Human Health and Disease

Match each disease with its correct type of vaccine

1. A - (i), B - (ii), C - (iv), D - (iii)
2. A - (iv), B - (iii), C - (ii), D - (i)
3. A - (ii), B - (i), C - (iii), D - (iv)
4. A - (iii), B - (ii), C - (iv), D - (i)

The active form of Entamoeba histolytica feeds upon

1. food in intestine
2. mucosa and submucosa of colon only
3. blood only
4. erythrocytes, mucosa and submucosa of colon

HIV that causes AIDS, first starts destroying

1. thrombocytes
2. leucocytes
3. helper T-lymphocytes
4. B-lymphocytes

Which is the particular type of drug that is obtained from the plant whose one flowering branch is shown below? [Figure]

1. Hallucinogen
2. Stimulant
3. Depressant
4. Pain-killer

At which stage of HIV infection does one usually show symptoms of AIDS ?

1. Within 15 days of sexual contact with an infected person.
2. When the infected retro virus enters host cells.
3. When HIV damages large number of helper T-Lymphocytes.
4. When the viral DNA is produced by reverse transcriptase.

Infection of Ascaris usually occurs by :

1. Tsetse fly
2. mosquito bite
3. drinking water containing eggs of Ascaris
4. eating imperfectly cooked pork

Identify the site where Wuchereria bancrofti is normally found on human body :

1. Blood vessels of the thigh region
2. Lymphatic vessels of the lower limbs
3. Muscles of the legs
4. Skin between the fingers

Which one of the following is a hallucinogenic drug?

1. Morphine
2. Opium
3. Caffeine
4. Lysergic acid diethylamide

Identify the molecules (a) and (b) shown below and select the right option giving their source and use. [figure]

1. Molecule (b) Heroin, Source Cannabis sativa, Use Depressant and slows down body functions
2. Molecule (a) Morphine, Source Papaver somniferum, Use Sedative and pain killer
3. Molecule (a) Cocaine, Source Erythroxylum coca, Use Accelerates the transport of dopamine
4. Molecule (b) Cannabinoid, Source Atropa belladonna, Use Produces hallucinations

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

1. Rejection of a kidney graft is the function of B-lymphocytes.
2. Preformed antibodies need to be injected to treat the bite by a viper snake.
3. The antibodies against smallpox pathogen are produced by T-lymphocytes
4. Antibodies are protein molecules, each of which has four light chains.