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It covers mitosis and the cell cycle, including DNA replication and the formation of two genetically identical cells, and introduces key terms such as chromosomes, nucleus, genes, gametes, zygote, and alleles. It also explains stem cells, uses in research, stem cell dilemmas, therapeutic cloning, and includes challenge and suggested reading prompts.",{"@graph":69,"@context":123},[70,84,106],{"@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/highsted-knowledge-organizer-biology-year-9-cell-division-overview/414440/",{"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/highsted-knowledge-organizer-biology-year-9-cell-division-overview/414440.png","ImageObject",300,407,{"name":92,"@type":93},"\tCallum ","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-11-01","2026-09-28",true,{"@type":102,"interactionType":103,"userInteractionCount":105},"InteractionCounter",{"@type":104},"ViewAction",11,{"@type":107,"mainEntity":108},"FAQPage",[109,115,119],{"name":110,"@type":111,"acceptedAnswer":112},"What happens during the cell cycle stages described in the organiser?","Question",{"text":113,"@type":114},"DNA replicates to form two copies of each chromosome, then mitosis pulls chromosome sets to opposite ends and the nucleus divides. Finally, the cytoplasm and cell membranes divide to form two genetically identical cells.","Answer",{"name":116,"@type":111,"acceptedAnswer":117},"How do stem cells differ, and what are they used for?",{"text":118,"@type":114},"Embryonic stem cells can differentiate into any type of cell, while adult stem cells are found in bone marrow and can differentiate into limited types, such as blood cells. Uses include replacing faulty blood cells and producing cells like insulin-producing cells and nerve cells.",{"name":120,"@type":111,"acceptedAnswer":121},"What ethical or medical issues are discussed about stem cell research?",{"text":122,"@type":114},"Embryonic stem cell collection and cloning raises ethical and religious issues because it may interfere with human reproduction and the embryo cannot consent. Adult stem cells may face risks such as viral infection and immune responses if donor and patient are unrelated.","https://schema.org",{"og:url":83,"og:type":125,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":127,"canonical":83},"index,follow",{"doc_id":129,"site_id":62},414440,1790863898,{"code":4,"msg":5,"data":132},{"doc_id":129,"user_id":133,"nickname":92,"user_avatar":134,"doc_module":4,"category_id":19,"category_name":20,"doc_title":65,"doc_description":67,"doc_content":135,"file_id":136,"file_url":137,"file_type":138,"file_size":139,"view_count":105,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":81,"language":140,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":141,"faqs":142,"seo_title":143,"seo_description":67,"update_tm":144,"read_time":39,"preview_page_count":4},137451211410,"https://ap-avatar.wpscdn.com/avatar/2000bb0a9246f588df?x-image-process=image/resize,m_fixed,w_180,h_180&k=1786362646172706240","Highsted Knowledge Organiser Biology Year 9: Cell Division  \n\n| What I need to know\u003Cbr>Cell division-mitosis;\u003Cbr>Growth and differentiation;\u003Cbr>Stems cells and stem cell dilemmas.\u003Cbr>Calculate the percentage of time a cell is in each stage of the cell cycle. Evaluate the use of stem cells in research. |  | Key Vocabulary:\u003Cbr>Chromosome: made of DNA and contains genes that code for certain characteristics.\u003Cbr>Nucleus: membrane bound structure that contains DNA\u003Cbr>Gamete: a sex cell e.g. sperm or egg.\u003Cbr>Genes: short sections of DNA that code for a characteristic.\u003Cbr>Allele: a different version of a gene. E.g. the allele for blue eye or green eyes\u003Cbr>Zygote: a single new cell made after a sperm and egg fuse. | Allele: a different version of a gene. E.g. the allele for blue eye or green eyes.\u003Cbr>Cell cycle: the series of stages the cells goes through in cell division.\u003Cbr>Mitosis: cell division that produces two genetically identical cells. Differentiate: where a cell become specialised to perform a particular function\u003Cbr>Stem Cell: an unspecialised cell that can differentiate into any type of cell.\u003Cbr>Cloning: producing genetically identical offspring.