Unit 2 - The Biology of Controlling Fertility

Question 1

What are two reasons a woman may fail to ovulate?

Answer 1

1 - Failure to produce (Or small production of) FSH

2 - Failure to produce (Or small production of) LH

Question 2

State two ways in which ovulation can be stimulated…

Answer 2

1 - Drugs that mine hormones FSH and LH

2 - Drugs that prevent the negative feedback of Oestrogen on FSH and LH

Question 3

What is meant by the term ‘Super Ovulation’?

Answer 3

When a women ovulated and two or more eggs are released into the oviducts. This can lead to things such as fraternal twins and triplets etc.

Question 4

Name and briefly describe the physical barriers used as contraceptives…

Answer 4

Condom - A rubber sheath used by the man to stop sperm entering the women’s cervix
___.

Question 5

Name and briefly describe the chemical barriers used as contraceptives…

Answer 5

___ - Contain ovarian hormones which cause -ve feedback on FSH and LH, which leads to failure of maturation of the follicle and ovulation.
Morning After Pill - Prevents implantation of the zygote.
___ - ___.