Biology Y11 Paper 2 - Topic 5 Homeostasis and Response

Sep 5, 2026

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GCSE Biology revision sheet focused on Topic 5: Homeostasis and Response for Biology Y11 Paper 2. 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.

LanguageEnglish

CategoryExam

FormatPDF

Pages26

Reading Time1 h 6 min

AccessFree to download

Topic 5 - Homeostasis and Response

Homeostasis and negative feedback

Receptors, effectors, receptors and the nervous system

Synapses and reflexes

Measuring response time

Endocrine system and hormones

Hormone control of blood sugar and diabetes

Menstrual cycle and reproductive hormones

Controlling fertility and increasing fertility

9-1 GCSE Combined Science Knowledge Organiser Biology Y11 paper 2 Topic 5-Homeostasis and Response pg 106-122 Topic 6-Inheritance and evolution pg 125-154 Topic 7 – Ecology pg 155-176 GCSE Biology Revision – Topic 5-homeostasis and response | (Pg 106)
Explain what homeostasis is maintaining?
Name 2 automatic control systems in your body that regulate your internal environment?
What do these 2 systems maintain (try and keep the same)? | | Can you explain what negative feedback is?(pg 106) | | --- | --- | --- | | Receptors and Effectors (pg 107)
1. What do receptors do?
2. Name at least 2 receptors?
3. Name the organs the receptors belong too?
4. Name 2 effectors? | | | The nervous system (p107) Draw a human body and label the different parts of the nervous system. Describe briefly what each part does? GCSE Biology Revision –Topic 5-homeostasis and response Draw and explain what a synapse is? (pg 108) Looking at the diagram above can you give an example of a stimulus leading to a response? (pg108) GCSE Biology Revision – Topic 5-homeostasis and response WHAT IS A REFLEX? (pg109) Give an example of a reflex? What is the passage of information ina reflex called? Bullet point below what happens when our receptors in our skin feel the stimulus of a bee sting? (pg109) Label the diagram above-the green parts are the different neurones. (pg109) GCSE Biology Revision –Topic 5-homeostasis and response 1. How can you measure how long it takes to respond to stimuli? (page 110) 2. Why is a computer better at measuring this? | The Endocrine system (pg 112 and 113)
1. What are hormones?
2. How are they carried around the body?
3. Where are they produced?
4. Complete the table opposite.
5. List 3 differences between hormones and Nerves?
6. How can you tell that a hormonal response lasts for a longer time than the nervous response?
7. Why does the nervous response need to be quick? | Gland Location Function | | --- | --- | GCSE Biology Revision – Topic 5-homeostasis and response (Pg 114) What 2 hormones control Blood sugar levels? How does glucose get into our blood from the gut? Where does glucose get stored? Is glucose stored as glucose? What organ monitors and controls the level of glucose? What is this cycle called? Explain, with drawings what happens when Glucoses levels are too high and too low…. Too High Too Low GCSE Biology Revision – Topic 5-homeostasis and response Diabetes (pg115) What is diabetes? In the table below, write down 5 facts about each type of diabetes… | Type 1 Diabetes | Type 2 diabetes | | --- | --- | | | | | | | | | | | | | | | | GCSE Biology Revision – Topic 5-homeostasis and response The Menstrual Cycle (pg 117-118) Explain using bullet points, what happens between day 1 and 28? What happens after day 28? Hormones…(pg 117-118) 1. What is the main reproductive hormone in men? 2. What is this hormones job? 3. List the 4 hormones that control the menstrual cycle in women and explain what their role is (use table below) | Hormone… | It’s role… | | --- | --- | | | | | | | | | | | | | GCSE Biology Revision –Topic 5-homeostasis and response Controlling fertility (pg 119) How can Oestrogen and progesterone help in reducing fertility.. (hint they are used in the pill) What are the following? •The contraceptive patch? •The contraceptive implant •The contraceptive injection? •The intrauterine device? GCSE Biology Revision – Topic 5-homeostasis and response Controlling fertility (pg120) Barriers explain what the barrier method is and give 3 examples? Sterilisation What does this involve? Natural method What does this method mean, and why might it not be effective? Abstinence How does this method work? Increasing Fertility (pg 120) 1. How can the hormones FSH and LH increase fertility? 2. What are the pros for this? 3. What are

FAQs

What is homeostasis and what does it maintain in the body?

Homeostasis maintains the internal environment by keeping certain conditions stable. It keeps variables within a suitable range so body processes work effectively.

How do negative feedback mechanisms help the body respond to changes?

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.

What hormones control the menstrual cycle and how are they involved?

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.

Sep 5, 2026

Upload by Liam