Questions

Read the passage carefully and choose the best answer to each question out of the four alternatives and click the button corresponding to it.

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.

Phagocytosis is a process in which antigenic particles are _____ by and very often digested by macrophages and polymorphs.

In the following question, out of the given four alternatives, select the one which is opposite in meaning of the given word

Guile

The frictional force exerted by fluids is also called ________.

Shampooing is which country's concept?

The family is a social institution that is found in

Which of the following never occurs singly in nature?

Select the word with the correct spelling.

All this does not bode _______________ for even the loosest definitions of cosmopolitanism. A city by definition is a space, as ________________ historians and sociologists have already told us, which ideally privileges and _________________ the unexpected encounter, and calls on its citizens to be able to respond humanely even to those _______________ are not linked to us in familial, ethnic, nationalist or caste ___________________.

respond humanely even to those _______________ are not linked to us in familial