UNIT 2 past paper questions

Question 1

what is the onset of puberty in males triggered by a secretion from

Answer 1

hypothalamus

Question 2

explain the purpose of a control

Answer 2

To ensure that any change in results is due
to the variable that is altered

Question 3

State why there are 2 values shown on a sphygmomanometer

Answer 3

one number is the systolic pressure and the other is the diastolic pressure

Question 4

high blood pressure over a prolonged period can result in hypertension
state one disease in which hypertension is a risk factor

Answer 4

stroke

Question 5

give the term used for the process where conditions that exist in a family are used to determine the genotypes of members

Answer 5

genetic counselling

Question 6

State the term used to describe the procedure to detect single gene disorders in fertilised eggs before they are implanted in the mother

Answer 6

PGD

Question 7

Name two hormones produced by the corpus luteum

Answer 7

progesterone
oestrogen

Question 8

Explain what is meant by in vitro fertilisation

Answer 8

the egg and the sperm are allowed to mix outside the body of the female