(a(i))[1]
State what the function of a red blood cell is.
(a(ii))[2]
State two ways in which a red blood cell is adapted for its function.
(b)[1]
State the name of a blood component that is responsible for clotting.
(c(i))[1]
State the name of the disease caused by blockage in the arteries that supply the heart muscle.
(c(ii))[3]
List three risk factors that increase the chance of a blockage in the arteries supplying the heart muscle.
(d)[4]
Complete Table 8.1 by writing the letter for each named blood vessel in Fig. 8.2.
(e)[4]
Describe how the structures of the circulatory system keep blood flowing in one direction.