Biology · 2017 · November · Paper 3 · SL · Question paper

36EP01 [Personal identifier removed] Biology Standard level Paper 3 © International Baccalaureate Organization 2017 35 pages 8817 – 6006 Instructions to candidates • Write your session number in the boxes above. • Do not open this examination paper until instructed to do so. • Answers must be written within the answer boxes provided. • A calculator is required for this paper. • The maximum mark for this examination paper is [35 marks]. Section A Questions Answer all questions. 1 – 3 Section B Questions Answer all of the questions from one of the options. Option A — Neurobiology and behaviour 4 – 7 Option B — Biotechnology and bioinformatics 8 – 11 Option C — Ecology and conservation 12 – 15 Option D — Human physiology 16 – 19 1 hour Thursday 16 November 2017 (morning) 36EP02 N 17 /4/BIOLO/SP3/ENG/TZ0 /XX– 2 – Section A Answer all questions. Answers must be written within the answer boxes provided. 1. To investigate the thermal properties of water, students placed hot water in two thin plastic cups and measured their rate of cooling. The sides of one cup were covered with tissue paper soaked in hot water; the other cup was left uncovered. The temperature was recorded with a thermometer every 4 minutes for 20 minutes. The temperature in the laboratory was 18 °C. Thermometer Thermometer Wet tissue paper Hot water Hot water [Source: © International Baccalaureate Organization 2017] Temperature / °C 80 70 60 50 40 30 20 10 0 0 4 8 12 16 20 Time / minutes Key: uncovered covered with wet tissue paper [Source: © International Baccalaureate Organization 2017] (a) Calculate the change in temperature in each cup after 20 minutes. [1] Uncovered: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Covered with wet tissue paper: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (This question continues on the following page)