Questions

The important book written by Kautilya is

The least preferred technique in the disposal of Municipal Solid Waste is

Calculate the time period (in seconds) of a sound wave of wavelength 4m traveling with a speed of 500m/s

What is the unit of resistance?

What does BOD5 refer to?

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Courteousness and refinement of manner.

In the following question, out of the given four alternatives, select the alternative which best expresses the meaning of the Idiom/Phrase.

Pay lip service

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The antigen-antibody immunological reaction is used to be regarded as typical of immunological responses. Antibodies are proteins synthesized by specialized cells called plasma cells, which are formed by lymphocytes (cells from the lymph system) when an antigen, a substance foreign to an organism's body, comes in contact with lymphocytes. Two important manifestations of antigen-antibody immunity are lysis, the rapid physical rupture of antigenic cells and the liberation of their contents into the surrounding medium, and phagocytosis, a process in which antigenic particles are engulfed by and very often digested by macrophages and polymorphs. The process of lysis is executed by a complex and unstable blood constituent known as complement, which will not work unless it is activated by a specific antibody; the process of phagocytosis is greatly facilitated when the particles to be engulfed are coated by a specific antibody directed against them.

What are antibodies?