The tratment of snake-bite by antivenom is an example of 

1. artificially acquired active immunity 

2. artificially acquired passive immunity 

3. naturally acquired passive immunity 

4. specific natural immunity. 

An insect bite may result in inflammation of that spot. This is triggered by the alarm chemicals such as 
(1) histamine and dopamine

(2) histamine and kinins

(3) interferons and opsonin 

(4) interferons and histones 

Two of the body parts which do not appear in MRI may be
(1) molar teeth and eye lens 

(2) scapula and canines 

(3) ligaments and ribs 

(4) tendons and premolars.

A young drug addict used to show symptoms of depressed brain activity, feeling of

calmness, relaxation and drowsiness. Possibly he was taking

1. amphetamine

2. marijuna

3. pethidine

4. valium

Antigen binding site in an antibody is found between 

1. two light chains

2. two heavy chains

3. one heavy and one light chain 

4. either between two light chains or between one heavy and one light chain depending

upon the nature of antigen.

A person who shows unpredictable moods, outbursts of emotion, quarrelsome behaviour and conflicts with others is suffering from

(1) borderline personality disorder (BPD)

(2) mood disorder

(3) addictive disorder

(4) schizophrenia.

When children play bare footed in pools of dirty water and flood water, they may suffer from disease like
(1) leptospirosis and bilharzia

(2) malaria, amoebic dysentery and leptospirosis

(3) bilharzia, infective hepatitis and diarrhoea

(4) guinea worm infection, elephantiasis and amoebic dysentery

Which of the following is an eye disease?

(1) Hepatitis

(2) Measles

(3) Glaucoma

(4) Bronchitis

Smoking addiction is harmful because it produces polycyclic aromatic hydrocarbons, which cause 
(1) reduction in oxygen transport

(2) increase in blood pressure 

(3) cancer 

(4) retardation of growth of foetus

The main reason why antibiotics could not solve all the problems of bacteria mediated diseases is 
(1) insensitivity of the individual following prolonged exposure to antibiotics

(2) inactivation of antibiotics by bacterial enzymes

(3) decreased efficiency of the immune system

(4) the development of mutant strains resistant to antibiotics.