[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-457231-105":59,"doc-detail-457231-en":134},{"code":4,"msg":5,"data":6},0,"success",[7,13,18,23,28,33,38,43,48,51,55],{"id":8,"doc_module":4,"doc_module_name":9,"category_name":10,"show_sort_weight":11,"slug":12},1,"Document","Story & Novel",90,"story-novel",{"id":14,"doc_module":4,"doc_module_name":9,"category_name":15,"show_sort_weight":16,"slug":17},2,"Literature",80,"literature",{"id":19,"doc_module":4,"doc_module_name":9,"category_name":20,"show_sort_weight":21,"slug":22},4,"Exam",70,"exam",{"id":24,"doc_module":4,"doc_module_name":9,"category_name":25,"show_sort_weight":26,"slug":27},5,"Comic",60,"comic",{"id":29,"doc_module":4,"doc_module_name":9,"category_name":30,"show_sort_weight":31,"slug":32},6,"Technology",50,"technology",{"id":34,"doc_module":4,"doc_module_name":9,"category_name":35,"show_sort_weight":36,"slug":37},7,"Healthcare",40,"healthcare",{"id":39,"doc_module":4,"doc_module_name":9,"category_name":40,"show_sort_weight":41,"slug":42},8,"Research & Report",30,"research-report",{"id":44,"doc_module":4,"doc_module_name":9,"category_name":45,"show_sort_weight":46,"slug":47},9,"Religion & Spirituality",20,"religion-spirituality",{"id":46,"doc_module":4,"doc_module_name":9,"category_name":49,"show_sort_weight":46,"slug":50},"World Cup","world-cup",{"id":52,"doc_module":4,"doc_module_name":9,"category_name":53,"show_sort_weight":52,"slug":54},10,"Lifestyle","lifestyle",{"id":56,"doc_module":4,"doc_module_name":9,"category_name":57,"show_sort_weight":24,"slug":58},19,"General","general",{"code":4,"msg":60,"data":61},"ok",{"site_id":62,"language":63,"slug":64,"title":65,"keywords":66,"description":67,"schema_data":68,"social_meta":127,"head_meta":129,"extra_data":131,"updated_unix":133},105,"en","b2-cell-division-exam-practice-2-study-questions","B2 - Cell Division Exam Practice 2 - Study Questions","","B2 Cell Division Exam Practice 2 contains science exam questions and mark scheme content focused on plant and human cell division. It tests understanding of tissues, meristem tissue, mitosis and the cell cycle, including chromosome replication, separation and cytokinesis. It also asks learners to compare mitosis- and meiosis-produced cells, interpret data on cell division in a plant shoot, and evaluate advantages and drawbacks of embryonic versus adult bone marrow stem cells. Additional questions cover sperm cell production, DNA amounts, fertilisation, and ethical considerations for stem cell collection.",{"@graph":69,"@context":126},[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/b2-cell-division-exam-practice-2-study-questions/457231/",{"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/b2-cell-division-exam-practice-2-study-questions/457231.png","ImageObject",300,407,{"name":92,"@type":93},"MrHarris58","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-08","2026-09-30",true,{"@type":102,"interactionType":103,"userInteractionCount":39},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118,122],{"name":109,"@type":110,"acceptedAnswer":111},"What is a tissue in a plant shoot?","Question",{"text":112,"@type":113},"A tissue is made of cells with a similar structure and function.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"Which tissue is found at the growing tip of a plant shoot?",{"text":117,"@type":113},"The growing tip contains meristem tissue.",{"name":119,"@type":110,"acceptedAnswer":120},"How can cells produced by mitosis differ from those produced by meiosis?",{"text":121,"@type":113},"Cells produced by mitosis are genetically identical and maintain the chromosome number of the parent cell, while meiosis produces cells with a reduced chromosome number (and different genetic combinations).",{"name":123,"@type":110,"acceptedAnswer":124},"Why is it often considered more ethically acceptable to use stem cells from an umbilical cord than from a 4-day-old IVF embryo?",{"text":125,"@type":113},"Umbilical cord stem cells can be collected without involving the use of a very young embryo, avoiding ethical concerns associated with using embryo tissue.","https://schema.org",{"og:url":83,"og:type":128,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":130,"canonical":83},"index,follow",{"doc_id":132,"site_id":62},457231,1791179770,{"code":4,"msg":5,"data":135},{"doc_id":132,"user_id":136,"nickname":92,"user_avatar":137,"doc_module":4,"category_id":19,"category_name":20,"doc_title":65,"doc_description":67,"doc_content":138,"file_id":139,"file_url":140,"file_type":141,"file_size":142,"view_count":39,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":44,"language":143,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":144,"faqs":145,"seo_title":146,"seo_description":67,"update_tm":147,"read_time":148},687212988360,"https://ap-avatar.wpscdn.com/davatar_276721f389ce27ea32af1340a28f341c","B2-Cell Division Exam Practice 2  \nName:  \nScore:  \nQ1 .  \nA plant shoot is made of several tissues.  \n(a) What is a tissue?  \nTick (✓) one box.  \nA group of organs with one function  \nCells with a similar structure and function  \nThe organ systems in an organism  \n(1)  \n(b) What is the name of the tissue at the growing tip of a plant shoot?  \nTick (✓) one box.  \nMeristem  \nPhloem  \nXylem  \n(1)  \n(c) Plant cells divide by mitosis so that the plant can grow.  \nGive one other reason plant cells divide by mitosis.  \nDo not refer to growth in your answer.  \n___________________________________________________________________  \n___________________________________________________________________  \n(1)  \nThe diagram below shows a cell cycle.  \n(d) Which two processes happen during cell growth in the cell cycle?  \nTick (✓) two boxes.  \nThe chromosomes are copied   \nThe chromosomes separate   \nThe cytoplasm divides in two   \nThe nucleus divides   \nThe organelles increase in number   \n(2)  \n(e) In mitosis and meiosis cells divide to produce new cells.  \nCell division by meiosis produces gametes.  \nThe diagram below shows a cell dividing by mitosis and a different cell dividing by meiosis.  \nDescribe how the cells produced by mitosis are different from the cells produced by meiosis.  \nUse information from the diagram above.  \n\n|  |\n| --- |\n|  |\n|  |\n|  |\n|  |\n\n(3)  \n(f) A scientist investigated cell division in the growing tip of a plant shoot.  \nThe scientist recorded data at different distances from the tip of the shoot.  \nThe table below shows the results.  \n\n| Distance from shoot tip in mm | Mean cell length in μm | Percentage (%) of cells dividing |\n| --- | --- | --- |\n| 5 | 22 | 13 |\n| 10 | 23 | 9 |\n| 20 | 39 | 4 |\n| 30 | 77 | 0 |\n| 40 | 116 | 0 |\n\nGive two conclusions from the data in table above.  \n1.    \n2.    \n___________________________________________________________________  \n(2)  \n(Total 10 marks)  \nQ1 .  \nStem cells can be collected from human embryos and from adult bone marrow.  \nStem cells can develop into different types of cell.  \nThe table gives information about using these two types of stem cell to treat patients.  \n\n| Stem cells from human embryos | Stem cells from adult bone marrow |\n| --- | --- |\n| It costs £5000 to collect a few cells. | It costs £1000 to collect many cells. |\n| There are ethical issues in using embryo stem cells. | Adults give permission for their own bone marrow to be collected. |\n| The stem cells can develop into most other types of cell. | The stem cells can develop into only a few types of cell. |\n| Each stem cell divides every 30 minutes. | Each stem cell divides every four hours. |\n| There is a low chance of a patient’s immune system rejecting the cells. | There is a high chance of a patient’s immune system rejecting the cells. |\n| More research is needed into the use of these stem cells. | Use of these stem cells is considered to be a safe procedure. |\n\nScientists are planning a new way of treating a disease, using stem cells.  \nUse only the information above to answer these questions.  \n(a) Give three advantages of using stem cells from embryos instead of from adult bone marrow.  \n1.   2.    \n3.    \n(3)  \n(b) Give three advantages of using stem cells from adult bone marrow instead of from embryos.  \n1.    \n2.    \n3.    \n(3)  \n(Total 6 marks)  \nCombined Higher Question  \nQ1 .  \nThe diagram below shows the production of human sperm cells.  \n(a) Name the organ where the processes shown in the diagram above take place.  \n(1)  \n(b) (i) Not every cell in the diagram above contains the same amount of DNA.  \nCell A contains 6.6 picograms of DNA (1 picogram = 10-12 grams) .  \nHow much DNA is there in each of the following cells?  \nCell B   picograms  \nCell C   picograms  \nCell E   picograms  \n(2)  \n(ii) How much DNA would there be in a fertilised egg cell?  \n  picograms  \n(1)  \n(iii) A fertilised egg cell divides many times to form an embryo.  \nName this type of cell division.  \n(1)  \n(c) After a","cbCaimzhHWufhrPE","https://ap.wps.com/l/cbCaimzhHWufhrPE","pdf",312073,"English","# Q1 Cell Division and Plant Tissues\n## Tissues and meristem identification\n## Reasons for mitosis and cell cycle processes\n## Compare mitosis vs meiosis cell outcomes\n## Data conclusions on cell division in plant shoot\n# Q1 Stem Cells: Embryos vs Adult Bone Marrow\n## Advantages and disadvantages for treating patients\n# Combined Higher Question: Human Sperm Production and Stem Cells\n## Organ location for sperm production processes\n## DNA amounts in cells and fertilised egg cell\n## Identify cell division type for embryo formation\n## Ethics of umbilical cord vs IVF embryo stem cells\n## Advantages and limitations of using a child’s own cord stem cells\n# Mark Schemes","[{\"question\":\"What is a tissue in a plant shoot?\",\"answer\":\"A tissue is made of cells with a similar structure and function.\"},{\"question\":\"Which tissue is found at the growing tip of a plant shoot?\",\"answer\":\"The growing tip contains meristem tissue.\"},{\"question\":\"How can cells produced by mitosis differ from those produced by meiosis?\",\"answer\":\"Cells produced by mitosis are genetically identical and maintain the chromosome number of the parent cell, while meiosis produces cells with a reduced chromosome number (and different genetic combinations).\"},{\"question\":\"Why is it often considered more ethically acceptable to use stem cells from an umbilical cord than from a 4-day-old IVF embryo?\",\"answer\":\"Umbilical cord stem cells can be collected without involving the use of a very young embryo, avoiding ethical concerns associated with using embryo tissue.\"}]","B2 - Cell Division Exam Practice 2 - Study Questions | PDF",1790748667,23]