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A drop of each of the following, is placed separately on four slides. Which of them will not coagulate? [2007]
- a)Blood serum
- b)Sample from the thoracic duct of lymphatic system
- c)Whole blood from pulmonary vein
- d)Blood plasma.
Correct answer is option 'A'. Can you explain this answer?
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Verified Answer
A drop of each of the following, is placed separately on four slides. ...
Blood serum is liquid minus clotting elements of pale yellow colour. It does not have fibrinogen and other clotting materials. It does not take part in blood clotting.
Most Upvoted Answer
A drop of each of the following, is placed separately on four slides. ...
Explanation:
To understand why blood serum does not coagulate, we need to understand the composition of blood and the process of coagulation.
Blood Composition:
- Blood is composed of cells suspended in a liquid called plasma.
- Plasma is the liquid component of blood that contains various proteins, electrolytes, hormones, and waste products.
- Blood cells include red blood cells (erythrocytes), white blood cells (leukocytes), and platelets (thrombocytes).
Coagulation Process:
- Coagulation is a complex process that involves the formation of a blood clot to prevent excessive bleeding.
- It is initiated by a series of reactions that ultimately convert soluble fibrinogen into insoluble fibrin, which forms a mesh-like structure to trap blood cells and stop bleeding.
Analysis of Options:
a) Blood serum: Blood serum is the liquid component of blood that remains after the clotting process. It does not contain fibrinogen, which is necessary for the formation of a blood clot. Therefore, blood serum does not coagulate.
b) Sample from the thoracic duct of the lymphatic system: The lymphatic system is a network of vessels that collects excess fluid and waste products from tissues. The sample from the thoracic duct may contain lymphocytes and other components, but it does not contain the necessary factors for coagulation. Therefore, it will not coagulate.
c) Whole blood from the pulmonary vein: Whole blood contains all the components of blood, including plasma, cells, and platelets. Therefore, it has the potential to coagulate.
d) Blood plasma: Blood plasma is the liquid component of blood that contains fibrinogen and other factors necessary for coagulation. Therefore, blood plasma has the potential to coagulate.
Conclusion:
Among the given options, blood serum will not coagulate because it does not contain fibrinogen, which is necessary for the coagulation process.
To understand why blood serum does not coagulate, we need to understand the composition of blood and the process of coagulation.
Blood Composition:
- Blood is composed of cells suspended in a liquid called plasma.
- Plasma is the liquid component of blood that contains various proteins, electrolytes, hormones, and waste products.
- Blood cells include red blood cells (erythrocytes), white blood cells (leukocytes), and platelets (thrombocytes).
Coagulation Process:
- Coagulation is a complex process that involves the formation of a blood clot to prevent excessive bleeding.
- It is initiated by a series of reactions that ultimately convert soluble fibrinogen into insoluble fibrin, which forms a mesh-like structure to trap blood cells and stop bleeding.
Analysis of Options:
a) Blood serum: Blood serum is the liquid component of blood that remains after the clotting process. It does not contain fibrinogen, which is necessary for the formation of a blood clot. Therefore, blood serum does not coagulate.
b) Sample from the thoracic duct of the lymphatic system: The lymphatic system is a network of vessels that collects excess fluid and waste products from tissues. The sample from the thoracic duct may contain lymphocytes and other components, but it does not contain the necessary factors for coagulation. Therefore, it will not coagulate.
c) Whole blood from the pulmonary vein: Whole blood contains all the components of blood, including plasma, cells, and platelets. Therefore, it has the potential to coagulate.
d) Blood plasma: Blood plasma is the liquid component of blood that contains fibrinogen and other factors necessary for coagulation. Therefore, blood plasma has the potential to coagulate.
Conclusion:
Among the given options, blood serum will not coagulate because it does not contain fibrinogen, which is necessary for the coagulation process.
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A drop of each of the following, is placed separately on four slides. Which of them will not coagulate? [2007]a)Blood serumb)Sample from the thoracic duct of lymphatic systemc)Whole blood from pulmonary veind)Blood plasma.Correct answer is option 'A'. Can you explain this answer?
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