[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"doc-detail-208106-en":3,"doc-seo-208106-105":30,"detail-sidebar-cat-0-en-105":90},{"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":4,"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},208106,1374402524268,"Berry Peter","https://ap-avatar.wpscdn.com/davatar_3d24733baf745e90a7e4bdd5f77d97b2",4,"Exam","GCSE Biology Revision - Topic 1 - Cell Biology","GCSE Biology revision notes for Topic 1: Cell Biology, covering core concepts and practical skills needed for the curriculum. Learners work through cells and microscopes, including magnification calculations and slide preparation, then compare prokaryotes and eukaryotes. The material explains cell specialisation and differentiation, explores stem cells and their potential uses and limitations, and connects these ideas to chromosomes and mitosis. It also includes diffusion, osmosis and active transport, plus exchanging substances in lungs, the leaf and the gut.","9-1 GCSE Combined Science  \nBiology  \nTopic 1 – Cell Biology pg 16-39  \n\n| GCSE Biology Revision – Topic 1– CELL BIOLOGY – Cells and Microscopes |  |  |  |  |  |  |\n| --- | --- | --- | --- | --- | --- | --- |\n| Draw and label an animal cell (pg 16) |  | Draw and label a plant cell (pg 17) |  | Microscopes (pg 18-20)\u003Cbr>Find out the formula for calculating magnification\u003Cbr>Magnification=\u003Cbr>1mm=   mm 1mm=   nm\u003Cbr>Q) A picture of an egg cell is 8mm wide. Its actual size is 200mm What is the magnification?\u003Cbr>Ans=x40 |  |  |\n|  |  |  |  | Top tips for preparing slides, using a microscope and drawing observations |  |  |\n| Prokaryotes and Eukaryotes (pg 16)\u003Cbr>Explain the difference between these terms\u003Cbr>Draw and label a bacterial cell (pg 17) |  |  |  |  |  |  |\n|  |  |  |  | KEY WORDS: |  | Describe the difference between aerobic and anaerobic respiration in yeast |\n\nGCSE Biology Revision – Topic 1– CELL BIOLOGY-Cell specialisation and stem cells  \nExplain the terms differentiation and specialisation (pg22)  \nWhat is a stem cell, where are they found?  \nDraw and annotate 3 examples of specialised animal cells (pg 22-23)  \nDraw and annotate 3 examples of specialised plant cells (pg 23)  \nExplain how stem cells may be useful to us (pg 24)  \nArguments against the use of stem cells (pg 25)  \nHow can farmers and garden centres make use of stem cells? (pg 25)  \n\n| GCSE Biology Revision – Topic 1– CELL BIOLOGY-Chromosomes and mitosis (pg 26-27) |  |  |  |\n| --- | --- | --- | --- |\n| What is a chromosome and where are they found?\u003Cbr>How many chromosomes are found inhuman cells? Where do they come from? | |  | Word Definition (mix and match) Gene A chemical arranged as a double helix 46 The stages of growth, DNA replication and division that cells go through Chromosome The process of cell division that produces identical daughter cells Cell cycle A small section of DNA that codes for a characteristic (my making a protein) mitosis A bundle of DNA that can be seen in dividing cells through a microscope DNA The number of chromosomes produced after a cell has undergone mitosis |\n| \u003Cbr>\u003Cbr>Mitosis\u003Cbr>\u003Cbr>What is the name of this process?\u003Cbr>Write down an explanation of what is happening at each stage in the boxes.\u003Cbr>How many daughter cells produced?\u003Cbr>Are the genes identical or different to parental cell?\u003Cbr>Why and where do cells undergo mitosis?\u003Cbr>|  | Label the diagram:\u003Cbr>\u003Cbr>A gene is a section of D  It controls a c  of your body. You have   chromosomes in the n  of your b  cells. Arranged in   pairs. One of each pair is inherited from your m  and one from your f  Your sex cells or g  only have   chromosomes. |  |\n\n\n| GCSE Biology Revision – Topic 1– CELL BIOLOGY-Diffusion, osmosis and active transport |  |  |  |  |  |  |\n| --- | --- | --- | --- | --- | --- | --- |\n| \u003Cbr>\u003Cbr>\u003Cbr>\u003Cbr>\u003Cbr>Diffusion (pg 29) is the movement of    (liquids or gases) from an area of   concentration to\u003Cbr>an area of   er concentration\u003Cbr>\u003Cbr>Cell membranes are said to be partially permeable because…\u003Cbr>Tick/cross – what do they let through?