XMSS 2025 4E Bio Prelim Paper 1

This document contains 24 printed pages. XINMIN SECONDARY SCHOOL SEKOLAH MENENGAH XINMIN Preliminary Examination 2025 CANDIDATE NAME CLASS INDEX NUMBER BIOLOGY Paper 1 Multiple Choice Secondary 4 Express Setter: Ms Hafizah Vetter: Mdm Norfarhana 6093/01 29 Aug 2025 1 hour Additional Materials: Multiple Choice Answer Sheet READ THESE INSTRUCTIONS FIRST Write in soft pencil. Do not use staples, paper clips, highlighters, glue or correction fluid. Write your name, class and index number on the Question Paper and Answer Sheet in the spaces provided. There are forty questions in this paper. Answer all questions. For each question, there are four possible answers, A, B, C, 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. For Examiner’s Use Total 40 Parent’s Signature [Turn over

2 XMSS/Biology/6093/01/Preliminary Examination 2025 1 The diagram shows an animal cell. What is the function of this cell? A carry oxygen from lungs to body cells B deaminate excess amino acids C secrete digestive enzymes D selectively reabsorb amino acid molecules 2 Which of the following cells do not contain DNA? A 1 and 2 B 1 and 4 C 2 and 4 D 3 and 4

3 XMSS/Biology/6093/01/Preliminary Examination 2025 3 The graphs show the rate of uptake of sugars (3 -carbon or 6-carbon) by a culture of animal cells, under different conditions. How do the different sugars get absorbed by the animal cells? 3-carbon sugar 6-carbon sugar A active transport active transport B active transport diffusion C diffusion active transport D diffusion diffusion 4 A student cuts out four pieces of carrot of equal size. The pieces are treated as shown in diagram, and then left for two hours. After two hours, which piece of carrot will be the smallest? oxygen gas bubbled through the culture nitrogen gas bubbled through the culture rate of uptake rate of uptake 3-carbon sugar 6-carbon sugar 3-carbon sugar 6-carbon sugar temperature / °C temperature / °C sugar solution boiled carrot water boiled carrot sugar solution fresh carrot fresh carrot water [Turn over

4 XMSS/Biology/6093/01/Preliminary Examination 2025 5 Four sugar solutions were tested with Benedict’s solution. The table shows the colour of the solutions after testing. solution colour 1 green 2 blue 3 red 4 yellow Which solutions will produce the results shown above? solution 1 solution 2 solution 3 solution 4 A 0.05% glucose solution 0.5% sucrose solution 1.0% glucose solution 0.1% glucose solution B 0.5% sucrose solution 0.05% glucose solution 0.1% glucose solution 1.0% glucose solution C 1.0% glucose solution 1.0% sucrose solution 1.5% glucose solution 0.5% glucose solution D 1.0% sucrose solution 0.5% glucose solution 0.5% sucrose solution 1.0% sucrose solution 6 The diagram represents the activity of an enzyme. Which row represents 1, 2 and 3? 1 2 3 A protease polypeptide amino acid B polypeptide amino acid protease C polypeptide ribosome amino acid D polypeptide amino acid ribosome

5 XMSS/Biology/6093/01/Preliminary Examination 2025 7 A student was investigating the effect of temperature on an enzyme-catalysed reaction, which occurs in the stomach of a human. He measured the mass of product formed at 20 -minute intervals over a 2-hour period at 25°C. The experiment was then repeated at 37°C and 55°C. The results are represented in the graph below. Which row shows the correct temperature for graphs X, Y and Z? 25°C 37°C 55°C A Z Y X B Y X Z C X Y Z D Y Z X X Y Z [Turn over

6 XMSS/Biology/6093/01/Preliminary Examination 2025 8 The diagram represents some human organs and their blood vessels. Immediately after taking an alcoholic drink, how would the levels of alcohol compare in blood vessels X, Y and Z? X Y Z A high medium high B medium high low C low high medium D high low low 9 The diagram shows a section of the small intestine in which partially digested food is being pushed along. What is the state of the longitudinal muscles at 1 and 2? 1 2 A contracted contracted B contracted relaxed C relaxed contracted D relaxed relaxed X kidney liver small intestine Z Y

7 XMSS/Biology/6093/01/Preliminary Examination 2025 10 The nutritional information of four cereals are shown in the table. cereal fat / g protein / g carbohydrate / g fibre / g honey crunch 1.9 5.0 24.0 2.5 koko rice 0.8 2.2 22.0 2.3 maple mix 1.7 5.5 31.0 4.4 Which cereal is the most suitable as regular breakfast for someone suffering from heart disease and which would result in the highest increase in urea in the blood? most suitable for someone suffering from heart disease result in highest increase in urea in the blood A honey crunch honey crunch B honey crunch maple mix C koko rice maple mix D maple mix honey crunch 11 Hypoplastic left heart failure is a rare heart condition in which the lower left chamber of the heart has not developed properly and is much smaller than normal. The immediate result of this condition is to cause lower than normal blood flow into which blood vessel? A aorta B pulmonary artery C pulmonary vein D vena cava [Turn over

8 XMSS/Biology/6093/01/Preliminary Examination 2025 12 The diagram shows the pressures in the left side of the heart during one heartbeat. Which option shows the correct action of the bicuspid and semi-lunar valves at point X? bicuspid semi-lunar A closed closed B closed open C open closed D open open X

9 XMSS/Biology/6093/01/Preliminary Examination 2025 13 The table shows the results of a blood test of three students, P, Q and R for blood transfusion. donor P Q R recipient P agglutination no agglutination Q no agglutination no agglutination R agglutination agglutination Which of the following shows the blood types of students P and Q? student P student Q A A AB B A O C B B D O AB 14 The diagram shows the blood pressure of a person at rest as the blood leaves the heart and passes through arteries and then capillaries. Which line shows the pressure of blood as it flows through veins before returning to the heart? [Turn over

10 XMSS/Biology/6093/01/Preliminary Examination 2025 15 The graph shows changes in the concentration of lactic acid in the muscles of an athlete after a race started. How long did the athlete run for? A 4.5 min B 5.5 min C 9.0 min D 10.0 min 16 The graph shows the changes in air pressure in the lungs during a complete cycle of breathing. What causes the change in air pressure between S and T? A contraction of internal intercostal muscles B decrease in volume of lungs C inflow of air into the lungs D relaxation of diaphragm muscles