Control In Human Body

Question 1

Water

Answer 1

Leaves body via lungs skin and urine

Question 2

Iron

Answer 2

Lost via sweat and urine

Question 3

Temperatures

Answer 3

Maintain temperature which enzymes work best

Question 4

Blood sugar

Answer 4

Provide consistent supply of energy

Question 5

Hormones

Answer 5

Hormones secreted by glands and transported to target organs via bloodstream

Question 6

Hormones in women

Answer 6

Regulate functions of hormone and cell.

Change thickness in lining and release egg controlled by hormones decreased by pituitary glands and ovaries

Question 7

Hormone in release of egg

Answer 7

Fsh secreted by pituitary gland and egg mature in overy. Stimulates Oestrogen
Oestrogen secreted by ovaries and inhibit production of fsh
Lh stimulates release of egg

Question 8

Hormone control fertility inhibit Fsh so no eggs mature

Answer 8

Oral contraceptives contain oestrogen and progesterone to inhibit egg mature
Birth control pills contain oestrogen which cause side effects
Much lower oestrogen or only progesterone now leads to fewer side effects

Question 9

Hormones in fertility Fsh and lh

Answer 9

Giving Fsh and lh in fertility drug while Fsh is too lo to stimulate eggs to mature eg Ivf

Question 10

Ivf

Answer 10

Gives Fsh and lh to stimulate eggs to mature which are collected and fertilise by sperm of father
Develop into embryos
When tiny balls of cells one or two embryo is inserted into mother