Edexcel IGCSE Biology 2.69 circulatory system structure
Practise circulatory system structure by naming labelled vessels and using tables to compare oxygen, carbon dioxide, glucose or urea content.
- Syllabus
- First assessment 2019
- Course
- Biology 4BI1
Exam points
- Name labelled vessels such as the aorta, pulmonary artery, pulmonary vein or vena cava.
- Use vessel tables to choose where oxygen, carbon dioxide, glucose or urea is lowest.
- Compare coronary artery and vein blood by oxygen and carbon dioxide content.
2.69 Circulatory system structure question 1
Aerobic respiration uses oxygen and produces ATP.
The structure of a frog heart is different from the structure of a human heart.
The diagram shows a section of a frog heart with arrows showing the direction of blood flow.
What is the name of the blood vessel labelled X ?
A
aorta
B
pulmonary artery
C
pulmonary vein
D
vena cava
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