\u003Cbr>|  |\n| --- | --- | --- | --- | --- |\n| | Mitosis and the cell cycle Stage 1: DNA replicatesand forms two copies of each chromosome and increase the number of cell organelles. | Stem Cells\u003Cbr>Embryonic stem cells are undifferentiated cells, they have the potential to turn into any kind of cell.\u003Cbr>Adult stem cells are found in the bone marrow, they can only turn into some types of cells e.g. blood cells.\u003Cbr>Uses of stem cells:\u003Cbr>• Replacing faulty blood cells;\u003Cbr>• making insulin producing cells;\u003Cbr>• making nerve cells.\u003Cbr>\u003Cbr>Stem Cells in Plant\u003Cbr>In plants, stem cells are found in the meristem. These stem cells are able to produce clones of the plant. They can be used to grow crops with specific features for a farmer, e.g. disease resistant. | Stem cell dilemmas\u003Cbr>• Embryonic stem cells (ESCs) can be collected & cloned for potential medical uses.\u003Cbr>• This raises ethical & religious issues however, as some believe it interferes with human reproduction & the embryo cannot give consent.\u003Cbr>• Adult stem cells on the other hand might be infected with viruses, as well as triggering an immune response if the donor & patient are unrelated. DNA replication & production of new cell organelles\u003Cbr>e.g. ribosomes & mitochondria\u003Cbr>| Therapeutic cloning\u003Cbr>• An embryo is produced with the same genes as the patient.\u003Cbr>Stem cells from the cloned embryo are not rejected by the patient & so could be used for medical treatment. |\n|  |  |  |  | |\n| Stage 2: Mitosis: one set of chromosomes are pulled to each end of the cell and the nucleus divides.\u003Cbr>Stage 3 :the cytoplasm and the cell membranes divide to form two genetically identical cells.\u003Cbr>|  |  |  |  |\n| Challenge question:\u003Cbr>Why are plant stem cells useful to agriculture? Why might stem cells not be as successful as once hoped? |  |  |  |  |\n| Suggested reading\u003Cbr>[https://www.bhf.org.uk/informationsupport/heart-matters-magazine/research/breakthroughs-in-stem-cell-research](https://www.bhf.org.uk/informationsupport/heart-matters-magazine/research/breakthroughs-in-stem-cell-research)\u003Cbr>[https://www.bbc.co.uk/news/topics/cvenzmgygr8t](https://www.bbc.co.uk/news/topics/cvenzmgygr8t)\u003Cbr>[https://hsci.harvard.edu/diabetes-0](https://hsci.harvard.edu/diabetes-0) |  |  |  |  |\n\nHighsted Knowledge Organiser, Biology, Term 3, Year 9: Organisation and the Digestive system  \n\n| What I need to know\u003Cbr>Tissues and organs; the human digestive system; chemistry of food; enzymes; factors effecting enzymes.\u003Cbr>Required practical activity 4: use qualitative reagents to test for a range of carbohydrates, lipids and proteins.\u003Cbr>Required practical activity 5: investigate the effect of pH on the rate of reaction of amylase enzyme. Key Vocabulary:\u003Cbr>Cell: The basic building block of all living organisms. Tissue: A group of cells with a similar structur","cbCaisMtUIMIZ0eb","https://ap.wps.com/l/cbCaisMtUIMIZ0eb","pdf",942620,"English","# What I need to know\n## Cell division and the cell cycle\n## Key Vocabulary\n## Stem cells and uses\n## Stem cell dilemmas\n## Therapeutic cloning\n## Challenge question\n## Suggested reading","[{\"question\":\"What happens during the cell cycle stages described in the organiser?\",\"answer\":\"DNA replicates to form two copies of each chromosome, then mitosis pulls chromosome sets to opposite ends and the nucleus divides. Finally, the cytoplasm and cell membranes divide to form two genetically identical cells.\"},{\"question\":\"How do stem cells differ, and what are they used for?\",\"answer\":\"Embryonic stem cells can differentiate into any type of cell, while adult stem cells are found in bone marrow and can differentiate into limited types, such as blood cells. Uses include replacing faulty blood cells and producing cells like insulin-producing cells and nerve cells.\"},{\"question\":\"What ethical or medical issues are discussed about stem cell research?\",\"answer\":\"Embryonic stem cell collection and cloning raises ethical and religious issues because it may interfere with human reproduction and the embryo cannot consent. Adult stem cells may face risks such as viral infection and immune responses if donor and patient are unrelated.\"}]","Highsted Knowledge Organiser Biology Year 9 - Cell Division - Overview | PDF",1790597526]