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Covers what homeostasis maintains and how negative feedback supports internal balance, linking receptors, effectors, the nervous system, synapses and reflex actions. Includes endocrine system study of hormones, hormone transport, glands, blood glucose control, and conditions such as diabetes. Extends to the menstrual cycle, controlling fertility options, contraception methods, and factors that can increase fertility.","9-1 GCSE Combined Science Knowledge Organiser  \nBiology Y11 paper 2  \nTopic 5-Homeostasis and Response pg 106-122 Topic 6-Inheritance and evolution pg 125-154  \nTopic 7 – Ecology pg 155-176  \nGCSE Biology Revision – Topic 5-homeostasis and response  \n\n| (Pg 106)\u003Cbr>Explain what homeostasis is maintaining?\u003Cbr>Name 2 automatic control systems in your body that regulate your internal environment?\u003Cbr>What do these 2 systems maintain (try and keep the same)? |  | Can you explain what negative feedback is?(pg 106) |\n| --- | --- | --- |\n| Receptors and Effectors (pg 107)\u003Cbr>1.  What do receptors do?\u003Cbr>2. Name at least 2 receptors?\u003Cbr>3. Name the organs the receptors belong too?\u003Cbr>4. Name 2 effectors? |  |  |\n\nThe nervous system (p107)  \nDraw a human body and label the different parts of the nervous system.  \nDescribe briefly what each part does?  \nGCSE Biology Revision –Topic 5-homeostasis and response  \nDraw and explain what a synapse is? (pg 108)  \nLooking at the diagram above can you give an example of a stimulus leading to a response? (pg108)  \nGCSE Biology Revision – Topic 5-homeostasis and response  \nWHAT IS A REFLEX? (pg109)  \nGive an example of a reflex?  \nWhat is the passage of information ina reflex called?  \nBullet point below what happens when our receptors in our skin feel the stimulus of a bee sting? (pg109)  \nLabel the diagram above-the green parts are the  \ndifferent neurones. (pg109)  \nGCSE Biology Revision –Topic 5-homeostasis and response  \n1. How can you measure how long it takes to respond to stimuli?  \n(page 110)  \n2. Why is a computer better at measuring this?  \n| The Endocrine system (pg 112 and 113)\u003Cbr>1. What are hormones?\u003Cbr>2. How are they carried around the body?\u003Cbr>3. Where are they produced?\u003Cbr>4. Complete the table opposite.\u003Cbr>5. List 3 differences between hormones and Nerves?\u003Cbr>6. How can you tell that a hormonal response lasts for a longer time than the nervous response?\u003Cbr>7. Why does the nervous response need to be quick? | Gland Location Function |\n| --- | --- |\n\nGCSE Biology Revision – Topic 5-homeostasis and response  \n(Pg 114)  \nWhat 2 hormones control Blood sugar levels?  \nHow does glucose get into our blood from the gut?  \nWhere does glucose get stored?  \nIs glucose stored as glucose?  \nWhat organ monitors and controls the level of glucose?  \nWhat is this cycle called?  \nExplain, with drawings what happens when Glucoses levels are too high and too low….  \nToo High  \nToo Low  \nGCSE Biology Revision – Topic 5-homeostasis and response  \nDiabetes (pg115) What is diabetes?  \nIn the table below, write down 5 facts about each type of diabetes…  \n\n| Type 1 Diabetes | Type 2 diabetes |\n| --- | --- |\n|  |  |\n|  |  |\n|  |  |\n|  |  |\n|  |  |\n\nGCSE Biology Revision – Topic 5-homeostasis and response  \nThe Menstrual Cycle (pg 117-118)  \nExplain using bullet points, what happens between day 1 and 28?  \nWhat happens after day 28?  \nHormones…(pg 117-118)  \n1. What is the main reproductive hormone in men?  \n2. What is this hormones job?  \n3. List the 4 hormones that control the menstrual cycle in women and explain what their role is   (use table below)  \n\n| Hormone… | It’s role… |\n| --- | --- |\n|  |  |\n|  |  |\n|  |  |\n|  |  |\n\nGCSE Biology Revision –Topic 5-homeostasis and response  \nControlling fertility   (pg 119)  \nHow can Oestrogen and progesterone help in reducing fertility.. (hint they are used in the pill)  \nWhat are the following?  \n•The contraceptive patch?  \n•The contraceptive implant  \n•The contraceptive injection?  \n•The intrauterine device?  \nGCSE Biology Revision – Topic 5-homeostasis and response  \nControlling fertility (pg120)  \nBarriers   explain what the barrier method is and give 3 examples?  \nSterilisation   What does this involve?  \nNatural method   What does this method mean, and why might it not be effective?  \nAbstinence   How does this method work?  \nIncreasing Fertility (pg 120)  \n1. How can the hormones FSH and LH increase fertility?  \n2. What are the pros for this?  \n3. What are","cbCaigBmHEp11f1v","https://ap.wps.com/l/cbCaigBmHEp11f1v","pdf",1185553,1,26,"English","en",105,"# Topic 5 - Homeostasis and Response\n## Homeostasis and negative feedback\n## Receptors, effectors, receptors and the nervous system\n## Synapses and reflexes\n## Measuring response time\n## Endocrine system and hormones\n## Hormone control of blood sugar and diabetes\n## Menstrual cycle and reproductive hormones\n## Controlling fertility and increasing fertility","[{\"question\":\"What is homeostasis and what does it maintain in the body?\",\"answer\":\"Homeostasis maintains the internal environment by keeping certain conditions stable. It keeps variables within a suitable range so body processes work effectively.\"},{\"question\":\"How do negative feedback mechanisms help the body respond to changes?\",\"answer\":\"Negative feedback detects a change in internal conditions, then triggers responses that reverse that change. This helps bring the variable back toward the original set point.\"},{\"question\":\"What hormones control the menstrual cycle and how are they involved?\",\"answer\":\"The revision sheet focuses on several key hormones that control the menstrual cycle, including their roles across the 28-day cycle. It asks learners to explain day-by-day changes and the hormonal control after day 28.\"}]","Biology Y11 Paper 2 - Topic 5 Homeostasis and Response | PDF",1788605155,66,{"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},"biology-y11-paper-2-topic-5-homeostasis-and-response","",{"@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/biology-y11-paper-2-topic-5-homeostasis-and-response/208685/",{"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},"What is homeostasis and what does it maintain in the body?","Question",{"text":75,"@type":76},"Homeostasis maintains the internal environment by keeping certain conditions stable. 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