Paper 2 Corrections

Question 1

Why isnt protien and white/red blood cells in the neuron filtrate?

Answer 1

cannot be filtered into
the nephron because they are too large to pass through the membrane/into the nephron

Question 3

Explain the role of vasodilation in thermoregulation

Answer 3

vasodilation acts to cool the body down (1)
more blood flows near the surface of the skin (1)
less blood flows through the shunt valve (1)
causing increased thermal energy loss (1)

Question 4

what is the symbol for oxidising

Answer 4

ball with fire on it

Question 5

How does clomifene therapy increase the chance of pregnancy

Answer 5

it causes the release of FSH and LH
stimulating eggs to develop (in the
follicles/ovary) and stimulating ovulation

Question 6

How does adrenalin improve an athlete’s performance?

Answer 6

Adrenalin acts to increase heart rate / blood pressure
-> Increased blood flow
-> Causes the release of glucose from
glycogen
= Increased {oxygen/glucose}
= Increased the rate of respiration
= release energy (for the
working muscles/body)