PLMGS S4Exp 5NA Sc Bio Prelim_P4_2025_QP

1 [Turn over] x CANDIDATE NAME CLASS CLASS INDEX NUMBER TG CENTRE NUMBER INDEX NUMBER SCIENCE (BIOLOGY) 5088/4 Paper 4 Biology 22 August 2025 No additional materials are required. 1 hour 15 minutes READ THESE INSTRUCTIONS FIRST Write your name, class and class index number on the front cover. Write in dark blue or black pen. You may use a soft pencil for any diagrams or graphs. Do not use staples, paper clips, highlighters, glue or correction fluid. The use of an approved calculator is expected, where appropriate. Section A (55 marks) Answer all questions. Write your answers in the spaces provided on the question paper. Section B (10 marks) There are two questions in this section. Answer only one question. Write your answers in the spaces provided on the question paper. At the end of the test, fasten all your work securely together, if applicable. The number of marks is given in brackets [ ] at the end of each question or part question. This document consists of 22 printed pages. For Examiner’s Use Section A 55 Section B 10 9 10 Total 65 Paya Lebar Methodist Girls’ School (Secondary) Preliminary Examination 2025 Secondary 4 Express / G3

2 [Turn over] Section A (55 marks) Answer all the questions in the spaces provided. 1 Fig. 1.1 shows the cell membrane of an animal and a plant cell. animal cell plant cell Fig. 1.1 (a) On Fig. 1.1, draw and label (i) one other structural feature that is found in both cells, (ii) two features found in a plant cell but not in an animal cell. [2]

3 [Turn over] Table 1.1 shows the average amount of protein, fat and carbohydrate found in some plant and animal tissues. Table 1.1 tissues percentage of protein percentage of fat percentage of carbohydrate plant 5 1 30 animal 20 15 1 (b) (i) Explain why there is a high percentage of carbohydrate in the plant tissues. ………………………………………………………………………………………..…... ……………………………………………………………………………………. [1] (ii) Name an animal tissue that would have more than the 1% of carbohydrate shown in Table 1.1. Explain your answer. tissue ………………………………………………….………………………………… explanation ……………………..…………………….………………………………… ………………………………………………………………………………………..…... ……………………………………………………………………………………. [2] (iii) Describe the functions of proteins and fats found in plant and animal tissues. proteins ………………………………………….……………….………………………. ………………………………………………………………………………………..…... fats……………………………………………….……………….……………………….. ……………………………………………………………………………………. [2] [Total: 7 marks]

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