NEET-UG SERIES Biology
Circulatory System
4 previous year questions.
Volume: 4 Ques
Yield: Medium
High-Yield Trend
1
2025 2
2024 1
2013 Chapter Questions 4 MCQs
01
PYQ 2013
medium
biology ID: neet-ug-
Figure shows schematic plan of blood circulation in humans with labels A to D. Identify the label and give its function/s.
1
A - Pulmonary vein - takes impure blood from body parts, PO2 = 60 mm Hg
2
B - Pulmonary artery - takes blood from heart to lungs, PO2 = 90 mm Hg
3
C-Vena Cava - takes blood from body parts to right auricle, PCO2 = 45 mm Hg
4
D-Dorsal aorta - takes blood from heart to body parts, PO2 = 95 mm Hg
02
PYQ 2024
medium
biology ID: neet-ug-
‘Lub’ sound of Heart is caused by the___________.
1
closure of the semilunar values
2
opening of tricuspid and bicuspid values
3
opening of the semilunar valves
4
closure of the tricuspid and bicuspid valves
03
PYQ 2024
medium
biology ID: neet-ug-
Open Circulatory system is present in:
1
Palaemon, Nereis, Balanoglossus
2
Hirudinaria, Bombyx, Salpa
3
Anopheles, Limax, Limulus
4
Pheretima, Musca, Pila
04
PYQ 2025
medium
biology ID: neet-ug-
In frog, the Renal portal system is a special venous connection that acts to link:
1
Liver and kidney
2
Kidney and intestine
3
Kidney and lower part of body
4
Liver and intestine