GCSE level School Biology: Homeostasis: Endocrine system, adrenaline & thyroxine hormones
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INDEX of GCSE level exam notes on HORMONES and the ENDOCRINE SYSTEM Introduction to the endocrine system of hormones including homeostasis and the function of the hormones adrenaline and thyroxine including explaining negative feedback systems (other hormones are dealt with on other pages - see below the sub-index) [Author © Dr Phil Brown PhD: Doc Brown's biology exam revision notes suitable for students of UK IGCSE & GCSE level biology courses & ~ US grades 9-10 biology [endocrine page updated Mar 5th 2026 *] [email doc b: comment? query?] * [privacy-policies-disclaimer] * ]SEARCH doc b's website] Sub-index for this section on hormones and endocrine system (1) What are hormones? What do they do? (2) Endocrine system: Examples of hormones and which gland or organ produces them (3) A comparison of the nervous system and the endocrine hormone system (4) The function of the hormone adrenaline (5) The function of the hormone thyroxine See also (6) to (10) in other sections of the website involving homeostasis and hormones
(6) Homeostasis: introduction to how it functions (negative feedback systems explained) (7) Homeostasis: control of blood sugar level - insulin and diabetes (8) Homeostasis: osmoregulation, ADH, water/urea/ion control, kidney function, dialysis (9) Hormone systems: menstrual cycle including contraception and fertility treatments (10) Hormone control of plant growth and uses of plant hormones WHERE NEXT? Find your GCSE science course for more help links to revision notes This is a BIG website, you need to take time to explore it [Website Search Box] General HUMAN BIOLOGY revision notes Introduction to the organisation of cells => tissues => organs => organ systems (e.g. in humans) Examples of surfaces for the exchange of substances in animal organisms Homeostasis - introduction to how it functions (negative feedback systems explained) Homeostasis - control of blood sugar level - insulin and diabetes Homeostasis - thermoregulation, control of temperature The brain - what the different parts do and the dangers if damaged An introduction to the nervous system including the reflex arc Hormone systems - Introduction to the endocrine system - adrenaline & thyroxine hormones Hormone systems - menstrual cycle, contraception, fertility treatments Respiration - aerobic and anaerobic in plants and animals Keeping healthy - communicable diseases - pathogen infections Keeping healthy - non-communicable diseases - risk factors for e.g. cancers Keeping healthy - diet and exercise
Food tests for reducing sugars, starch, proteins and lipids The eye - structure and function - correction of vision defects Optics - lens types (convex, concave, uses), experiments, ray diagrams, correction of eye defects (gcse physics) HOME PAGE of Doc Brown's Science UK KS3 Science Quizzes for KS3 science students aged ~11-14, ~US grades 6, 7 and 8 Biology * Chemistry * Physics UK GCSE level students aged ~14-16, ~US grades 9-10 Advanced Level Chemistry for pre-university age ~16-18 ~US grades 11-12, K12 Honors Explaining importance of endocrine system in GCSE level biology, What you need to know about endocrine system for GCSE level biology, Explaining use of endocrine system knowledge in GCSE level biology, Examples of endocrine system explained when studying GCSE level biology, What is the significance of endocrine system in GCSE level biology, describing explaining theory of endocrine system when studying GCSE level biology, exam revision notes for endocrine system, online help for understanding endocrine system in GCSE biology, what do I need to learn about endocrine system? what do I need to know about endocrine system for GCSE biology exams, how to prepare for questions on endocrine system in GCSE biology examination? endocrine system for syllabus-specifications for students taking the IGCSE/GCSE level biology examinations, summary revision notes key points on endocrine system for students studying AQA igcse/gcse biology notes on endocrine system, Edexcel gcse biology notes on endocrine system, OCR 21st century GCSE biology notes on endocrine system, OCR gateway GCSE biology notes on endocrine system, WJEC gcse biology notes on endocrine system, CCEA gcse biology notes on endocrine system, CIE Cambridge igcse biology, notes on endocrine system useful for US grade 9-10 biology
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