Blood Trivia

Q: How many liters of blood does the adult human body contain?
Ans: 5 liters

Q: How long does a red blood cell survive in the bloodstream?
Ans: 120 days

Q: What is responsible for the red color of blood?
Ans: Hemoglobin

Human Blood Quiz for Competitive Exams

Q: What is the main function of the red blood cells?
Ans: carry oxygen from the lungs

Q: What are the 4 main functions blood does for your body?
Ans: Red blood cells, plasma, white blood cells, and platelets.

Q: red blood cells make up what percentage of blood
Ans: 45%

Q: How many white blood cells are in 1ml of blood?
Ans:  4.8 – 5.2 million erythrocytes/ml and 4000 – 10,000 leukocytes/ml.

Human Blood Quiz for Competitive Exams

Q: What is normal blood count level?
Ans: normal range is 4,500 to 10,000 cells per microliter

Q: What hemoglobin level requires a transfusion?
Ans: hemoglobin level of 8 g/dL

Q: Who discovered the structure of hemoglobin?
Ans: Max Perutz In 1959,

Q: who discovered hemoglobin
Ans: 840 by Friedrich Ludwig Hunefeld

Q: Why is Haemoglobin red?
Ans: hemoglobin protein is made up subunits called hemes,

Q: who discovered red blood cells
Ans: Antoni van Leeuwenhoek

Q: who discovered white blood cells
Ans: Gabriel Andral (1797–1876)

Q: Red Blood Clells made by
Ans: hemoglobin and plasma

Q: how many blood group in human body
Ans: our principal types: A, B, AB, and O

Human Blood Quiz for Competitive Exams

Q: Which is the rarest blood group?
Ans: AB-negative (.6 percent)
B-negative (1.5 percent)
AB-positive (3.4 percent)
A-negative (6.3 percent)
O-negative (6.6 percent)
B-positive (8.5 percent)
A-positive (35.7 percent)

Q: What does a high number of leukocytes indicate?
Ans: A high white blood cell

Q: What are leukocytes in blood test?
Ans: WBCs

Q: There are five types of blood cells.
Ans: False

Q: The most common blood type is AB negative.
Ans: False

Human Blood Quiz for Competitive Exams

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