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MCQ on Functions of Blood

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Blood and its functions is a very important topic in Biology. Questions are frequently asked in the exams on this topic and the level of questions is also very good. Keeping the syllabus and past questions on this topic, we are providing MCQs on this topic so that it will become easy for the students to revise the biology section thoroughly and fetch good marks from this section.  

Multiple Choice Questions on Functions of Blood :

Que 1. Blood is a which type of tissue?
(a) Epithelial tissue
(b) Connective tissue
(c) Both a and b
(d) None of the above

Ans. (b)  Connective tissue
Explanation: Blood is a type of connective tissue.

 

Que 2. Where do you find haemoglobin?
(a) In Plant leaves
(b) In Bone marrow
(c) In the Pituitary gland
(d) In human blood

Ans. (d) In human blood
Explanation: Hemoglobin is a substance found in human blood.

 

Que 3. Which one is responsible for the red color of human blood?
(a) Plasma
(b) Hemoglobin
(c) WBC
(d) Haemocyanin

Ans. (b) Hemoglobin
Explanation: Hemoglobin is a protein in your red blood cells that carries oxygen to your body’s organs and tissues and transports carbon dioxide from your organs and tissues back to your lungs

 

Que 4. The average blood pressure in the human body?
(a) 100/80
(b)80/100
(c) 120/80
(d) 80/120

Ans. (c) 120/80
Explanation: The average blood pressure in the human body is 120/80 i.e systolic pressure is around 120mm Hg and diastolic pressure should be around 80mm Hg.

 

Que 5. Which of the given functions are performed by blood?
(a) Helps in egestion
(b) Helps in digestion
(c) Maintenance of liquidity
(d) Transportation of oxygen to all the parts of the body

Ans. (d) Transportation of oxygen to all the parts of the body
Explanation: The transportation of oxygen to all the parts of the body is the main function of blood.

 

Que 6. In which of the given organisms, hemoglobin is dissolved in protoplasm?
(a) Earthworm
(b) Fish
(c) Frog
(d) Tiger

Ans. (a) Earthworm
Explanation: In Earthworm, hemoglobin is dissolved in protoplasm.

 

Que 7. Blood pressure is mainly measured in Hg. What does Hg refer to?
(a) Hygrometer
(b) Heliograph
(c) Hydrogen
(d) Mercury

Ans. (d) Mercury
Explanation: Hg is a symbol of mercury. It is used in thermometers, barometers, etc.

 

Que 8. When a person gets older, his blood pressure generally-
(a) Remains the same
(b) Increases
(c) Decreases
(d) Varies frequently

Ans. (b) Increases
Explanation: When a person gets older, his blood pressure generally increases.

 

Que 9. Which device is used to measure blood pressure?
(a) Salinometer
(b) Barometer
(c) Sphygmomanometer
(d) Photometer

Ans. (c) Sphygmomanometer
Explanation: A sphygmomanometer is used to measure blood pressure.

 

Que 10. Blood pressure in the human body is?
(a) Lesser than atmospheric pressure
(b) Greater than atmospheric pressure
(c) Same as atmospheric pressure
(d) None of these

Ans. (c) Same as atmospheric pressure
Explanation:  The blood pressure in the human body is the same as atmospheric pressure.

 

Que 11. Which of the given blood groups is a universal donor?
(a) A
(b) AB
(c) B
(d) O

Ans. (b) O
Explanation: O blood group is a universal donor specifically O- blood group whereas AB is a universal receiver

 

Que 12. Which of the given blood groups is a universal recipient?
(a) AB
(b)O
(c)A
(d)B

Ans. (B) O
Explanation: O blood group is a universal recipient. 

 

Que 13. Blood group was discovered by which of the given options?
(a) Robert Koch
(b) Landsteiner
(c) William Harvey
(d) Louis Pasteur

Ans. (b) Landsteiner
Explanation: The blood group was discovered by Landsteiner. He is also known as “the father of blood grouping” .

 

Que 14. Rh factor derives its name from which of the given options?
(a) Ape
(b) Human
(c) Rat
(d) Monkey

Ans. (d) Monkey
Explanation:  The designation Rh is derived from the use of the blood of rhesus monkeys in the basic test for determining the presence of the Rh antigen in human blood.

 

Que 15. In which part of our body are formed Red Blood Cells?
(a) Bone Marrow
(b) Heart
(c) Kidney
(d) Liver

Ans. (a) Bone Marrow
Explanation: Red Blood Cells are formed in the bone marrow.

 

Que 16. The excess of white corpuscles in the blood is called?
(a) Anoxia
(b) Leukaemia
(c) Septicemia
(d) Anaemia

Ans. (b) Leukaemia
Explanation: If there is an elevation in the level of lymphocytes, the condition is known as lymphocytic leukocytosis. This may occur as a result of a virus or an infection, such as tuberculosis. It may also be linked to specific lymphomas and types of leukemia.

 

Que 17. The diameter of WBCs in the human body is approx.
(a) 0.07mm
(b) 0.7mm
(c) 0.007mm
(d) 0.0007mm

Ans. (c) 0.007mm
Explanation: The diameter of WBCs in the human body is approximately 0.007mm.

 

Que 18. Which of the given antibodies are formed in blood plasma?
(a) Monocytes
(b) Eosinophils
(c) Neutrophils
(d) Lymphocytes

Ans. (d) Lymphocytes
Explanation:  Lymphocytes are formed in blood plasma.

 

Que 19. Which of the given acts as a defence against infection?
(a) WBC
(b) RBC
(c) Blood plasma
(d) Hemoglobin

Ans. (a) WBC
Explanation: WBCs act as a defence against infection.

 

Que 20. What is the Ph value of blood?
(a) 6.4
(b) 7.4
(c) 8.5
(d) 4.9

Ans. (b) 7.4
Explanation: The Ph value of blood is between 7.3 to 7.45. So ans. is 7.4 .
 



Last Updated : 16 Mar, 2023
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