P, Q dan R. [3 marks] BIOLOGY SCORE A+ Edit with WPS Office 2
  3. 2. | 2020 BIOLOGY SPM CONFIDENTIAL Diagram 1 shows the different stages which take place during cell division. Rajah 1 menunjukkan peringkat berlainan yang berlaku semasa pembahagian sel. 11 2 DIAGRAM 1 Rajah 1 (a) (i) Name the cell division shown in Diagram 1. Namakan pembahagian sel yang ditunjukkan dalam Rajah 1. [1 mark] (ii) Name the stages labelled K and N? Namakan peringkat yang dilabelkan sebagai K dan N? K. [2 marks ] BIOLOGY SCORE A+ Edit with WPS Office 3
  4. | 2020 BIOLOGY SPM CONFIDENTIAL 3.Diagram 2(a) shows a plant cell. Diagram 2(b) shows the same plant cell that has been placed in solution X for 10 minutes. Rajah 2(a) menunjukkan satu sel tumbuhan. Rajah 2(b) menunjukkan sel tumbuhan yang sama selepas diletakkan dalam larutan X selama 10 minit. Diagram 2 Rajah 2 (a)Name the process that caused the changes in (a). Namakan proses yang menyebabkan perubahan di (a). [1 mark] 4. Diagram 2 shows a nitrogen cycle. Rajah 2 menunjukkan satu kitar nitrogen. Nitrogen ill the atmosphere Plants Nitmgen da/am afrnosfera Ntmte Animalproteill Ammonium compounds Protem Diagram 2 Rajah 2 (a) (i) Name the process X and Y. Namakan proses X dan Y x. BIOLOGY SCORE A+ Edit with WPS Office 4
  5. 5. | 2020 BIOLOGY SPM CONFIDENTIAL [2 marks] (ii) Name the compound Z. Namakan sebatian Z. [1 mark] (iii) Name the microorganisms involved in process Y. Namakan microorganisma yang terlibat dalam proses Y. [1 mark] Diagram 4 shows a longitudinal section of a human heart. Rajah 4 menunjukkan keratan bujur jantung manusia. Diagram 4 Rajah 4 a (i) On Diagram 4, label the following parts : Pada Rajah 4, labelkan bahagian-bahagian yang berikut : • Left ventricle / Ventrikel kiri • Bicuspid valve / Injap bikuspid • Pulmonary artery / Arteri pulmonary (ii) Draw a series of arrows to show the flow of oxygenated blood into the heart and out of the heart. Lukiskan satu siri anak panah untuk menunjukkan aliran darah beroksigen masuk dan keluar dari jantung. BIOLOGY SCORE A+ Edit with WPS Office 5
  6. | 2020 BIOLOGY SPM CONFIDENTIAL UNDERSTANDING LEVEL 1. Diagram 3.1 shows a section through human alveolus . Diagram 3.7 menunjukkan suatu bahagian alveolus manusia. Diagram 3.1 Rajah 31 (a) Based on the Diagram 3.1, explain two adaptations of the alveolus to increase its effectiveness in respiratory gaseous exchange. Berdasarkan pada Rajah 3.1, terangkan dua penyesuaian alveolus untuk meningkatkan kecekapannya dalam pertukaran gas respirasi. [2 marks] (b) Diagram 3.2 shows the flow chart in the regulation of the carbon dioxide concentration in the body fluid. Rajah 3.2 menunjukkan carta a/ir dalam pengawa/aturan kepekatan karbon dioksida dalam bendalir badan. BIOLOGY SCORE A+ Edit with WPS Office 6
  7. The of C02 The at i on of C02 at normal | 2020 BIOLOGY SPM CONFIDENTIAL chemorec opt ors Rate of heut Diagram 3.2 Rajah 3.2 2. Name the structures R and S. Describe the function of structure below . Namakan struktur R dan S. Huraikan fungsi struktur tersebut : Description: [2 marks] s. Description: [2 marks] Diagram 4.1 shows a human digestive system. Rajah 4 1 menunjukkan sistem pencernaan manusia. Diagram 4.1 Rajah 4.7 BIOLOGY SCORE A+ Edit with WPS Office 7
  8. (b) | 2020 BIOLOGY SPM CONFIDENTIAL (a) Explain what happen to a food with high protein content at Y if organ X is damaged. Terangkan apa yang terjadi kepada pencernaan makanan yang tinggi kandungan protein di Yjika organ X rosak. [2 marks] Diagram 4.2 shows the fine projection structure which can be observed from cross section of T . Rajah 4.2 menunjukkan struktur unjuran halus yang dapat diperhatikan daripada keratan rentas . Diagram 4.2 Rajah 4.2 (i) Explain how the structure in Diagram 4.2 is adapted to carry it's function . Terangkan bagaimana struktur pada Rajah 4.2 disesuaikan untuk menjalankan fungsinya . [2 marks] BIOLOGY SCORE A+ Edit with WPS Office 8
