Previous year MCQs

General science UPPSC 1993 GS-I
Question

Main functions of White blood cells are?

Answer & Solution

Answer: (Detailed Solution Below)

Option C: To develop immunity

Detailed Solution:

The correct answer is “To develop immunity”.
The main functions of white blood cells (WBCs) are to develop immunity and protect the body from infections and foreign invaders.

Similar Questions:

Heroin is obtained from-
  1. A) Indian hemp
  2. B) Opium poppy
  3. C) Tobacco
  4. D) Arecanut
Which of the following pars is NOT correctly matched?
  1. A) Oxytocin - Hormone
  2. B) Aspartame - Synthetic sweetener
  3. C) Neoprene - Specialized rubber
  4. D) Rayon - Modified starch
Which one of the following is not correctly matched? Pollutant – Disease caused
  1. A) Mercury – Minamata disease
  2. B) Cadmium – Itai-Itai disease
  3. C) Nitrate Ion – Blue baby syndrome
  4. D) Fluoride Ion – Indigestion
The disease caused by swelling of the membrane over spinal cord and brain is:
  1. A) Leukaemia
  2. B) Paralysis
  3. C) Sclerosis
  4. D) Meningitis
Urea is:
  1. A) A nitrogen-containing organic compound
  2. B) A nitrogen-containing inorganic compound
  3. C) A plant hormone
  4. D) An Endergonic compound
What is the function of the thermostat in a refrigerator?
  1. A) To lower the temperature
  2. B) To increase the freezing point
  3. C) To maintain constant temperature
  4. D) To decrease the melting point
Consider the following statements about haemoglobin:

1) It carries oxygen in the blood.
2) It is iron containing compound.
3) It provides immunity against certain disease.
4) It imparts red colour to the blood.

The correct statements out of these are:
  1. A) 1,2 and 3
  2. B) 2, 3 and 4
  3. C) 1, 3 and 4
  4. D) 1, 2 and 4
Read the following sentences.

Statement (A): Policies are made by Ministers and implemented by the public servants.
Reason (R): In parliamentary system the principle of the responsibilities of the ministers works.
  1. A) A and R both are correct and A is the correct explanation of R
  2. B) A and R both are correct and A is not the correct explanation of R
  3. C) A is correct but not R
  4. D) R is correct but not A
Which of the following dynasty had been most affected due to the attack of Huna?
  1. A) Mauryan
  2. B) Kushan
  3. C) Gupta
  4. D) Shunga
Double-helical structure of DNA was given by whom ?
  1. A) Jacob and Monod
  2. B) Watson and Crick
  3. C) H.G. Khorana
  4. D) None of the above
It is difficult to walk on ice than on road because:
  1. A) Ice is harder than road
  2. B) Road is harder than ice
  3. C) Ice does not offer any reaction when we push it with our foot
  4. D) Ice has a lesser friction than road
Match List I with List II and select the correct answer from the code given below:
List-I - List-II

A. Hormone - 1. Lipase
B. Enzyme - 2. Testosterone
C. Phospholipid - 3. Lecithin
D. Polymer - 4. Polyethylene

Code:
A B C D
  1. A) 2 1 3 4
  2. B) 4 1 2 2
  3. C) 2 3 4 2
  4. D) 1 2 3 1