\u003Cbr>Proteins water Starch\u003Cbr>Glucose Oxygen\u003Cbr>\u003Cbr>\u003Cbr>| \u003Cbr>\u003Cbr>Osmosis (pg 30) is the…\u003Cbr>Draw an arrow to show the net movement of water\u003Cbr>\u003Cbr>|  |  |  |  |  |\n|  |  |  | Active Transport (pg 32) is the movement of substances   their concentration   , ie from a   concentration to a   concentration. This requires an input of  \u003Cbr>Draw an example of active transport in plants and an example in animals (humans) |  |  |  |\n|  |  | \u003Cbr>Label the axes. Show where the potatoes have:\u003Cbr>A) Shrivelled B) No change C) Shrunken |  |  |  |  |\n| Investigating osmosis with potato chips-sequence method (pg 31)\u003Cbr>\u003Cbr>Blot the potato chips dry and measure their mass for the second time\u003Cbr>Leave them for 60 minutes\u003Cbr>Measure their initial mass and place them indifferent sugar solutions\u003Cbr>Draw a graph of mass change vs concentration\u003Cbr>Cut potatoes into equal size chips\u003Cbr>|  |  |  |  |  |  |\n\n\n| GCSE Biology Revision – Topic 1– CELL","cbCaihlSKS2dn150","https://ap.wps.com/l/cbCaihlSKS2dn150","pdf",812534,1,6,"English","en",105,"# Cells and Microscopes\n## Animal and plant cells\n## Prokaryotes and eukaryotes\n## Microscopes and magnification\n# Cell specialisation and stem cells\n## Differentiation and specialisation\n## Stem cells and applications\n## Arguments against stem cell use\n## Use in agriculture and gardening\n# Chromosomes and mitosis\n## Chromosomes, genes and the cell cycle\n## Stages of mitosis\n# Diffusion, osmosis and active transport\n## Diffusion and partially permeable membranes\n## Osmosis and investigating osmosis with potato chips\n## Active transport in plants and animals\n# Exchanging substances\n## Diffusion in lungs\n## Diffusion in the leaf\n## Diffusion in the gut","[{\"question\":\"How do you calculate magnification in microscope questions?\",\"answer\":\"Use the magnification relationship given in the revision notes, comparing a measured image size to the actual size. The example uses an egg cell image width to reach a specific magnification value.\"},{\"question\":\"What is the difference between prokaryotes and eukaryotes?\",\"answer\":\"The notes ask learners to explain the two terms and compare the features of each cell type. The distinction is treated as a key exam idea for Topic 1.\"},{\"question\":\"How are diffusion, osmosis and active transport different?\",\"answer\":\"Diffusion is movement of particles from a higher concentration to a lower concentration. Osmosis is diffusion of water across a partially permeable membrane. Active transport moves substances against the concentration gradient and requires an input of energy.\"}]","GCSE Biology Revision - Topic 1 - Cell Biology | PDF",1788602451,15,{"code":4,"msg":31,"data":32},"ok",{"site_id":24,"language":23,"slug":33,"title":13,"keywords":34,"description":14,"schema_data":35,"social_meta":85,"head_meta":87,"extra_data":89,"updated_unix":28},"gcse-biology-revision-topic-1-cell-biology","",{"@graph":36,"@context":84},[37,53,67],{"@type":38,"itemListElement":39},"BreadcrumbList",[40,44,48,51],{"item":41,"name":42,"@type":43,"position":20},"https://docshare.wps.com","Home","ListItem",{"item":45,"name":46,"@type":43,"position":47},"https://docshare.wps.com/document/","Document",2,{"item":49,"name":12,"@type":43,"position":50},"https://docshare.wps.com/document/exam/",3,{"item":52,"name":13,"@type":43,"position":11},"https://docshare.wps.com/document/gcse-biology-revision-topic-1-cell-biology/208106/",{"url":52,"name":13,"@type":54,"author":55,"headline":13,"publisher":57,"fileFormat":60,"inLanguage":23,"description":14,"dateModified":61,"datePublished":61,"encodingFormat":60,"isAccessibleForFree":62,"interactionStatistic":63},"DigitalDocument",{"name":9,"@type":56},"Person",{"url":41,"name":58,"@type":59},"DocShare","Organization","application/pdf","2026-09-05",true,{"@type":64,"interactionType":65,"userInteractionCount":4},"InteractionCounter",{"@type":66},"ViewAction",{"@type":68,"mainEntity":69},"FAQPage",[70,76,80],{"name":71,"@type":72,"acceptedAnswer":73},"How do you calculate magnification in microscope questions?","Question",{"text":74,"@type":75},"Use the magnification relationship given in the revision notes, comparing a measured image size to the actual size. 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