[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"doc-detail-208033-en":3,"doc-seo-208033-105":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},208033,4810365810221,"Aurora","https://ap-avatar.wpscdn.com/davatar_155a257f0dc6eb9ab79c44ca47cae57d",4,"Exam","GCSE AQA Biology Core Knowledge - Practice Questions and Answers","A collection of GCSE AQA Biology core knowledge questions with direct model answers covering microscopes, cell structure, and transport processes. Topics include magnification and resolving power, key parts of eukaryotic and prokaryotic cells, diffusion, osmosis, and active transport with concentration and membrane concepts. Additional coverage addresses the cell cycle and mitosis, chromosomes, stem cells, cloning in plants, and medical uses and risks, followed by organization and digestive system fundamentals.","GCSE AQA Biology core knowledge  \nMr D Hunter – [dhunter7wru@nsix.org.uk](dhunter7wru@nsix.org.uk)  \nMrs S Watkins – [swatkins8nrx@nsix.org.uk](swatkins8nrx@nsix.org.uk)  \nBold questions and answers including B12 are for separate science only.  \n| B1 Cell structure and transport |  |\n| --- | --- |\n| Question | Answer |\n| 1. How much can a light microscope magnify by? | X2000 |\n| 2. How much can an electron microscope magnify by? | X2,000,000 |\n| 3. What is resolving power? | How much detail an image has |\n| 4. What resolving power can a light microscope have? | 200nm |\n| 5. What resolving power can an electron microscope have? | 0.2nm |\n| 6. How do you calculate magnification? | Magnification = size of imagesize of real object |\n| 7. What features do animal cells contain? | A nucleus, cytoplasm, cell membrane, mitochondria, ribosomes |\n| 8. What do ALL plant and algae cells contain along with the features of an animal cell? | A cellulose cell wall |\n| 9. What do all plant cells contain that animal cells do not? | Chloroplasts and a permanent vacuole |\n| 10. What is the function of the nucleus? | To control the activity of the cell and to contain all the genetic material (DNA) |\n| 11. What is the function of the cytoplasm? | Where a lot of chemical reactions take place |\n| 12. What is the function of the cell membrane? | To control what substances move in and out of the\u003Cbr>cell |\n| 13. What is the function of the mitochondria? | The site of aerobic respiration |\n| 14. What is the function of the ribosomes? | Where proteins are made (protein synthesis) |\n| 15. What is the function of the cell wall? | To provide strength and support |\n| 16. What is the function of the chloroplasts? | They contain chlorophyll which absorbs light for photosynthesis |\n| 17. What is the function of the permanent vacuole? | To store cell sap and keeps the cell rigid |\n| 18. What do all eukaryotic cells have? | A nucleus containing genetic material |\n| 19. What do prokaryotic cells have? | Genetic material loose in the cell with no nucleus |\n| 20. Are bacteria eukaryotes or prokaryotes? | Prokaryotes |\n\n| B1 Cell structure and transport |  |\n| --- | --- |\n| Question | Answer |\n| 21. Which are larger? Eukaryotic cells or prokaryotic cells | Eukaryotic cells |\n| 22. What is cell differentiation? | When cells undergo change to become specisalised |\n| 23. What cell is specialised to carry electrical impulses? | Nerve cells |\n| 24. How is it specialised? | They have lots of dendrites to connect to other cells and a long axon with synapses at the end to pass messages on |\n| 25. Define diffusion | Diffusion is the spreading out of substances from an area of high concentration to an area of low concentration, down a concentration gradient |\n| 26. What can affect the rate of diffusion? | Temperature, concentration difference, surface area and distance to travel |\n| 27. Where does diffusion occur? | Gases in the lungs to the blood in the alveoli, gases in leaves, glucose into cells, urea out of cells |\n| 28. What is osmosis? | The movement of water from a dilute solution to a concentrated solution