Which one of the following acts as a physiological barrier to the entry of microorganisms

in human body?

1. Tears

2. Monocytes

3. Skin

4. Epithelium of urogenital tract

Where will you look for the sporozoites of the malarial parasite?

1. Red blood corpuscles of humans suffering from malaria

2. Spleen of infected humans

3. Salivary glands of freshly moulted female Anopheles mosquito

4. Saliva of infected female Anopheles mosquito

Select the correct statement from the ones given below

1. Barbiturates when given to criminals make them tell the truth

2. Morphine is often given to persons who have under gone surgery as a pain killer

3. Chewing tobacco lowers blood pressure and heart rate

4. Cocaine is given to patients after surgery as it stimulates recovery

Ringworm in humans is caused by

1. bacteria

2. fungi

3. nematodes

4. viruses

Which one of the following statements is correct with respect to AIDS?

1. The HIV can be transmitted through eating food together with an infected person 

2. Drug addicts are least susceptible to HIV infection 

3. AIDS patients are being fully cured cent percent with proper care and nutrition 

4. The causative HIV retrovirus enters helper T-lymphocytes thus reducing their numbers 

Consider the following four statements(1-4) regarding kidney transplant and select the two correct ones out of these.

The two correct statements are

1. (2) and (3) 
2. (3) and (4)
3. (1) and (3) 
4. (1) and (2)

Which of the following is a pair of viral diseases ?

1. Ringworm, AIDS

2. Common cold, AIDS

3. Dysentery, common cold

4. Typhoid, tuberculosis

Use of anti-histamines and steroids give a quick relief from

1. allergy

2. nausea

3. cough

4. headache

Globulins contained in human blood plasma are primarily involved in

1. defence mechanisms of body

2. osmotic balance of body fluids

3. oxygen transport in the blood

4. clotting of blood

Which one of the following statements is correct?

1. Patients, who had undergone surgery are given cannabinoids to relieve pain

2. Benign tumours show the property of metastasis

3. Heroin accelerates body functions

4. Malignant tumours may exhibit metastasis