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.

What happens when an antigen comes in contact with lymphocytes?

In the following question, out of the four alternatives, select the alternative which will improve the bracketed part of the sentence. In case no improvement is needed, select "no improvement".

They loaded their ships with spices and silks and (returns) with the summer monsoon.

In the following question the 1st and the last part of the sentence/passage are numbered 1 and 6. The rest of the sentence/ passage is split into four parts and named P, Q, R and S. These four parts are not given in their proper order. Read the sentence/passage and find out which of the four combinations is correct.

1. Marine biology is the study of organisms in the ocean.
P. At a fundamental level, marine life helps determine the very nature of our planet.
Q. Marine life is a vast resource.
R. Shorelines are also shaped and protected by marine life.
S. Marine organisms contribute significantly to the oxygen cycle.
6. Marine biology covers a great deal, from the microscopic to the huge whales.

Who is the author of the Indian English Novel 'Sita : Warrior of Mithila' published in

Find the odd words / letters / numbers from the given alternatives .

These regional teams : Dabang Mumbai, Kalinga Lancers, Ranchi Rays, and Delhi Waveriders play against each other in which sports league competition?

Salil Parekh, who took charge as the new CEO of Infosys, is moving out from which company to join and lead Infosys?

1 pascal equals 1 ________________.