How do serological tests allow microbiologists to identify certain species of ba

Question

How do serological tests allow microbiologists to identify certain species of bacteria?

Nucleic acids inside the microbes are bound by antibodies

Stains are used to see the key features of the cell wall

Antiserum contains proteins that cause the clumping of a specific species of bacteria

The bacterial genome can be detected through nucleic acid amplification

Nucleic acids inside the microbes are bound by antibodies

Stains are used to see the key features of the cell wall

Antiserum contains proteins that cause the clumping of a specific species of bacteria

The bacterial genome can be detected through nucleic acid amplification

Explanation / Answer

Identification of the bacteria are done by: Staining of the cell wall of the bacteria by gram stain, ZN staining. Fluorescence antibody technique identification by the surface antigens.so antigens bind to antibodies. Resistance of the organism to heat and disinfectants is tested, both for vegetative and spore forms. Metabolism, need of oxigen and carbon dioxide, production of heamolysis helps for classification. By using antisera we can identify organisms by agglutination and other serological reactions. Bacterial genome also detected by nucleic acid amplification. Other tests like fermentation, hydrolysis are some times employed. Hence, the serological reactions detect the antigenic structure by using specific antisera by agglutination. For specific serological reactions answer is option 3. For identification of bacteria all are correct.

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