GCSE Edexcel Biology Circulatory system- heart: The diagram shows the main blood

Question

The diagram shows the main blood vessels and structures of the heart.

(a) (i) Draw a line to show the aorta on the diagram.
Label this line X.

(ii) Complete the sentence by putting a cross (X) in the box next to your answer.

The wall of the left ventricle is thicker than the wall of the right ventricle.

This is because the left ventricle pumps

A. blood containing more carbon dioxide
B. blood faster when you are exercising
C. blood to all parts of the body
D. blood to the lungs.

The diagram shows the main blood vessels and structures of the heart - Edexcel - GCSE Biology - Question 3 - 2017 - Paper 1