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प्रश्न
Explain with reasons.
Human blood is red coloured.
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उत्तर
Blood is red because it is composed of red cells known as red blood cells. Hemoglobin is a protein found within red blood cells. Each hemoglobin protein is composed of subunits known as hemes, which are responsible for the red colour of blood. Hemes, in particular, can bind iron molecules, and these iron molecules bind oxygen. Because of the interaction between iron and oxygen, blood cells are red. When iron is oxygenated, it turns red, and blood turns red as a result.
संबंधित प्रश्न
Heart sounds are produced due to ______.
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closure of tricuspid and bicuspid valves
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rushing of blood through valves producing turbulence
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closure of atrioventricular and semilunar valves
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entry of blood into auricles
A blood vessel which has small lumen and thick wall is ______.
The valve which prevents back flow of blood in the veins and lymph vessels ______.
Find the odd one out.
Put a tick mark (✓) against the correct alternative in the following statement.
Pulmonary vein carries
Fill in the blank:
In human body, heart is located on the _____ side of the chest cavity.
Explain the Term
Hepatic Portal System
The artificial method of filtering the blood or removing the wastes from the blood.
In which of the following process blood neutrophils play an important role?
The heart is covered by ______.
