Igcse Biology Solved 0610 Extended Final Past Exams

This document consists of 17 printed pages and 3 blank pages.DC (SC/AR) 145577/4 UCLES 2018 [Turn overCambridge International ExaminationsCambridge International General Certificate of Secondary Education*1630232262*BIOLOGY 0610/41Paper 4 Theory (Extended) May/June 20181 hour 15 minutesCandidates answer on the Question Paper.No Additional Materials are required.READ THESE INSTRUCTIONS FIRSTWrite your Centre number, candidate number and name on all the work you hand in.Write in dark blue or black pen.You may use an HB pencil for any diagrams or graphs.Do not use staples, paper clips, glue or correction fluid.DO NOT WRITE IN ANY BARCODES.Answer all questions.Electronic calculators may be used.You may lose marks if you do not show your working or if you do not use a\ppropriate units.At the end of the examination, fasten all your work securely together.The number of marks is given in brackets [ ] at the end of each questio\n or part question.This syllabus is approved for use in England, Wales and Northern Ireland as a Cambridge International Level 1/Level 2 C\ertificate.bestexamhelp.com30610/41/M/J/18 UCLES 2018[Turn over1 (a) The reactions of chemical digestion are catalysed by enzymes. Fig. 1.1 shows the stages of an enzyme-catalysed reaction.enzymeBAC DFig. 1.1 State the names of A to D in Fig. 1.1.A ..................................................................................................................\.............................B ..................................................................................................................\.............................C ..................................................................................................................\.............................D ..................................................................................................................\.............................