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13 June 2026

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A complete revision and exam practice pack for SB7g Thermoregulation, covering the full Pearson Edexcel GCSE Biology (9–1) specification for this topic (B7.10B, B7.11B, B7.12B).

This pack contains three components:

Topic Mastery Sheet (PDF) - a comprehensive reference covering the importance of temperature control, the role of the hypothalamus, skin structure, and all four thermoregulatory mechanisms. The importance of maintaining 37°C is explained in terms of enzyme optimum temperature - a link the specification requires students to make explicitly. The hypothalamus is described as a central thermostat that continuously monitors blood temperature and sends nerve impulses to effectors in the skin and muscles. Skin structure is presented with the dermis and epidermis labelled separately: the dermis contains blood capillaries, sweat glands, temperature receptors and erector muscles; the epidermis contains hair follicles.

Student Exam Practice Sheet (PDF + DOCX) - six exam-style questions. Q1 asks students to explain why stable core body temperature is important in terms of enzyme activity (2 marks). Q2 asks them to explain how body hair helps regulate temperature on a cold day - requiring both that hair stands erect and that it traps an insulating layer of air (2 marks). Q3 is the cloze exercise from the Edexcel standard tier mark scheme: “Shivering takes place when** cells contract rapidly. Contraction warms the body because it releases energy in the form of from respiration” (muscle, heat, aerobic - 3 marks). Q4 is the four-mark Higher Tier question using the Edexcel scenario of skin surface temperature at 15°C and core temperature at 36.5°C, requiring a description of vasoconstriction including all four marking points. Q5 asks students to explain how sweating reduces body temperature (2 marks). Q6 asks students to describe the role of the hypothalamus in thermoregulation (2 marks).

Teacher Answer Key (PDF + DOCX) - a full tick-point mark scheme verified against the Edexcel mark scheme. The Q2 answer requires both marks to be earned: “hair stands erect (1) AND traps a layer of insulating air so less heat is lost (1).” The Q3 cloze answers are muscle, heat and aerobic - the mark scheme explicitly excludes “kinetic energy” for the second blank. The Q4 mark scheme requires the word “vasoconstriction” for the first mark; marks 2–4 follow the pathway: arterioles narrow → less blood near skin surface → less heat lost to environment.

Content assessed in Edexcel GCSE Biology Paper 1 (1BI0). B-tier Separate Science content.

© BoxsiderResources. Licensed for classroom use by the purchasing teacher. Not for redistribution or resale.

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A bundle is a package of resources grouped together to teach a particular topic, or a series of lessons, in one place.

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SB7 Animal Coordination, Control and Homeostasis | Complete Topic Mastery Bundle | Edexcel GCSE Biology (9–1) Separate Science

A complete revision and exam practice bundle covering the full **SB7 Animal Coordination, Control and Homeostasis** unit of the Pearson Edexcel GCSE Biology (9-1) Separate Science specification. This bundle brings together all 9 individual topic packs into one discounted resource, giving teachers and students everything they need to master this unit from first teaching through to final exam preparation. Each pack in this bundle has been built directly from the official Edexcel specification, teaching and learning materials, and mark schemes. Every answer has been verified against the Edexcel mark scheme. Every question is written in authentic Edexcel exam style with correct command words, mark allocations and answer space. This bundle contains 9 complete topic packs: **SB7a Hormones**: Covers where hormones are produced, how they are transported through the bloodstream, the production and release of hormones from the pituitary gland, thyroid gland, pancreas, adrenal glands, ovaries and testes, and the identification of target organs. **SB7b Hormonal Control of Metabolic Rate (H)**: Covers adrenalin and the fight-or-flight response, the definition of metabolic rate, the effect of thyroxine on metabolic rate, and how negative feedback controls thyroxine production and why this mechanism is essential. **SB7c The Menstrual Cycle**: Covers the events of the menstrual cycle, the roles of oestrogen and progesterone, barrier and hormonal methods of contraception, and comparative evaluation of both. **SB7d Hormones and the Menstrual Cycle (H)**: Covers the interactions of oestrogen, progesterone, FSH and LH across the cycle, effects on the uterus wall, ovulation and menstruation, Assisted Reproductive Technology (ART), clomifene therapy, and how hormones are used in IVF treatment. **SB7e Control of Blood Glucose**: Covers the definition of homeostasis, why a constant internal environment is important, the role of insulin in blood glucose regulation, the role of glucagon (H), and the causes and management of type 1 diabetes. **SB7f Type 2 Diabetes**: Covers the causes and control of type 2 diabetes, the correlation between body mass and type 2 diabetes, BMI and waist-to-hip ratio as measures of body mass, and evaluation of the evidence for this correlation. **SB7g Thermoregulation**: Covers the definition of thermoregulation, the importance of temperature regulation for enzyme activity, the roles of the skin (blood flow in dermis, sweating, hair erection), the hypothalamus, muscles (shivering), and vasodilation/vasoconstriction (H). **SB7h Osmoregulation**: Covers the structure of the urinary system, urea formation from excess amino acids, the definition of osmoregulation, why it is important, and how kidney failure is treated by dialysis and organ donation. **SB7i The Kidneys**: Covers the structure of the nephron, the composition of urine, how the nephron performs ultrafiltration, selective reabsorption of glucose and water, and the role of ADH in controlling body water content (H). Every pack in this bundle contains five files. A **Topic Mastery Sheet** (PDF) - a comprehensive reference covering the full specification for that subtopic. Each sheet includes full specification coverage with spec reference codes, all key definitions and mechanisms explained in depth, worked examples using actual Edexcel exam figures, comparison tables and process diagrams, common errors explicitly flagged with the correct exam language, and a stretch and challenge section for students targeting Grade 8–9. A **Student Exam Practice Sheet** (PDF and DOCX) - five to seven exam-style questions escalating from recall through to extended writing. Questions use correct Edexcel command words, include mark allocations, and are sized with appropriate answer space. The DOCX version allows teachers to adapt questions for their class. A **Teacher Answer Key** (PDF and DOCX) - a full tick-point mark scheme verified against the official Edexcel mark scheme. Each answer includes the exact wording required, examiner notes on what is and is not accepted, full working for all calculation questions, and level descriptors for any extended writing questions. All resources are designed for whole-class use in mixed ability settings. Higher tier content is clearly tagged throughout. Questions escalate from foundation recall to higher extended writing within every sheet, so every student is working towards excellence without anyone being left behind or held back. Suitable for end-of-topic revision lessons, independent study, homework, intervention sessions, exam preparation in Year 10 and Year 11, cover lessons, and as a take-home revision pack for students. Teachers can project the Topic Mastery Sheet, set the Student Sheet as classwork or homework, and mark against the Answer Key without any additional preparation. Buying **this bundle saves approximately 40%** compared to purchasing each pack individually. All 45 files are included in a single download. ©BoxsiderResources. All resources are licensed for single classroom use by the purchasing teacher. Not for redistribution or resale.

£26.95

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