Homeostasis P4

Question 1

Where is testosterone produced and what does it do?

Answer 1

In the testes and it controls the development of male secondary sex characteristics

Question 2

Where is oestrogen produced and what does it do?

Answer 2

It is produced in the ovaries and controls development of female secondary sex characteristics

Question 3

What is the changes only boys experience during puberty?

Answer 3

The voice breaks, hair grows on face and body, body becomes more muscular and testes start to produce sperm cells

Question 4

What changes do both boys and girls experience in puberty?

Answer 4

Pubic hair grows, underarm hair grows and sexual organs grow and develop

Question 5

What changes do only girls experience during puberty?

Answer 5

The voice gradually deepens, hips get wider, breasts develop and ovaries start to release egg cells-menstruation starts

Question 6

How long does the menstrual cycle last?

Answer 6

Around 28 days

Question 7

What happens during the menstrual cycle?

Answer 7

The lining of the uterus prepared for pregnancy if implantation of the fertilise egg does not happen the lining is shed (menstruation)

Question 8

Where is FSH produced and what does it do?

Answer 8

In the pituitary gland and it causes an egg to mature in the ovary. It stimulates the ovaries to release oestrogen.

Question 9

What does oestrogen do?

Answer 9

Spots FSH being produced (so only one egg matures). Repairs, thickens and maintains uterus lining. Stimulates release of LH.

Question 10

Where is LH produced and what does it do?

Answer 10

In the pituitary gland and it triggers ovulation (the release of a mature egg)

Question 11

Where is progesterone produced and what does it do?

Answer 11

In the ovaries and it maintains the lining of the uterus during the middle part of the menstrual cycle and during pregnancy

Question 12

What does the oral contraceptive (‘ the pill’) contain and what does it do?

Answer 12

It contains oestrogen or progesterone and they inhibit the production of FSH and eggs cannot mature

Question 13

What are the benefits of oral contraceptive?

Answer 13

It is 99% effective if taken correctly and it can reduce risks of certain cancers

Question 14

What are the risks of oral contraceptive?

Answer 14

Changes in weight mood and blood pressure due to high oestrogen levels

Question 15

What do physical barriers such as condoms and diaphragms do?

Answer 15

Prevent the sperm reaching an egg

Question 16

What does intrauterine devices (IUD) also known as coil do

Answer 16

Prevent the implantation of an embryo release of a hormone

Question 17

What Do spermicidal agency do?

Answer 17

They kill or disable sperm

Question 18

What is an example of surgical methods of female a male sterilisation

Answer 18

Vasectomy where the ducts are cut and tied

Question 19

What are benefits of non-hormonal contraception?

Answer 19

Condoms are quick and easy to use. IUDs have a small risk of causing an ectopic pregnancy and can remain in position for up to 10 years. spermicidal agents can be added to other physical barriers such as condoms abstaining can be used successfully.

Question 20

What are risks of non-hormonal contraception?

Answer 20

Condom can tear or rip. Diaphragm need to be put just before sex and left in several hours afterwards. IUDs Need to be fitted by a health professional. Some people can have allergic reactions to spermicidal agents. abstaining may not be used accurately. Surgical methods cannot be reversed and are considered permanent