why the blood red in colour ??
Answers
Solution:-
Blood, is red in color due to the presence of a red pigment called haemoglobin.
Sugar, amino acids, vitamins and minerals etc are picked by the blood. Plasma from intestine is then transported to different parts of the body
Gases like carbon dioxide and oxygen are transported either forming compound with haemoglobin or being soluble in blood plasma.
Metabolic waste products from various part of body are collected by blood and is brought to excretory organs for excretion.
Endocrine glands pour the hormone into blood steam to be carried to Target an organ.
White blood cell protects body from the attack of foreign germs, microbes and pathogens.
Platelets help in blood clotting by plugging place of injury.
✴️Blood is red because it is made up of cells that are red, which are called red blood cells.
✴️Within the red blood cells there is a protein called hemoglobin. Each hemoglobin protein is made up subunits called hemes, which are what give blood its red color.
●Blood is the principal circulating fluid in our body.
●It is contained in the heart, and in the blood vessels .
●It is red in colour.
It is due to the presence of the respiratory iron containing pigment called haemoglobin.
● The haemoglobin is the effective chemical constituent of red blood cells .
It is formed of an iron containing part called haemines and the protein called globin.
● Properties of blood:-
♤ It is never stationary .
♤ It is bright red in colour when taken from an artery and dark red when taken from a vein.
♤ It is slightly alkaline. ph value is between 7.3 to 7.45
♤ An average adult human has 5 to 6 litres of blood by volume.
● Functions of blood include:-
1. Transport of digested food from the alimentary Canal to the tissues .
2. Transport of oxygen from the lungs to the tissues .
3. Transport of carbon dioxide from the tissues to the lungs .
4. Transport of excretory material from the tissues to the liver kidney or the skin for elimination .
5. Distribution of hormones directly into the blood .
6. Distribution of heat .
7. Clotting over a wound to cut down loss of blood.
8. White blood corpuscles protect the body from the diseases by engulfing bacteria .
9. It produces antitoxins and antibodies which neutralize the poisonous substances which enter the body .
■ Thus, the main functions of the blood in our body can be treated under two broad headings :