ACSI Y4 IP Biology 2022

Anglo-Chinese School (Independent) Year 4 IP/SBGE/ACS Biology Final Examination Paper 1 2022 FINAL EXAMINATION 2022 YEAR FOUR INTEGRATED PROGRAMME / SBGE / ACS BIOLOGY Paper 1 Multiple Choice 3 October 2022 1 hour Additional materials: Multiple Choice Answer Sheet Soft eraser Soft pencil INSTRUCTIONS TO CANDIDATES Write in soft pencil. Write and shade your index number on the Multiple Choice Answer Sheet in the spaces provided. Do not open this examination paper until instructed to do so. There are forty questions on this question paper. Answer all questions. For each question, there are four possible answers, A, B, C, and D. Choose the one you consider correct and record your answer in soft pencil on the Multiple Choice Answer Sheet provided. Read the instructions on the Multiple Choice Answer Sheet very carefully. Each correct answer will score one mark. No marks will be deducted for a wrong answer. Any rough working should be done in the question booklet. Electronic calculators may be used. This paper consists of 21 printed pages. INDEX NUMBER Anglo - Chinese School (Independent)

2 Anglo-Chinese School (Independent) Year 4 IP/SBGE/ACS Biology Final Examination Paper 1 202 2 1 The diagram below shows the structure of a plant cell as seen using an electron microscope. Which structures are involved in the process of enzyme synthesis within this cell? A 1, 2, 4, 5 and 6 B 1, 3 and 6 C 2, 3, 5 and 6 D 3, 4 and 5 2 Identical pieces of potato are placed in sucrose solutions of different concentrations. After three hours, the mass of each potato piece is measured. Which graph shows the results of this experiment? A B C D

3 Anglo-Chinese School (Independent) Year 4 IP/SBGE/ACS Biology Final Examination Paper 1 202 2 [Turn over 3 The graph shows the effect of increasing substrate concentration on the rate of enzymatic reaction. What can be reasonably deduced from the shape of the curve? A From E to F, the enzyme concentration is limiting the rate of reaction. B From E to G, substrate concentration is limiting the rate of reaction. C From F to G, the enzyme concentration is limiting the rate of reaction. D From F to G, the substrate concentration is limiting the rate of reaction. rate of reaction concentration of substrate G F E

4 Anglo-Chinese School (Independent) Year 4 IP/SBGE/ACS Biology Final Examination Paper 1 202 2 4 Four equal masses of different foods were burned as shown. The temperature of the water was measured before and after each food sample was burned. The results are shown in the table. Which food sample is likely to contain the most fats? water temperature at the start/°C water temperature at the end/°C A 16 37 B 17 95 C 18 87 D 19 22

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