Humans have acquired an immune system that produces antibodies to neutralize pathogens. Still innate immune system is present at the time of birth because it:
1. | is very specific and uses different macrophages |
2. | produces memory cells for mounting a fast secondary response |
3. | has natural killer cells that can phagocytose and destroy microbes |
4. | provides passive immunity |
Coca alkaloid or cocaine is obtained from:
1. | Papaver somniferum | 2. | Atropa belladonna |
3. | Erythroxylum coca | 4. | Datura |
The drug called 'Heroin' is synthesized by:
1. | nitration of morphine | 2. | methylation of morphine |
3. | acetylation of morphine | 4. | glycosylation of morphine |
Identify the correct pair representing the causative agent of typhoid fever and the confirmatory test for typhoid.
1. Salmonella typhi/Widal test
2. Plasmodium vivax/UTI test
3. Streptococcus pneumoniae/Widal test
4. Salmonella typhi/Anthrone test
Colostrum, the yellowish fluid, secreted by the mother during the initial days of lactation is very essential to impart immunity to newborn infants because it contains:
1. | Immunoglobulin A | 2. | Natural killer cells |
3. | Monocytes | 4. | Macrophages |
Which of the following immune responses is responsible for the rejection of kidney graft?
1. Cell-mediated immune response
2. Auto-immune response
3. Humoral immune response
4. Inflammatory immune response
The infectious stage of plasmodium that enters the human body is:
1. Sporozoites
2. Female gametocytes
3. Male gametocytes
4. Trophozoites
Match the following diseases with the causative organism and select the correct option.
Column-I | Column-II | ||
(a) | Typhoid | (i) | Wuchereria |
(b) | Pneumonia | (ii) | Plasmodium |
(c) | Filariasis | (iii) | Salmonella |
(d) | Malaria | (iv) | Haemophilus |
(a) | (b) | (c) | (d) | |
1. | (iii) | (iv) | (i) | (ii) |
2. | (ii) | (i) | (iii) | (iv) |
3. | (iv) | (i) | (ii) | (iii) |
4. | (i) | (iii) | (ii) | (iv) |
Identify the wrong statement with a reference to immunity.
1. | When ready-made antibodies are directly given, it is called “Passive immunity". |
2. | Active immunity is quick and gives a full response. |
3. | Foetus receives some antibodies from the mother, it is an example of passive immunity |
4. | When exposed to antigen(living or dead) antibodies are produced in the host's body. It is called "Active immunity |
Match the following columns and select the correct option:
Column I | Column II | ||
(i) | Typhoid | (a) | Haemophilus influenzae |
(ii) | Malaria | (b) | Wuchereria bancrofti |
(iii) | Pneumonia | (c) | Plasmodium vivax |
(iv) | Filariasis | (d) | Salmonella typhi |
Options: | (i) | (ii) | (iii) | (iv) |
1. | (d) | (c) | (a) | (b) |
2. | (c) | (d) | (b) | (a) |
3. | (a) | (c) | (b) | (d) |
4. | (a) | (b) | (d) | (c) |