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 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.

Without habit, personality could not exist; for we could never do a thing twice alike, and ___________ would be a new person each succeeding moment. The acts which give us our own peculiar _____________ are our habitual acts--the little things that do themselves moment by moment without care or attention, and are the truest and best expression of our real selves. Probably _______ one of us could be very sure which arm he puts ________ the sleeve, or which foot he puts into the shoe, first; and yet each of us ____________ formed the habit long ago of doing these things in a certain way.

and yet each of us ____________ formed the habit

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. If a sentence is free from error, select 'No Error'.

Hardly had I stepped(A)/out of my house when(B)/I saw them coming towards my house.(C)/No error(D)

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

‘Don’t you know the way to the station?’ father said to Anjali.

Which one of the following is lyophilic colloid?

What are stars primarily made of?

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.

Morality is _____ with ethics and symbolises the doctrine of actions right or wrong. Politics is the _____ of expediency and need not always be _____. If something is wrong and _____ expedient, it cannot be _____.

Morality is _____ with ethics and symbolises the doctrine of actions right or wrong.

India was able to achieve the fiscal deficit target for the Financial Year 2016-17. It was how much percent of GDP?