through a partially permeable membrane |\n| 29. What does isotonic mean? | A solution that contains the same concentration asthe cell contents |\n| 30. What does hypotonic mean? | A solution that is less concentrated than the cell\u003Cbr>contents |\n| 31. What does hypertonic mean? | A solution that is more concentrated than the cell\u003Cbr>contents |\n| 32. What is active transport? | Active transport is where substances move from amore dilute solution to a more concentrated solution, against the concentration gradient |\n| 33. Where does active transport occur? | Getting mineral ions into root hair cells and moving glucose from the intestine into your blood |\n\nB2 Cell division  \n\n| Question | Answer |\n| --- | --- |\n| 1. Where are chromosomes found? | In the nucleus of cells |\n| 2. How are chromosomes arranged? | In pairs |\n| 3. How many chromosomes do humans have in their body ce","cbCaiinOqT2rg9eg","https://ap.wps.com/l/cbCaiinOqT2rg9eg","pdf",1204183,1,33,"English","en",105,"# B1 Cell structure and transport\n## Magnification and resolving power\n## Cell structure: animal vs plant and eukaryotic vs prokaryotic\n## Diffusion, osmosis, isotonic/hypotonic/hypertonic and active transport\n# B2 Cell division\n## Cell cycle and mitosis basics\n## Stem cells, differentiation, cloning and zygotes\n## Risks and objections to stem cell therapy\n# B3 Organisation and the digestive system\n## Tissue definition (intro)","[{\"question\":\"How do you calculate magnification?\",\"answer\":\"Use the formula magnification = size of image / size of real object.\"},{\"question\":\"What is resolving power and how do microscope types compare?\",\"answer\":\"Resolving power is how much detail an image has. A light microscope can resolve about 200 nm, while an electron microscope can resolve about 0.2 nm.\"},{\"question\":\"What is the difference between diffusion, osmosis, and active transport?\",\"answer\":\"Diffusion is the spreading from high to low concentration down a gradient. Osmosis is water moving from dilute to concentrated solution through a partially permeable membrane. Active transport moves substances against the concentration gradient and requires energy.\"}]","GCSE AQA Biology Core Knowledge - Practice Questions and Answers | PDF",1788602234,83,{"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":86,"head_meta":88,"extra_data":90,"updated_unix":28},"gcse-aqa-biology-core-knowledge-practice-questions-and-answers","",{"@graph":36,"@context":85},[37,53,68],{"@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-aqa-biology-core-knowledge-practice-questions-and-answers/208033/",{"url":52,"name":13,"@type":54,"author":55,"headline":13,"publisher":57,"fileFormat":60,"inLanguage":23,"description":14,"dateModified":61,"datePublished":62,"encodingFormat":60,"isAccessibleForFree":63,"interactionStatistic":64},"DigitalDocument",{"name":9,"@type":56},"Person",{"url":41,"name":58,"@type":59},"DocShare","Organization","application/pdf","2026-09-06","2026-09-05",true,{"@type":65,"interactionType":66,"userInteractionCount":20},"InteractionCounter",{"@type":67},"ViewAction",{"@type":69,"mainEntity":70},"FAQPage",[71,77,81],{"name":72,"@type":73,"acceptedAnswer":74},"How do you calculate magnification?","Question",{"text":75,"@type":76},"Use the formula magnification = size of image / size of real object.","Answer",{"name":78,"@type":73,"acceptedAnswer":79},"What is resolving power and how do microscope types compare?",{"text":80,"@type":76},"Resolving power is how much detail an image has. A light microscope can resolve about 200 nm, while an electron microscope can resolve about 0.2 nm.",{"name":82,"@type":73,"acceptedAnswer":83},"What is the difference between diffusion, osmosis, and active transport?",{"text":84,"@type":76},"Diffusion is the spreading from high to low concentration down a gradient. Osmosis is water moving from dilute to concentrated solution through a partially permeable membrane. 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