Q. No.Cells involved in specific immune mechanism are
1. Erythrocytes
2. Lymphocytes
3. Eosinophils
4.Thrombocytes
2. Lymphocytes
3. Eosinophils
4.Thrombocytes
Which of the following statements is not correct about allergies?
| 1. | Allergic tendency can be genetically passed on from parent to child |
| 2. | It is characterised by presence of large titre of lgE antibodies |
| 3. | Allergic response involves mast cells and basophils |
| 4. | Children living in metro cities are less sensitive to the allergens present in the environment |
Take a glance of a part of the life cycle of plasmodium given below as events A, B, C and D along with their description
Events Description
 |
Parasites reproduce asexually in the red bloods cells, bursting the red blood cells and causing cycles of fever |
| Sexual stages (gametocytes) develop in intestine of mosquito | |
| Fertilization and development take place in intestine/stomach of mosquito | |
| Mature infective stages (sporozoites) escape from the intestine and migrate to the mosquito salivary glands |
How many of the above events are correctly described?
1. One
2. Two
3. Three
4. Four
Fill in the blanks in the different columns of the table given below
| Disease | Causal organism and Part it inputs |
Medium of transfer |
| Common cold | A | Droplets from sneezing of infected persons |
| B | Trichophyton Skin, nails and scalp |
Using towels of infected individuals |
| Pneumonia | C | Droplets/aerosols Released by an infected person, sharing utensils |
| Filariasis | Wuchereria Lymphatic vessels | D |
In which one of the following options all the blanks A, B, C and D are correctly filled.
1. A- Rhinovirus. Nose and respiratory passage not lungs
B - Ringworm
C - Haemophilus influenzae. Alveoli of lungs
D - Contaminated food and water
2. A- Coryza virus. Alveoli of lungs
B - Ringworm
C - Streptococcus pneumoniae. Nose and respiratory passage
D - Culex mosquito
3. A- Rhinovirus. Nose and respiratory passage not lungs
B - Ascariasis
C - Haemophilus influenzae. Lungs
D - Culex mosquito
4. A- Rhinovirus. Nose and respiratory passage not lungs
B - Ringworm
C - Haemophilus influenzae. Alveoli of lungs
D - Culex mosquito
Mark out the incorrect statement regarding infection of Entamoeba histolytica
| 1. | It is a type of monogenetic parasite |
| 2. | Stools characterised with excess mucous and blood clots |
| 3. | It is the parasite of small intestine of the human being |
| 4. | Housefly act as mechanical carriers of the cysts to contaminate the food and water |
Release of which of the following is responsible for recurrent malarial symptoms?
1 Sporozoites
2 Haemozoin
3 Gametes in blood
4 Hemoglobin
Mucus coating of the epithelium lining the respiratory, gastrointestinal and urogenital tracts, helps in trapping microbes entering our body. This is included in which of the following barriers?
1 Physical barriers
2 Physiological barriers
3 Cellular barriers
4 Cytokines barriers
Which of the following is mismatched with respect to the following events which occur in the life cycle?
| 1 Erythrocytic schizogony | : The rupture of RBCs is associated with the release of a toxic substance hemozoin, which is responsible for the chill and high fever |
| 2 Gametocytes | : Sexual stages develop in intestine of mosquito |
| 3 Fertilization | : Takes place in intestine/stomach of mosquito |
| 4 Schizogony in liver cells | : The parasite reproduces asexually in liver cells bursting the cell and releasing merozoites into the blood |
In malaria infection the rupture of RBCs is associated with release of a toxic substance called
1 Hypnotoxin
2 Haemozoin
3 Ascaron
4 Haemotoxin
(i) Thymus
(ii) Spleen
(iii) Appendix
(iv) MALT
(v) Bone marrow
How many of the above are not secondary lymphoid organs?
1. ii, iii, iv only
2. i, v only
3. i, ii, iii, iv, v
4. i, ii, iii, iv only
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