Hormones

Question 1

Adrenaline

Answer 1

1) Source: adrenal glands
2) Role: prepares the body for a ‘fight or flight’ response
3) Increases heart rate, blood flow, and sugar levels

Question 2

Insulin

Answer 2

1) Source: pancreas
2) Role: helps control blood sugar levels
3) Stimulates the liver to turn glucose into glycogen for storage.

Question 3

Testosterone

Answer 3

1) Source: testes
2) Role: main male sex hormone
3) Promotes secondary sexual characteristics in men e.g. facial hair

Question 4

Progesterone

Answer 4

1) Source: ovaries
2) Role: supports pregnancy
3) Helps maintain the uterus lining

Question 5

Oestrogen

Answer 5

1) Source: ovaries
2) Role: main female sex hormone
3) Controls the menstrual cycle and promotes secondary sexual characteristics in women

Question 6

ADH

Answer 6

1) Source: pituitary gland (brain)
2) Role: controls water content
3) Increases the permeability of the kidney to water

Question 7

FSH

Answer 7

1) Source: pituitary gland
2) Role: female sex hormone
3) Stimulates the ovaries to produce oestrogen and causes the egg to mature

Question 8

LH

Answer 8

1) Source: pituitary gland
2) Role: female sex hormone
3) Stimulates the release of an egg from an ovary

Question 9

3 differences between hormones and nerves

Answer 9

1) Nerves are fast, hormones are slow.
2) Nerves act for a short time, hormones act for a long time.
3) Nerves act on a precise area, hormones act in a more general area.