Question: 159: Given below are two statements :
Statement I :
The coagulum is formed of network of threads called thrombins.
Statement II :
Spleen is the graveyard of erythrocytes.
In the light of the above statements, choose the most appropriate answer from the options given below :
(1) Statement I is correct but Statement II is incorrect
(2) Statement I is incorrect but Statement II is correct
(3) Both Statement I and Statement II are correct
(4) Both Statement I and Statement II are incorrect
Answer: Option (2)
Explanation:
During blood coagulation, the clot or coagulum is formed by
a network of insoluble protein threads called fibrin.
Thrombin is an enzyme that converts soluble fibrinogen into insoluble fibrin.
Therefore, the statement that the coagulum is formed of threads called thrombins is incorrect.
The spleen removes old and damaged red blood cells from circulation.
Hence, the spleen is commonly referred to as the graveyard of erythrocytes.
Thus, Statement I is incorrect, while Statement II is correct.