  9. | 2020 3. 4. BIOLOGY SPM CONFIDENTIAL Diagram shows a human foetus in his motheMs uterus. Rajah menunjukkan fetus manusia di dalam uterus ibu. Diagram Rajah Explain why the foetus has a separate blood circulatory system from his mother. [2 marks] Diagram 4.1 shows the release of gas X from Elodea sp. through photosynthesis. Rajah 4.1 menunjukkan pembebasan gas X dari Elodea sp. melalui fotosintesis. Light source Sum ber cahaya Gas X O. I Sodium hydiogeu carbonate solution 0.1% Larutan narrium hidrogen karbonat Elodea sp. leaf Dann Elodea sp. Diagram 4.1 Rajah 4.1 (a) (i) Name gas X. Namakan gas x. [ 1 mark] 9 BIOLOGY SCORE A+ Edit with WPS Office
  10. | 2020 BIOLOGY SPM CONFIDENTIAL (b) Explain briefly how gas X in (a)(i) is produced. Terangkan dengan ringkas bagaimana gas X di dihasi/kan. 5. [2 marks] Diagram 2.1 shows the changing process in an abandoned mining pond. Rajah 2.1 menunjukkan proses perubahan yang berlaku dalam sebuah kolam terbiar. forest Diagram 2.1 / Re-yah 2. (b) Q is a successor to P plants. Describe the role of Q as a successor plant. Q adalah penyesar pada tumbuhan P. Terangkan bagaimana Q berperanan sebagai tumbuhan penyesar. BIOLOGY SCORE A+ Edit with WPS Office 10
  11. | 2020 BIOLOGY SPM CONFIDENTIAL 3 marks ] APPLICATION LEVEL 1. Diagram 2.2 and 2.3 show the condition of two plants which are added with fertilizer. The plant in Diagram 2.3 is added with excess fertilizer. Explain the condition of the plant in Diagram 2.3. Rajah 2.2 dan 2.3 menunjukkan keadaa dua batang pokok yang disiram dengan baja. Pokok dalam Rajah 2.3 disjram dengan baja yang berlebihan. Terangkan keadaan pokok dalam Rajah 2.3. Diagram 2.2 Diagram 2.3 [3 marks] 2. A dog suddenly barks and chases you. Your heartbeat increases and your palms become sweaty. You feel so scared and run away. Seekor anjing tiba-tiba menyalak dan mengejar anda. Degupan jantung anda meningkat dan tapak tangan anda berpeluh. Anda merasa amat takut dan terus melarikan diri Based on the above statement describe how endocrine system is involved in the 'fight and flight' situation. Berdasarkan penyataan di atas, huraikan bagaimana sistem endokrin terlibat dalam situasi 'lawan dan lari'. 11 BIOLOGY SCORE A+ Edit with WPS Office
  12. | 2020 BIOLOGY SPM CONFIDENTIAL marks] 3. Diagram 3 shows an experiment to determine the energy values of a peanut and a dried prawn. Rajah 3 menunjukkan satu eksperimen untuk menentukan nilai tenaga satu biji kacang tanah dan seekor udang kering of retort sand thermometer boiling tube wind shield distilled water food sample plasticine Diagram 3 Rajah 3 In this experiment, 20 cm3 of distilled water is used and 2.0 g of peanut and 1.8 g dried prawn is burnt. The initial and final temperature of water is shown in Table below. Dalam eksperimen ini cm3 air suling digunakan dan 2. O g kacang tanah dan 1.8g udang kering dibakar. Suhu awal dan suhu akhir air ditunjukkan dalam Jadual 1 di bawah. Food sample Sampel makanan Peanut Kacan tanah Dried prawn Udan kerin Mass Jisim (g) 2.0 1.8 Initial temperature of water Suhu awal air 29 30 Final temperature of water Suhu akhir air 45 34 Rise in temperature of the water Kenaikan suhu air BIOLOGY SCORE A+ Edit with WPS Office 12
