GCSE level School biology: Human sexual reproduction, menstrual cycle, pregnancy fertility control, contraception, IVF

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The human male and female sexual reproduction systems - hormone systems - menstrual cycle - pregnancy and importance of good health - controlling fertility - use of hormones - methods of contraception - IVF fertility treatments

Doc Brown's biology exam revision study notes

 This page will answer many questions e.g.

 What are hormones?  How does the menstrual cycle work?  How does In Vitro Fertilisation' (IVF) work?  How can hormones be used to control fertility?  What are FSH and LH hormones and what do they do?  Describe various methods of contraception and their effectiveness.


 Sub-index for this section on human reproduction

(1) Hormones, puberty and the female menstrual cycle

(2) Human male & female sexual reproduction systems, development of secondary sexual characteristics

(3) Pregnancy, birth, breast/formula milk and health factors

(4) Using hormones to control female fertility - contraception

(5) Non-hormonal methods of preventing pregnancy - contraception

(6) Contraceptive evaluation - comparing methods of contraception

(7) Methods of increasing fertility - IVF and increasing the chance of pregnancy

See also

Communicable diseases (including sexually transmitted diseases/infections)

Hormone system - Introduction to the endocrine system

Hormone control of plant growth and uses of plant hormones


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See also Hormone system - Introduction to the endocrine system

For plants see Hormone control of plant growth and uses of plant hormones


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  

See also Enzymes - section on digestion and synthesis 

The human circulatory system - heart, lungs, blood, blood vessels, causes/treatment of cardiovascular disease

Homeostasis - introduction to how it functions (negative feedback systems explained) 

Homeostasis - control of blood sugar level - insulin and diabetes 

Homeostasis - osmoregulation, ADH, water control, urea and ion concentrations and kidney function, dialysis

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 

Keeping healthy - defence against pathogens, infectious diseases, vaccination, drugs, monoclonal antibodies

See also Culturing microorganisms like bacteria - testing antibiotics/antiseptics

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)


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