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Question
How many litres of blood does an adult human body have?
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Solution
5.5 litres of blood
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RELATED QUESTIONS
The diagram below represents the simplified pathway of the circulation of blood. Study the same and answer the questions which follow:

(i) Name the blood vessels labelled 1 and 2.
(ii) State the function of blood vessels labelled 5 and 8.
(iii) What is the importance of the blood vessel labelled 6?
(iv) Which blood vessel will contain a high amount of glucose and amino acids after a meal?
(v) Draw a diagram of the different blood cells as seen in a smear of human blood.
Name the following:
The blood vessel which supplies blood to the liver.
Give reason, why a matured mammalian erythrocyte lacks nucleus and mitochondria?
what is Lymph nodes?
What is the function of tonsils?
Given diagram shows a simple diagram of the circulation of blood in a mamma showing the
main blood vessels, the heart, lungs and body tissues. The blood vessel, labelled 6, contains
deoxygenated blood and the valve leading to it has three semi-lunar pockets.

(a) Name the blood vessels and organs marked by numbers 1 to 8.
(b) What is meant by the term ‘double circulation’ of blood in mammals?
(c) what is diastole?
[There is an “error” in the diagram. According to the usual practice the pulmonary (lung)
circulation is shown upward and the systemic downward, but here it is reversed].
pH of oxygenated blood is ______.
True or false:
People with blood group ‘O’ are called universal recipients
Describe how the exchange of oxygen and carbon dioxide gases takes place in the lungs.
Identify the function of the erythropoietin hormone produced by kidney cells.
