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 are antibodies?

In the following question, a sentence has been given in Direct/Indirect speech. Out of the four alternatives suggested, select the one which best expresses the same sentence in Indirect/Direct speech.

She said to her friend, "What can I do to help you?"

In the following question, the sentence given with blank to be filled in with an appropriate word. Select the correct alternative out of the four and indicate it by selecting the appropriate option.

In a clearing that started a few feet away was a small __________ of cattle.

In the following passage, some of the words have been left out. Read the passage carefully and select the correct answer for the given blank out of the four alternatives.

Widespread liberalization of the economic ________________ regime was long overdue in 1991, and has played a positive role since, but its impact has ________________ its course and the policy has recognisable ___________________. Liberalization cannot address all aspects of the man­made environment and now climate change ________________ to change everything forever. We do not have another quarter century to deal ___________ these imperatives.

Widespread liberalization of the economic ________________ regime

With the participation in the Rio Olympics who has become the first tennis player in the world to have 7 appearances in Olympics?

In the following question, from the given alternative words, select the word which cannot be formed using the letters of the given word.

Suspensefulnes

Three words in bold letters are given in each question, which have something in common among themselves. Out of the four given alternatives, choose the most appropriate description about these three words.

Abhi Bhattacharya: Utpal Dutt: Satyajit Ray

Which of the following is NOT a property of acids?