Question

Define blood what it composition

Answer 1

a)) blood is liquid connective tissue which transports oxygen and carbon di oxide but its affection towards oxygen than carbon dioxide.
b)) it has 3 type of substance -
RBC or red blood corpuscles. it is made of haemoglobin containing iron. it doesnot have nucleus accept camel's rbc
one molecule of haemoglobin combine with 4 molecule of oxygen to transport them.
WBC or white blood corpuscles. its function is to protect our body from diseases and infections. they fight against them.
platelets . these are the cells which stop bleeding from an injury by clotting.

blood clotting process :
injuted tissue comes contact with platelets and first form thramboplastin. with the help of this thramboplastin prothombin is converted into thrombin.with rhe help of thombin fibrinogen is converted into fibrin and then fibrin xomes in cintact with blood and blood clot is formed.
there is 4 litres of blood in our body.
i have a lot to tell about blood but i think it would be enough for you...

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Answer 2

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→Blood is a red vascular tissue which occurrs in the blood vessels.

→It formed plasma, erythrocytes, leukocytes and platelets.

✨Hemoglobin is present in the RBCs.

✨Blood flows and transports gases and help in the food digestion.

✨Blood transports nutrients, hormones and vitamins to the tissues and carries excretory materials from the tissue to the excretory organs.

✨RBCs of the blood help to transport of respiratory gases (oxygen and carbon dioxide).

✨WBCs of the blood fight with the infection by producing antibodies.

✨Blood platelets help in the clotting of the blood.

✨Blood conducts heat and regulates the body temperature.