Dunman 2024 6093 P1 prelims_QP

This document consists of 18 printed pages. DUNMAN SECONDARY SCHOOL CANDIDATE NAME CLASS INDEX NUMBER PRELIMINARY EXAMINATION 2024 SECONDARY 4 EXPRESS BIOLOGY 6093/01 Paper 1 28 August 2024 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. Write your name, class and index number on the Answer Sheet in the spaces provided unless this has been done for you. There are forty questions on this paper. Answer all questions. For each questions 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.

2 6093/01/Prelim/4Exp/2024 1 Which cell is adapted for absorption? 2 Which structures will be present in a cell that causes pneumococcal disease? 1 circular DNA 2 cell wall 3 chloroplast A 1, 2 and 3 B 1 and 2 only C 1 and 3 only D 2 and 3 only 3 Which row shows the structures found in a red blood cell? nucleus cell membrane cell wall chloroplast vacuole A ✓ ✓ ✓ ✓ ✘ key B ✓ ✓ ✘ ✘ ✓ ✓ = present C ✘ ✓ ✘ ✘ ✓ ✘ = not present D ✘ ✘ ✓ ✘ ✘ A B C D

3 6093/01/Prelim/4Exp/2024 4 Five pieces of strips are cut from the same potato, all of equal size and shape. The strips are placed in sugar solutions of different concentrations. After four hours, the change in length of each potato piece is measured. The results are shown in the graph. 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 The bar chart shows the concentration of magnesium ions in the soil and in a plant root. How do magnesium ions move from the soil into the root? A active transport B diffusion C osmosis D transpiration percentage change in length of potato concentration of sugar solution (mol dm-3) soil root soil root concentration of magnesium ions

4 6093/01/Prelim/4Exp/2024 6 Some of the molecules found in animal tissues are grouped into three lists. 1 glucose, fats, proteins, water 2 glycogen, antibodies, adenine, fats 3 haemaglobin, oxygen, DNA, fatty acids Which lists include one or more molecules that always contain nitrogen atoms? A 1, 2 and 3 B 1 and 2 only C 1 and 3 only D 2 and 3 only 7 A positive food test produces an orange precipitate.