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.

Which of the following statement is true in the context of the essay?

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.

The woodpeckers of the West (with one exception) are different _______________ those of the East, and so are the flycatchers, the grosbeaks, the orioles, the tanagers, the humming-birds, _____________ many of the sparrows. ____________ of the purple and bronzed grackles (the latter are _______________ seen on the plains of Colorado, but are not common), the Rockies boast of Brewer's blackbird, ______________ habits are not as prosaic as his name would indicate.

(the latter are _______________ seen on the plains of Colorado, but are not common)

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. Suddenly the man heard the low hum of an engine.
P. Instead, it grew louder and louder and seemed to be coming from above.
Q. At first he thought that it must be a car travelling along the road he had recently left.
R. He looked up quickly and saw an aeroplane cutting a crazy, zigzag path across the sky.
S. He expected the noise to fade away in the distance.
6. It disappeared for an instant behind some clouds, then emerged and plunged into the field.

In the following question, a sentence / a part of sentence is underlined. Below are given alternatives to the underlined part which may improve the sentence. Choose the correct alternative. In case no improvement is required, choose "No Improvement" option.

The reason why the magazine sells so well is because it is written in a pleasant style.

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.

The driver said, "I have been waiting here at the airport since two hours for my master."

_____ is the cell organelle, in which the biochemical processes of respiration and energy production occur.

The formed elements in the blood are

In the following question, some part of the sentence may have errors. Find out which part of the sentence has an error and select the appropriate option. Ifa sentence is free from error, select 'No Error'.

My elder son deals with (1)/ spare parts and manages (2)/ his bread and butter. (3)/ No Error (4)