(1)
Draw a ring around the correct answer to complete each sentence.
Plasma.
Most of the oxygen in the blood is carried by
the
Red blood cells.
White blood cells.
(1)
(2)
Oxygen combines with a colored pigment in the blood.
Alveoli.
This colored pigment is called
Haemoglobin.
Lactic acid.
(1)
(3) Diagram 3 shows part of the blood supply in the lungs.
(a)
Name the types of blood vessel labelled F, G and H.
F...............................................................................................................
G...............................................................................................................
H...............................................................................................................
(3)
Page 1
(b)
Give one way in which the composition of the blood in vessel F is different
from the
composition of the blood in vessel H.
...............................................................................................................
...............................................................................................................
(1)
(3)
The diagram shows four parts of blood.
Page 2
Complete the table to give the name and function of the parts labelled A, B and C.
Letter
Name
Function
......................................................................
A
......................................
......................................................................
......................................................................
B
......................................
......................................................................
......................................................................
C
......................................
......................................................................
(6)
Page 3