PLMGS S4Exp 5NA Sc Bio Prelim_P1_2025 QP

CANDIDATE NAME CLASS CLASS INDEX NUMBER CENTRE NUMBER INDEX NUMBER SCIENCE (BIOLOGY) 5088 / 01 Paper 1 Multiple Choice 25 August 2025 Redox 1 1 hour Additional Materials: Multiple Choice Answer Sheet [Taken with Sc Chemistry] READ THESE INSTRUCTIONS FIRST Write in soft pencil. Do not use staples, paper clips, highlighters, glue or correction fluid. Write your name and index number on all the work you hand in. There are twenty multiple choice questions on this 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 choice in soft pencil on the separate Answer Sheet. Each correct answer will score one mark. A mark will not be deducted for a wrong answer. Any rough working should be done in this booklet. The use of an approved scientific calculator is expected, where appropriate. This paper consists of 11 pages including this cover page Paya Lebar Methodist Girls’ School (Secondary) Preliminary Examination 2025 Secondary 4 Express / G3

2 [Turn over 1 The diagram below shows four different cells. Which structure is found in all cells? A cell wall B nucleus C cell membrane D chloroplast 2 Which of the following statements correctly describe both diffusion and osmosis? A They require energy from mitochondria. B They must move across a partially permeable membrane. C They can occur only in liquid state. D They involve the movement of particles down a concentration gradient. 3 The diagram below shows four different plant cells carrying out aerobic respiration. Which of the following represents the movement of carbon dioxide molecules? A B C D

3 [Turn over 4 The key shows shapes representing small food molecules. Which diagram represents part of a cellulose molecule?

4 [Turn over 5 A group of students investigated the effects of temperature on starch digestion. Equal volumes of amylase and starch were added to the set-up where the temperature was increased from 10oC to 80oC over 20 minutes. Which of the following shows the results of the experiment? A B C D

5 [Turn over 6 A dish is filled with agar jelly containing milk. Four holes were cut in the jelly, and each hole is filled as shown in the diagram. After 30 minutes, which hole will be surrounded by the largest clear area?

6 [Turn over 7 The diagram below shows the human alimentary canal. Which of the