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Question
Explain the process of blood clotting.
Solution
Blood clotting is also known as blood coagulation. It is a process in which the Liquid blood changes into a semi-solid form known as a clot.
The process of blood clotting prevents the excessive loss of blood.
The process of blood clotting occurs in a series of following steps:
- The injured tissue cells and the platelets (thrombocytes) release thromboplastin.
- Thromboplastin helps in the formation of the enzyme prothrombinase in the presence of Ca2+ ions.
- Prothombinose inactivates heparin (anticoagulant) and also converts inactive prothrombin into active thrombin.
- Thrombin converts soluble fibrinogen into insoluble fibrin in the presence of Ca2+ ions.
- Fibrin forms a mesh or network in which platelets (thrombocytes) and other blood cells get trapped to form the clot.
RELATED QUESTIONS
Human blood clotting factor VIII is used to treat __________.
(A) pituitary dwarfism
(B) diabetes mellitus
(C) haemophilliacs
(D) cystic fibrosis
Formation of a to b is carried out in the presence of Ca++ions during clotting.
Select the CORRECT option for a and b
Which one of the following is not related to the clotting of blood?
Which enzyme is responsible for the conversion of inactive fibrinogens to fibrins?
Complete the missing word in the statement given below:
______ ions play a significant role in clotting.
Name the following:
A genetic disorder in which the blood does not clot.
1 gram of solid sodium chloride was taken in a clean and dry test tube and concentrated sulphuric acid was added to it.
- Name the gas evolved in the reaction.
- What will be observed when this gas is tested with (1) dry and (II) wet blue litmus paper?
Write your conclusion about the nature (acidic/basic) of this gas.
Name the mineral elements required for the clotting of blood.
State whether the following statement is true or false and correct the false statement.
Blood fails to clot readily in the case of deficiency of calcium.
State whether the following statement is true or false and correct the false statement.
The solid fibrin and thrombin are one and the same thing.
