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What does 'T' stands for in DPT vaccine?
(d) : DPT vaccine is a combined vaccine against diphtheria, whooping cough (pertussis), and tetanus now replaced by the DTaP/IPV/Hib and DTaP/IPV vaccines
Which of the following statements is correct?
1. Common cold - Droplet Infection.
2. Typhoid - Contaminated food & water.
3. AIDS - Shaking hands.
4. Ringworm - Using infected towels.
(d): Common cold can take place from one person to other as it it a communicable in nature. A healthy person can get infected by being in close vicinity of infected person when he/she sneezes, coughs, as the droplets generted by sneeze and cough contain infecting agents. Typhoid occurs by the intake of contaminated water & food. While ringworm is one of the skin disease which can transfer from one person to other by the use of infected towel & handkerchief. AIDS (Acquired Immuno deficiency) does not occur or transfer by shanking hands.
Choose the correctly matched pair from the following.
(a) : AIDS is caused by HIV virus, Gonorrhoea is caused by bacteria Neisseria gonorrhoeae. Diphtheria is caused by bacteria Corynebacterium diphtheria. Ringworm disease is caused by fungus Trichophyton, Epidermophyton and Microsporum, tuberculosis is caused by a bacterium called Mycobacterium tuberculosis.
Which of the following is not a character of cancerous cells in our body ?
(a) : Normal cells show the property of contact inhibition, by virtue of which contact with other cells inhibits their uncontrolled growth. Cancer cells appears to have lost this property.
Which of the following pathogens is not transmitted by vector?
(a): Salmonella typhi (Causal organism of typhoid) is transmitted by faecal oral route and not by a vector. The alpha viruses are transmitted by insect vectors, most commonly by mosquitoes. Plasmodium (malarial parasite) is transmitted by female Anopheles mosquito and Wuchereria bancrofti (filarial worm) is transmitted by female Culex mosquito
Which one of the following is not derived from plants?
(b): DDT (Dichloro diphenyl trichloroethane) is a colourless, crystalline, tasteless and almost odourless organochloride known for its insecticidal properties. DDT is not derived from any plant rather it is prepared by the chemical reactions of some chemical compounds.
Opioids (opiates) are the analgesic drugs that are derived from latex of unripe fruits of poppy plant, Papaver somniferum. Similarly, cocaine and cannabinoids are the drugs derived from Erythroxylon Coca (Coca plant) and Cannabis sativa (Hemp plant) respectively.
When plants/animals are infected with virus, they may produce an anti-viral substance that is capable of inhibiting the multiplication of that virus. Identify the correct name of this substance.
(d): Virus-infected cells secrete proteins called interferons which protect non-infected cells from further viral infection.
Which of the following factor is incorrect for the low levels of immune response during Plasmodium infection?
(d) The Plasmodium infects the phagocytic cells of the body and destroys them. This leads to a rapid decline in the immune response generated against this pathogen.
A drug addict showed symptoms such as increased appetite, chest pain, redness of eyes, increased urination. He was possibly taking
The drug addict was possibly taking cannabis compounds. The receptors for these are mainly present in brain. These are obtained from dried leaves and flowers of the hemp plants, (cannabis sp.) Regular use causes addiction.
The disease caused by Leishmania and transmitted by Phlebotomus is
Kala-azar is caused by protozoan Leishmania donovani. It attacks the liver, lymph glands and leucocytes of man, dog and cat and is transmitted by sandfly, phlebotomus sp.
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