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The questions focus on plant transport processes (active transport, water movement, stomata distribution and data handling), plant disease caused by tobacco mosaic virus (TMV), experimental approaches to glucose detection, and human defenses against microorganisms. The paper includes instructions on calculating, showing working, and structuring answers to meet mark-scheme requirements.",{"@graph":69,"@context":116},[70,84,99],{"@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/aqa-gcse-biology-sample-paper-1h-higher-tier-paper/207406/",{"url":83,"name":65,"@type":85,"author":86,"headline":65,"publisher":89,"fileFormat":92,"inLanguage":63,"description":67,"dateModified":93,"datePublished":93,"encodingFormat":92,"isAccessibleForFree":94,"interactionStatistic":95},"DigitalDocument",{"name":87,"@type":88},"Asher","Person",{"url":74,"name":90,"@type":91},"DocShare","Organization","application/pdf","2026-09-05",true,{"@type":96,"interactionType":97,"userInteractionCount":4},"InteractionCounter",{"@type":98},"ViewAction",{"@type":100,"mainEntity":101},"FAQPage",[102,108,112],{"name":103,"@type":104,"acceptedAnswer":105},"What does the paper assess in the plants section?","Question",{"text":106,"@type":107},"It assesses how plants move mineral ions and water, how stomata data can be collected, and how to calculate median and mean values.","Answer",{"name":109,"@type":104,"acceptedAnswer":110},"How does the paper connect TMV with chlorophyll and growth?",{"text":111,"@type":107},"It asks students to explain why TMV leads to reduced chlorophyll production, causing leaf discoloration and stunted growth.",{"name":113,"@type":104,"acceptedAnswer":114},"What is required when proposing a new drug for Ebola can be used in people?",{"text":115,"@type":107},"It asks what testing must be done before the drug is used to treat people, focusing on the need for appropriate testing prior to treatment.","https://schema.org",{"og:url":83,"og:type":118,"og:title":65,"og:site_name":90,"og:description":67},"article",{"robots":120,"canonical":83},"index,follow",{"doc_id":122,"site_id":62},207406,1788599436,{"code":4,"msg":5,"data":125},{"doc_id":122,"user_id":126,"nickname":87,"user_avatar":127,"doc_module":4,"category_id":19,"category_name":20,"doc_title":65,"doc_description":67,"doc_content":128,"file_id":129,"file_url":130,"file_type":131,"file_size":132,"view_count":4,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":133,"language":134,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":135,"faqs":136,"seo_title":137,"seo_description":67,"update_tm":123,"read_time":138},687197207639,"https://ap-avatar.wpscdn.com/davatar_a8503ba1806abce46bf441b54a3ca4cd","SPECIMEN MATERIAL  \nGCSE BIOLOGY  \nHigher Tier Paper 1H  \nH  \nSpecimen 2018 Time allowed: 1 hour 45 minutes  \nMaterials  \nFor this paper you must have:  \n• a ruler  \n• a calculator.  \nInstructions  \n• Answer all questions in the spaces provided.  \n• Do all rough work in this book. Cross through any work you do not want to be marked.  \nInformation  \n• There are 100 marks available on this paper.  \n• The marks for questions are shown in brackets.  \n• You are expected to use a calculator where appropriate.  \n• You are reminded of the need for good English and clear presentation in your answers.  \n• When answering questions 02.4 , 03.2 , and 10 you need to make sure that your answer:  \n‒ is clear, logical, sensibly structured  \n‒ fully meets the requirements of the question  \n‒ shows that each separate point or step supports the overall answer.  \nAdvice  \nIn all calculations, show clearly how you work out your answer.  \n\n| Please write clearly, in block capitals. |  |  |  |  |\n| --- | --- | --- | --- | --- |\n| Centre number |  | | Candidate number | |\n| Surname | |  |  |  |\n| Forename(s) \u003Cbr>Candidate signature   |  |  |  |  |\n\nThere are no questions printed on this page  \nSPECIMEN MATERIAL  \n0  1  Plants transport water and mineral ions from the roots to the leaves.  \n0  1  .  1  Plants move mineral ions:  \n• from a low concentration in the soil  \n• to a high concentration in the root cells.  \nWhat process do plants use to move these minerals ions into root cells?  \n[1 mark]  \nTick one box.  \nActive transport   \nDiffusion    \nEvaporation   \nOsmosis   \n0  1  .  2  Describe how water moves from roots to the leaves.  \n[2 marks]  \n\n|  |\n| --- |\n|  |\n|  |\n\nQuestion 1 continues on the next page  \nSPECIMEN MATERIAL  \nPlants lose water through the stomata in the leaves. The epidermis can be peeled from a leaf.  \nThe stomata can be seen using a light microscope.  \nTable 1 shows the data a student collected from five areas on one leaf.  \nTable 1  \n\n| Leaf\u003Cbr>area | Number of stomata |  |\n| --- | --- | --- |\n|  | Upper surface | Lower surface |\n| 1 | 3 | 44 |\n| 2 | 0 | 41 |\n| 3 | 1 | 40 |\n| 4 | 5 | 42 |\n| 5 | 1 | 39 |\n| Mean | 2 | X |\n\n0  1  .  3  Describe how the student might have collected the data in Table 1.  \n[3 marks]  \nSPECIMEN MATERIAL  \n0  1  .  4  What is the median number of stomata on the upper surface of the leaf?  \n[1 mark]  \n0  1  .  5  Calculate the value of X in Table 1.  \nGive your answer to 2 significant figures.  \n[2 marks]  \nMean number of stomata on lower surface of leaf =    \n0  1  .  6  The plant used in this investigation has very few stomata on the upper surface of the leaf.  \nExplain why this is an advantage to the plant.  \n[2 marks]  \n\n|  |\n| --- |\n|  |\n|  |\n\nTurn over for the next question  \nSPECIMEN MATERIAL  \n0  2  Tobacco mosaic virus (TMV) is a disease affecting plants.  \nFigure 1 shows a leaf infected with TMV.  \nFigure 1  \n0  2  .  1  All tools should be washed in disinfectant after using them on plants infected with TMV.  \nSuggest why.  \n[1 mark]  \n0  2  .  2  Scientists produced a single plant that contained a TMV-resistant gene.  \nSuggest how scientists can use this plant to produce many plants with the  \nTMV-resistant gene.  \n[1 mark]  \nSPECIMEN MATERIAL  \n0  2  .  3  Some plants produce fruits which contain glucose.  \nDescribe how you would test for the presence of glucose in fruit.  \n[2 marks]  \n\n|  |\n| --- |\n|  |\n|  |\n\n0  2  .  4  TMV can cause plants to produce less chlorophyll.  \nThis causes leaf discoloration.  \nExplain why plants with TMV have stunted growth.  \n[4 marks]  \n\n|  |\n| --- |\n|  |\n|  |\n|  |\n|  |\n|  |\n|  |\n|  |\n|  |\n\nTurn over for the next question  \nSPECIMEN MATERIAL  \n0  3  Microorganisms cause infections.  \nThe human body has many ways of defending itself against microorganisms.  \n0  3  .  1  Describe two ways the body prevents the entry of microorganisms.  \n[2 marks]  \n1    \n2  \nSPECIMEN MATERIAL  \n0  3  .  2  In 2014 the Ebola virus killed almost 8 000 people in Africa.  \nDrug co","cbCaiflqPdNCGm2a","https://ap.wps.com/l/cbCaiflqPdNCGm2a","pdf",560316,36,"English","# Plants transport water and mineral ions\n## Active transport and water movement\n## Stomata data: collection, median, mean\n# Tobacco mosaic virus (TMV)\n## Disinfection after handling infected plants\n## Using a TMV-resistant gene plant\n## Testing for glucose in fruit\n## Why TMV causes stunted growth\n# Microorganisms and human immunity\n## Preventing entry of microorganisms\n## Drug testing for Ebola","[{\"question\":\"What does the paper assess in the plants section?\",\"answer\":\"It assesses how plants move mineral ions and water, how stomata data can be collected, and how to calculate median and mean values.\"},{\"question\":\"How does the paper connect TMV with chlorophyll and growth?\",\"answer\":\"It asks students to explain why TMV leads to reduced chlorophyll production, causing leaf discoloration and stunted growth.\"},{\"question\":\"What is required when proposing a new drug for Ebola can be used in people?\",\"answer\":\"It asks what testing must be done before the drug is used to treat people, focusing on the need for appropriate testing prior to treatment.\"}]","AQA GCSE Biology Sample paper 1H - Higher Tier Paper | PDF",91]