Q. No.Consider the two statements:
I:
The arm of the acquired immunity due to B lymphocytes is called as the humoral response.
II:
B cells, upon differentiation into plasma cells, secrete antibodies that are present in the blood.
1. Both I and II are correct and II explains I.
2. Both I and II are correct but II does not explain I.
3. Only II is correct.
4. Both I and II are incorrect.
2. Both I and II are correct but II does not explain I.
3. Only II is correct.
4. Both I and II are incorrect.
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 |
What word correctly denotes an enhanced reaction of the body's immune system to an antigen which is related to one previously encountered?
| 1. | Booster | 2. | Primary |
| 3. | Anamnestic | 4. | Magnified |
Interferons are secreted by:
| 1. | Virus infected cells | 2. | The viruses themselves |
| 3. | Natural killer cells | 4. | T helper cells |
Which of the following cells can phagocytose microbes only in tissues?
| 1. | Neutrophil | 2. | Natural killer cells |
| 3. | Macrophages | 4. | Monocytes |
Which of the following diseases in man is not transmitted by a mosquito bite?
| 1. | Dengue fever | 2. | Filariasis |
| 3. | Ascariasis | 4. | Malaria |
© 2025 GoodEd Technologies Pvt. Ltd.