Jurongville Pure Biology Prelim 2024 Paper 1

JVSS Prelim 2024 4E Biology 6093/01 [Turn over JURONGVILLE SECONDARY SCHOOL PRELIMINARY EXAMINATION 2024 Secondary 4 Express STUDENT NAME CLASS INDEX NUMBER BIOLOGY 6093/01 Paper 1 1 hour Additional Materials: Multiple Choice Answer Sheet READ THESE INSTRUCTIONS FIRST Write in soft pencil. Do not use staples, paper clips, glue or correction fluid. White your name, index number and class on the Answer Sheet in the spaces provided. There are forty 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. Read the instructions on the Answer Sheet very carefully. 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. DO NOT OPEN THE BOOKLET UNTIL YOU ARE TOLD TO DO SO This document consists of 18 printed pages. For Examiner’s Use 40 O

2 JVSS Prelim 2024 4E Biology 6093/01 1 The diagram below shows an animal cell. Radioactively labelled amino acids are introduced to the cell. In which structure will radioactivity be first detected? 2 Which mature cell contains a nucleus? A red blood cell B root hair cell C sieve tube element D xylem vessel 3 Which process can only occur through a partially permeable membrane? active transport diffusion osmosis key A √ √ √ √ = yes B √ X X X = no C √ X √ D X √ √ A B C D

3 JVSS Prelim 2024 4E Biology 6093/01 [Turn over 4 Five strips are cut from a potato, all of equal size and shape. The strips are then placed in sugar solutions of different concentrations. After four hours, the change in length of each potato strip is measured. The results are shown in the graph below. Which concentration of sugar solution has approximately the same water potential as the potato? A 0.00 mol dm-3 B 0.15 mol dm-3 C 0.30 mol dm-3 D 0.40 mol dm-3 5 A student conducted a series of food tests on an unknown sample of food. The results are shown in the table below. What is the unknown sample most likely to be? reagent added observation iodine remains yellow Benedict’s solution orange precipitate Biuret reagent remains blue ethanol remains clear A apple slices B butter C fried fish D toasted bread

4 JVSS Prelim 2024 4E Biology 6093/01 6 A dish is filled with agar jelly containing starch. Four holes were cut in the jelly and each hole was filled as shown in the diagram below. After 30 min