[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"doc-detail-208051-en":3,"doc-seo-208051-105":30,"detail-sidebar-cat-0-en-105":91},{"code":4,"msg":5,"data":6},0,"success",{"doc_id":7,"user_id":8,"nickname":9,"user_avatar":10,"doc_module":4,"category_id":11,"category_name":12,"doc_title":13,"doc_description":14,"doc_content":15,"file_id":16,"file_url":17,"file_type":18,"file_size":19,"view_count":20,"is_deleted":4,"is_public":20,"is_downloadable":20,"audit_status":20,"page_count":21,"language":22,"language_code":23,"site_id":24,"html_lang":23,"table_of_contents":25,"faqs":26,"seo_title":27,"seo_description":14,"update_tm":28,"read_time":29},208051,2336464648746,"Skyler","https://ap-avatar.wpscdn.com/davatar_276721f389ce27ea32af1340a28f341c",4,"Exam","GCSE Biology Foundation Tier Paper 1F - Biology Paper","GCSE Biology Foundation Tier Paper 1F focuses on core biological ideas through short-answer and diagram-based questions. Learners define tissue organization, identify leaf tissue features, and explain key processes such as transpiration and photosynthesis. The paper also assesses understanding of stomata control, epidermal adaptations, and transport in phloem, including naming cell sap components and processes moving sugars. In addition, it includes an investigation of pathogens and acid effects on bacteria survival using pH-adjusted test tubes.","| Please write clearly in block capitals. |  |  |  |\n| --- | --- | --- | --- |\n| Centre number |  | Candidate number |  |\n| Surname  \u003Cbr>Forename(s)  \u003Cbr>Candidate signature  \u003Cbr>I declare this is my own work. |  |  |  |\n\nGCSE  \nBIOLOGY  \nFoundation Tier Paper 1F  \nF  \nFriday 10 May 2024 Morning Time allowed: 1 hour 45 minutes  \nMaterials  \nFor this paper you must have:  \n• a ruler  \n• a scientific calculator.  \nInstructions  \n• Use black ink or black ball-point pen.  \n• Pencil should only be used for drawing.  \n• Fill in the boxes at the top of this page.  \n• Answer all questions in the spaces provided.  \n• If you need extra space for your answer(s), use the lined pages at the end of this book. Write the question number against your answer(s) .  \n• Do all rough work in this book. Cross through any work you do not want to be marked.  \n• In all calculations, show clearly how you work out your answer.  \nInformation  \n• The maximum mark for this paper is 100.  \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\n| For Examiner’s Use |  |\n| --- | --- |\n| Question | Mark |\n| 1 |  |\n| 2 |  |\n| 3 |  |\n| 4 |  |\n| 5 |  |\n| 6 |  |\n| 7 |  |\n| 8 |  |\n| TOTAL |  |\n\n\n| Answer all questions in the spaces provided. |  |  |\n| --- | --- | --- |\n| 0  1 Plants are made of different tissues.\u003Cbr> 0  1  .  1 Which term describes a group of tissues working together?\u003Cbr>|  |  |\n| Tick ( 􀀹 ) one box.\u003Cbr>Organ\u003Cbr>Organism\u003Cbr>Organ system | | [1 mark] |\n| Figure 1 shows the tissues in a leaf.\u003Cbr>Figure 1\u003Cbr>|  |  |\n\noutside the box  \n\n|  0  1  .  2 Draw one line from each leaf tissue to an important feature of the tissue.\u003Cbr>[2 marks] |  |\n| --- | --- |\n| Leaf tissue\u003Cbr>| Feature\u003Cbr>|\n| \u003Cbr> 0  1  .  3  Xylem tissue transports water to the leaves.\u003Cbr>Which term describes the loss of water from the leaves?\u003Cbr>[1 mark]\u003Cbr>Tick ( 􀀹 ) one box.\u003Cbr>Photosynthesis \u003Cbr>Respiration \u003Cbr>Transpiration \u003Cbr>\u003Cbr> 0  1  .  4  Which substance strengthens xylem tissue?\u003Cbr>[1 mark]\u003Cbr>Tick ( 􀀹 ) one box.\u003Cbr>Glucose \u003Cbr>Lignin \u003Cbr>Starch \u003Cbr>Question 1 continues on the next page |  |\n\noutside the box  \nFigure 1 is repeated below.  \nFigure 1  \n0  1  .  5  The upper epidermis is transparent.  \nExplain why the upper epidermis needs to be transparent.  \nUse Figure 1.  \n[2 marks]  \n\n|  |\n| --- |\n|  |\n|  |\n\noutside the box  \n0  1  .  6  Complete the sentences.  \nChoose answers from the box.  \n[2 marks]  \nchloroplasts guard cells meristems stomata  \nThe pores in the lower epidermis of a leaf are called   . The opening and closing of the pores in the lower epidermis is controlled by   .  \nQuestion 1 continues on the next page  \nbox  \nFigure 2 shows two cells from phloem tissue.  \nFigure 2  \nFigure 2 cannot be reproduced here due to third-party copyright restrictions.  \nIt is a photograph showing two cells from phloem tissue from page numbers 111-120 of the  \nfollowing publication:  \nCytochemical Localization of Adenosine Triphosphatase in the Phloem of Pisum sativum and its Relation to the Function of Transfer Cells, Planta Vol. 2 by B J Bentwood and J  \nCronshaw  \n0  1  .  7  Part A in Figure 2 contains cell sap.  \nName part A in Figure 2.  \n[1 mark]  \noutside the box  \n\n|  |  |  |  |  | Sugars move from cell Y into cell X against the concentration gradient. Energy is needed to move sugars against the concentration gradient.\u003Cbr>Which process moves sugars against the concentration gradient?\u003Cbr>Tick ( 􀀹 ) one box. |  | [1 mark]\u003Cbr>[1 mark] | outside box |\n| --- | --- | --- | --- | --- | --- | --- | --- | --- |\n|  | 0 | 1 | . | 8 |  |  |  |  |\n|  |  |  |  |  |  |  |  |  |\n|  |  |  |  |  | Active transport\u003Cbr>Diffusion\u003Cbr>Osmosis | |  |  |\n|  | 0 | 1 | . | 9 | Which cell structures are needed to provide energy to move sugars?\u003Cbr>Tick ( 􀀹 ) one box. |  |  |  |\n|  |  |  |  |  |  |  |  |  |\n|  |  |  |  |  | Chloroplasts\u003Cbr>Chromosomes\u003Cbr>M","cbCaieVcNKeOD52U","https://ap.wps.com/l/cbCaieVcNKeOD52U","pdf",514289,1,44,"English","en",105,"# Question 1: Plants and leaf tissues\n## Tissue organization, xylem, transpiration, xylem strengthening, epidermis transparency\n## Stomata, guard cells, meristems, chloroplasts\n## Phloem cells, active transport, energy supply for sugar transport\n# Question 2: Pathogens, stomach acid, and bacteria survival\n## Skin defenses and method for testing acid effects\n## Survival fraction, bacteria killed at different pH values, and calculating missing value","[{\"question\":\"What term describes a group of tissues working together?\",\"answer\":\"A group of tissues working together is called an organ system.\"},{\"question\":\"What is the loss of water from the leaves called?\",\"answer\":\"The loss of water from the leaves is called transpiration.\"},{\"question\":\"How is the survival of bacteria tested at different pH values?\",\"answer\":\"Culture solution is adjusted to specific pH levels, bacteria are added, samples are taken at set times, and live bacteria counts are recorded after incubation at 37 °C.\"}]","GCSE Biology Foundation Tier Paper 1F - 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