  13. | 2020 BIOLOGY SPM CONFIDENTIAL (b) Record the rise in temperature of the water in the spaces provided in Table 1. Rekod kenaikan suhu air dalam ruang yang disediakan pada Jadual 7. [1 mark] (c) The specific heat capacity of water is 4.2 Jg-l oc l. Use the following formula to calculate the energy values of the peanut and the dried prawn. Muatan haba tentu air ialah 4.2 Jg oc 1. Gunakan rumusan berikut untuk mengira nilai tenaga untuk kacang tanah dan udang kering Energy value = ( mass of water X 4.2 X rise in temperature of water) Jg mass of food air X 4.2 X kenaikan suhuair ) Jg 4. jisim makanan [4 marks I A mango farmer picked ten baskets of immature mangoes for sale. Give one suggestion to make all the mangoes ripen on the same time. Seorang pekebun mangga telah memetik sepuluh bakul buah mangga untuk dijual. Berikan satu cadangan untuk membolehkan semua buah mangga tersebut masak serentak. [1 mark] BIOLOGY SCORE A+ Edit with WPS Office 13
  14. | 2020 BIOLOGY SPM CONFIDENTIAL ANALYSIS LEVEL 1. Diagram 4.1 shows the blood circulatory system in organism P and Q. Rajah 4.7 menunjukkan sistem peredaran darah bag/ organism P dan organism Q. (c) Explain one difference in the structure of the heart between organism P and organism. Terangkan satu perbezaan antara strukturjantung organisma p dan organisma Q [2 marks] 2. Diagram 5.1 shows the formation of two pairs of twins. Rajah 5.1 menunjukkan pembentukan dua pasang anak kembar. BIOLOGY SCORE A+ Edit with WPS Office 14
  15. | 2020 BIOLOGY SPM CONFIDENTIAL o 1 1 Twins P Kembar O 1 O 9 O O Twins Q Kembar Q Diagram 5.1 Rajah 5.1 (a) Based on Diagram 5.1, describe the differences in the formation of the two pairs of twins. Berdasarkan Rajah 5 7, huraikan perbezaan dalam pembentukan kedua-dua pasang kembar itu. [3 marks] 3. Diagram 6 shows the alimentary canal of two organisms R and S. Rajah 6 menunjukkan salur pencernaan bagi dua organisma R dan S. BIOLOGY SCORE A+ Edit with WPS Office 15
  16. | 2020 BIOLOGY SPM CONFIDENTIAL Diagram 6 Rajah 6 (ii) Explain one similarity and four differences between alimentary canal R and S. Terangkan satu persamaan dan empat perbezaan antara salur pencernaan R dan S. 4. [10 marks] (c) Diagram 7. 3 shows two activities of movement in an earthworm and a grasshopper. Rajah 7.3 menunjukkan dua aktiviti pergerakan bagi seekor cacing tanah dan bela/ang. 2 3 4 5 6 7 Of movement 8 9 10 11 12 Diagram7.3 (i) Rajah 7.30) BIOLOGY SCORE A+ Edit with WPS Office 16
  17. | 2020 BIOLOGY SPM CONFIDENTIAL Diagram7.3 (ii) Rajah 7.3(ii) Explain one similarity and four differences between skeletal systems in both organisms. Terangkan satu persamaaan dan empat perbezaan antara sistem rangka bagi kedua-dua organisma. [10 marks] SYNTHESIS LEVEL 1. Farmers add chemical fertilisers and spray insecticides on their crops. Discuss the good and bad effects of both activities and their impact on agriculture and the environment. Para petani menambahkan baja kimia dan menyembur racun serangga kepada tanaman. Bincangkan kesan balk dan buruk kedua-dua aktiviti tersebut terhadap pertanian dan persekitaran. [10 marks] 2. Diagram 9.2 and 9.3 show a few examples of fresh food and processed food. Rajah 9.2 dan 9.3 menunjukkan beberapa contoh makanan segar dan makanan diproses. 17 BIOLOGY SCORE A+ Edit with WPS Office
  18. Diagram 9.2 Rajah 9.2 | 2020 BIOLOGY SPM CONFIDENTIAL Diagram 9.3 Rajah 9.3 Discuss the good effects and bad effects of processed food in our daily life. Bincangkan kesan-kesan baik dan buruk makanan diproses dalam kehidupan harian kita. [10 marks] 18 BIOLOGY SCORE A+ Edit with WPS Office

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