Which one of the following statements best describes the role of B cells and T cells in the human body?

UPSC Prelims & Mains Questions

Which one of the following statements best describes the role of B cells and T cells in the human body?

A)

They protect the body from environmental allergens.

B)

They alleviate the bodyâ€™s pain and inflammation.

C)

They act as immunosuppressants in the body.

D)

They protect the body from the diseases caused by pathogens.

Correct Answer : They protect the body from the diseases caused by pathogens.

Note :

Lymphocytes are a type of white blood cells. They play a critical role in keeping us healthy. Without them, we can’t survive.

* T cells protect us from infection. In our daily lives, we’re constantly exposed to pathogens, such as bacteria, viruses and fungi. Without T lymphocytes, also called T cells, every exposure could be life-threatening. T cells can wipe out infected or cancerous cells. They also direct the immune response by helping B lymphocytes to eliminate invading pathogens.

* B cells create antibodies. B lymphocytes, also called B cells, create a type of protein called an antibody. These antibodies bind to pathogens or to foreign substances, such as toxins, to neutralize them. For example, an antibody can bind to a virus, which prevents it from entering a normal cell and causing infection. B cells can also recruit other cells to help destroy an infected cell.

Source : Mdanderson

Year : 2022

Category : General Studies

Recently Updated in UPSC Questions

Q.

With reference to 'IFC Masala Bonds', sometimes seen in the news, which of the statements given below is/ are correct? (2016)

1. The International Finance Corporation, which offers these bonds, is an arm of the World Bank.

2. They are rupee-denominated bonds and are a source of debt financing for the public and private sector.

Select the correct answer using the code given below:

A)

1 only

B)

2 only

C)

Both 1 and 2

D)

Neither 1 nor 2

Correct Answer : Option (C) - Both 1 and 2

Note :

* The World Bank Group, which is a vital source of financial and technical assistance to developing countries, consists of five distinct yet complementary organizations, viz.,

* International Bank for Reconstruction and Development (IBRD),

* International Development Association (IDA),

* International Finance Corporation (IFC), hence, statement 1 is correct.

* Multilateral Investment Guarantee Agency (MIGA),

* International Centre for Settlement of Investment Disputes (ICSID).

* Masala Bonds are rupee-denominated borrowings issued by Indian entities in overseas markets. Masala means ‘spices’ and the term was used by International Finance Corporation (IFC) to popularise the culture and cuisine of India on foreign platforms. The objective of Masala Bonds is to fund infrastructure projects in India, fuel internal growth via borrowings and internationalize the Indian currency. Hence, statement 2 is correct.

Year : 2022

Category : General Studies

Q.

Consider the following statements:

1. The Accelerated Irrigation Benefits Programme was launched during 1996-97 to provide loan assistance to poor farmers.

2. The Command Area Development Programme was launched in 1974-75 for the development of water-use efficiency,

Which of the statements given above is/ are correct?

A)

1 only

B)

2 only

C)

Both 1 and 2

D)

Neither 1 nor 2

Correct Answer : Option (B) - 2 only

Note :

The Accelerated Irrigation Benefits Programme (AIBP) was launched in 1996 as a central assistance programme, with the aim to accelerate creation of irrigation potential.

The Command Area Development (CAD) programme was initiated in 1974-75 with a view to bridging the gap between the potential created and its utilisation and optimising agricultural productivity through better management of land and water use in the command areas served by selected major and medium irrigation projects.

Year : 2015

Category : General Studies

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