B1B Edexel

B1B Edexel

1Most of Peter’s blood is made up of
A plasma
Type of message carried by hormones hormones transported by
C chemical   blood
PANCREAS=diabeth=insulin
What is the name given to disease-causing organisms?
C pathogens
Which part of the body may be seriously damaged by taking an overdose of paracetamol?
C liver
How does paracetamol relieve the pain of a headache?
A Transmission across the synapse is slowed down
Which is a reason for paracetamol being the most used painkiller in Britain?
A There are no side effects if used in small amounts
B Paracetamol is easily available
C Paracetamol is cheap to buy
What would be the effect in Britain of the emergence of drug resistant TB?
B The number of cases of TB would increase and they would be more difficult to treat
Oestrogen helps as a contraceptive because it
D inhibits FSH release
Progesterone helps as a contraceptive because it
B prevents ovulation
The organ that can be damaged by a stroke is the
B brain
Another way in which the body prevents infection is by producing chemicals such as
lysozyme.
Lysozyme is
A a chemical barrier
The following statements show the stages involved in IVF but they are not in the correct
order.
4 A woman is injected with a fertility hormone
2 Eggs are collected from the ovaries
3 Sperm are mixed with the eggs
5 An egg is fertilised and develops into an embryo                                                                                         1 The embryo is inserted into the uterus

Different parts of the brain are responsible for different body functions.
Which row of the table shows the correct parts of the brain responsible for body temperature
and movement?
body temperature         body movement
C hypothalamus             cerebellum
Which row of the table correctly describes the effect of caffeine on the body?
reaction time   heart rate
C decreases       increases
D electrical impulses are transmitted less effectively
What effect will lower levels...