Biology · Chapter 8 of 19

Circulatory System & Body Fluids: BPSC & UPPCS Prelims PYQs

13 previous-year questions on Circulatory System & Body Fluids. Each one opens to its answer and explanation.

1. 1. UPPSC Prelims 2025

   Which of the following statements with reference to 'blood' is/are correct?
   1. Blood is composed of plasma and different types of cells.
   2. The presence of haemoglobin makes blood appear red. Select the correct answer from the code given below:

   1. AOnly 1
   2. BBoth 1 and 2
   3. CNeither 1 nor 2
   4. DOnly 2
   Answer and explanation →

2. 2. 70th BPSC Prelims 2024

   Which of the following is the fluid part of the blood?

   1. AWBC
   2. BPlasma
   3. CBlood platelets
   4. DRBC
   Answer and explanation →

3. 3. UPPSC Prelims 2024

   The only vein that carries oxygenated blood is:

   1. ACystic vein
   2. BCardiac vein
   3. CPulmonary vein
   4. DHepatic Portal vein
   Answer and explanation →

4. 4. UPPSC Prelims 2023

   Human heart is made up of how many chambers?

   1. AOnly four
   2. BOnly two
   3. COnly one
   4. DOnly three
   Answer and explanation →

5. 5. 67th BPSC Prelims 2022

   The animal without red blood cells is

   1. Aearthworm
   2. Bsnake
   3. Cpeacock
   4. DMore than one of the above
   5. ENone of the above
   Answer and explanation →

6. 6. 67th BPSC Prelims 2022

   In transfusion, blood must be compatible not only in blood type but also in

   1. ARh factor
   2. Bthe number of white cells
   3. Cthe number of red cells
   4. Drace of donor and recipient
   5. ENone of the above/More than one of the above
   Answer and explanation →

7. 7. 67th BPSC Prelims 2022

   The universal acceptor blood group is

   1. AA
   2. BB
   3. CAB
   4. DO
   5. ENone of the above/More than one of the above
   Answer and explanation →

8. 8. UPPSC Prelims 2019

   Which of the following organisms has white blood?

   1. ALizard
   2. BCockroach
   3. CHouse bug
   4. DMosquito
   Answer and explanation →

9. 9. UPPSC Prelims 2016

   Consider the following statements about haemoglobin:
   1. It carries oxygen in the blood.
   2. It is an iron-containing compound.
   3. It provides immunity against certain diseases.
   4. It imparts red colour to the blood. The correct statements out of these are:

   1. A1, 2 and 3
   2. B1, 3 and 4
   3. C2, 3 and 4
   4. D1, 2 and 4
   Answer and explanation →

10. 10. UPPSC Prelims 2016

    For human blood transfusion, which blood group is known as universal donor?

    1. AB+ Group
    2. BO Group
    3. CAB Group
    4. DA+ Group
    Answer and explanation →

11. 11. 56th–59th BPSC Prelims 2014

    The total volume of blood in a normal adult human being is?

    1. A5-6 liters
    2. B3-4 liters
    3. C8-10 liters
    4. D10-12 liters
    Answer and explanation →

12. 12. UPPSC Prelims 2014

    In coronary artery by-pass surgery the blood vessel to be used as graft has to be

    1. AVein from the leg
    2. BArtery from the fore arm
    3. CArtery from mammary region of chest
    4. DAny of these
    Answer and explanation →

13. 13. UPPSC Prelims 2014

    In which of the following departments of a hospital will 'Cath lab' be found?

    1. APathology
    2. BSurgery
    3. CCardiology
    4. DNuclear Medicine
    Answer and explanation →