MEDIUM
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When antibodies are mixed with their corresponding antigens present on the surface of animal cells, erythrocytes, or bacteria, they cross-link these objects to form visible clumps. This serological reaction is called as agglutination and is very similar to the precipitation reaction. Both reactions are specific because they depend on the specific antibody and antigen pair. Antigens involved in precipitation reaction are much smaller and more soluble than those involved in agglutination making the latter reaction easily detectable. Which of the following options is best suited to make the precipitation reaction more easily detectable?
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Important Questions on Body Fluids and Circulation
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What does "X" and "Y" indicate in the given chart?
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Study the following.
A) Blood coagulation is also called haemolysis.
B) Blood clotting is a change in plasma.
C) Serum does not contain clotting factors like prothrombin and fibrinogen.
D) Proconvertin is involved in extrinsic pathway.
Select the incorrect statement.
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Match the following columns and select the correct option.
| Column-I | Column-II | ||
| (a) | Eosinophils | (i) | Immune response |
| (b) | Basophils | (ii) | Phagocytosis |
| (c) | Neutrophils | (iii) | Release histaminase, destructive enzymes |
| (d) | Lymphocytes | (iv) | Release granules containing histamine |
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Given below are two statements:
Statement I: The coagulam 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:
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