Hormones GCSE

All the hormones required for Edexcel iGCSE - NOTE, flashcards where it asks for the ROLE of a hormone want a general answer, questions about the EFFECTS want a specific answer with reference to biological mechanisms.

Source of adrenaline

Source of adrenaline

Adrenal gland (top of kidneys)

Source of Insulin

Pancreas

Source of testosterone

Testes

Source of progesterone

Ovaries

Source of Oestro[gen

Ovaries

[PAPER 2] Source of ADH (anti-diuretic hormone)

Pituitary gland

[PAPER 2] Source of FSH (Follicle Stimulating Hormone)

Pituitary gland

[PAPER 2] Source of LH

Pituitary gland

Role of Adrenaline

Readies the body for a “fight or flight” reponse

Role of Insulin

Helps control blood sugar level

Role of Testosterone

Main male sex hormone

Role of progesterone

Supports pregnancy

Role of Oestrogen

Main female sex hormone

[PAPER 2] Role of ADH (anti-diuretic hormone)

Control water content of blood

[PAPER 2] Role of FSH

Female sex hormone

[PAPER 2] Role of LH

Female sex hormone

Effects of adrenaline

Increases heart rate, blood flow to muscles and blood sugar level

Effects of Insulin

Stimulates the liver to turn glucose into glycogen for storage

Effects of Testosterone

Promotes male secondary sexual characteristics, e.g. facial hair

Effect of Progesterone

Maintain the lining of the uterus

Effect of Oestrogen

Controls the menstrual cycle and promotes female secondary sexual characteristics, e.g. widening of the hips

[PAPER 2] Effect of ADH (anti-diuretic hormone)

Increases the permeability of the kidney tubules to water

[PAPER 2] Effects of FSH

Causes an egg to mature in an ovary. Stimulates the ovaries to produce oestrogen

[PAPER 2] Effect of LH

Stimulates the release of an egg from an ovary