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DP IB Biology: SL
Topic Questions
6.2 The Blood System
Question 2
Which are chambers of the heart?
I. Atrium
II. Aorta
III. Ventricle
IV. Lumen
I and III
I, II and III
III and IV
I and II
Question 4
Which statement about the human circulatory system is FALSE?
The double circulatory system is a closed loop.
In the double circulatory system, blood passes through the heart twice on each full circuit of the body.
Blood bathes the cells in each organ that it is supplied to.
The systemic circulation loop supplies blood to all the major body organs including the brain.
Question 5
Which describes the sequence of chambers and vessels through which blood flows after it has left the vena cava, on its way to the lungs?
right atrium → right ventricle → pulmonary artery → lungs
left atrium → left ventricle → pulmonary artery → lungs
right atrium → right ventricle → aorta → lungs
left atrium → left ventricle → pulmonary vein → lungs
