CIE iGCSE Co-Ordinated Science B9.3 Blood vessels Exam Style Questions Paper 2
▶️ Answer/Explanation
Blood from the vena cava enters the right heart and travels via the \(\text{pulmonary artery} \rightarrow \text{lungs}\) to be oxygenated.
It returns via the \(\text{pulmonary vein} \rightarrow \text{left heart} \rightarrow \text{aorta} \rightarrow \text{renal artery}\), reaching the kidney.
✅ Answer: (A)
It returns via the \(\text{pulmonary vein} \rightarrow \text{left heart} \rightarrow \text{aorta} \rightarrow \text{renal artery}\), reaching the kidney.
✅ Answer: (A)
▶️ Answer/Explanation
The pulmonary vein carries oxygenated blood from the lungs back to the heart.
Veins carry blood towards the heart, so the correct vessel is the one with its arrow pointing from the lungs into the heart.
This corresponds to vessel B in the diagram.
✅ Answer: (B)
Veins carry blood towards the heart, so the correct vessel is the one with its arrow pointing from the lungs into the heart.
This corresponds to vessel B in the diagram.
✅ Answer: (B)
▶️ Answer/Explanation
Vessel X carries deoxygenated blood from the body into the heart, so it is the pulmonary artery leading to the lungs.
Vessel Y carries oxygenated blood back from the lungs, and chamber Z receiving this blood before pumping it to the body is the right ventricle.
✅ Answer: (D)
Vessel Y carries oxygenated blood back from the lungs, and chamber Z receiving this blood before pumping it to the body is the right ventricle.
✅ Answer: (D)
▶️ Answer/Explanation
Arteries carry blood away from the heart. In the heart diagram, vessel 2 is the pulmonary artery and vessel 3 is the aorta. Both carry blood away from the heart (to the lungs and to the body respectively). Vessel 1 is the pulmonary vein and vessel 4 is the vena cava, both are veins that return blood to the heart.
✅ Answer: (C)
✅ Answer: (C)
Question
Which vessels carry blood towards the heart?
▶️Answer/Explanation
Ans: D