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The paper requires answers directly on the question paper and includes instructions for using dark blue/black pen, optional HB pencil for diagrams, and prohibition of staples, paper clips, glue, correction fluid, and writing in barcodes. Sections A–C cover structured questions on insect-pollinated flower buds and transverse sections, and on the human heart, blood vessel narrowing, causes, effects, and balloon-angioplasty operation purpose.",{"@graph":69,"@context":122},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":20,"@type":76,"position":81},"https://docshare.wps.com/document/exam/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/biology-paper-2-theory-mayjune-2018/642357/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/biology-paper-2-theory-mayjune-2018/642357.png","ImageObject",300,407,{"name":92,"@type":93},"Hazel","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-31","2026-10-23",true,{"@type":102,"interactionType":103,"userInteractionCount":24},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"What are the instructions for recording answers in this paper?","Question",{"text":112,"@type":113},"Candidates write answers in the spaces provided on the question paper. 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No Additional Materials are required.  \nREAD INSTRUCTIONS OVERLEAF  \nDC (ST/CT) 163528  \nThe whole of this paper is © UCLES 2018.  \nREAD THESE INSTRUCTIONS FIRST  \nWrite your Centre number, candidate number and name on all the work you hand in.  \nWrite in dark blue or black pen.  \nYou 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.  \nSECTION A  \nAnswer ALL questions in this section.  \nWrite your answers in the spaces provided on the Question Paper.  \nSECTION B  \nAnswer BOTH questions in this section.  \nWrite your answers in the spaces provided on the Question Paper.  \nSECTION C  \nAnswer EITHER question 8 OR question 9.  \nWrite your answers in the spaces provided on the Question Paper.  \nYou are advised to spend no longer than one hour on  \nSection A.  \nElectronic calculators may be used.  \nYou may lose marks if you do not show your working or if you do not use appropriate units.  \nAt the end of the examination, fasten all your work securely together.  \nThe number of marks is given in brackets [ ] at the end of each question or part question.  \nSECTION A  \nAnswer ALL questions in this section.  \nWrite your answers in the spaces provided.  \n1 The diagrams show the bud of an insect-pollinated  \nflower and a magnified transverse section through the same flower bud. The transverse section was taken atthe position shown by the dotted line.  \nstem  \nA  \nB  \nC  \nD  \n(a) Complete the table to show the name of each of structures A to D and to state ONE function of each structure.  \nThere are eight spaces to fill.  \n\n| LETTER | NAME OF STRUCTURE | FUNCTION |\n| --- | --- | --- |\n| A |  |  |\n| B |  |  |\n| C |  |  |\n| D |  |  |\n\n[8]  \n(b) The diagram shows an incomplete transverse section through the stem of this plant.  \n(i) Complete the diagram by drawing and labelling the positions of each of the following tissues:  \n• xylem,  \n• phloem. [2]  \n(ii) State ONE function of xylem tissue.  \n  [1]  \n[Total: 11]  \n2 The diagram shows the human heart.  \nThe blood vessel labelled F may become narrowed as shown.  \nF  \nnarrowing of blood vessel F  \n(a) (i) Name blood vessel F.  \n   [1]  \n(ii) Name the disease caused by the narrowing of this blood vessel.  \n   [1]  \n(iii) State THREE factors that may lead to the narrowing of this blood vessel.  \n1   2    \n3    \n[3]  \n(iv) Suggest and explain how a person might be affected by the disease caused by the narrowing of blood vessel F.  \n_______________________________________  \n\n|  |\n| --- |\n|  |\n|  |\n\n  [5]  \n(b) It is possible to treat the disease caused by the narrowing of blood vessel F, by carrying out an operation.  \nIn the operation:  \n• a balloon surrounded by a metal mesh is inserted into the blood vessel and inflated,  \n• the balloon is then deflated and removed, leaving the metal mesh in place.  \nbloodvessel  \nballoon  \nhollow metal mesh  \nSuggest the purpose of each of the following:  \ninflating the balloon,  \n\n|  |\n| --- |\n|  |\n\nleaving the hollow metal mesh in the blood vessel.  \n\n|  |\n| --- |\n|  |\n\n[3]  \n[Total: 13]","cbCaicf8eNHfTr3J","https://ap.wps.com/l/cbCaicf8eNHfTr3J","pdf",4014657,32,"English","# SECTION A\n## Question 1\n### (a)\n### (b)\n# SECTION A\n## Question 2\n### (a)\n### (b)","[{\"question\":\"What are the instructions for recording answers in this paper?\",\"answer\":\"Candidates write answers in the spaces provided on the question paper. Answers are to be written with dark blue or black pen, with HB pencil permitted for diagrams or graphs.\"},{\"question\":\"Which topics are covered in Section A?\",\"answer\":\"Section A includes questions on an insect-pollinated flower bud and transverse sections of plant tissues, and questions on the human heart and a blood vessel that becomes narrowed.\"},{\"question\":\"What is asked about the narrowed blood vessel and its treatment?\",\"answer\":\"The paper asks for the name of the blood vessel, the disease caused by its narrowing, three factors leading to narrowing, how a person may be affected, and the purpose of inflating a balloon and leaving metal mesh in the vessel.\"}]","BIOLOGY - Paper 2 Theory - May/June 2018 | PDF",1792721947,81]