Q4 of 70 Page 55

Given below are the pairs of pathogens and the diseases caused by them. Which out of these is not a matching pair and why?

In the above question option ‘c’ is incorrectly matched. As Microsporum is a fungi which causes Ringworms, the disease’s name is a misnomer as it is caused by fungi and not by worms.The disease filariasis is caused by an infection caused by roundworms of Filarioidea genus.


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2

The immune system of a person is suppressed. In the ELISA test, he was found positive to a pathogen.

a. Name the disease the patient is suffering from.


b. What is the causative organism?


c. Which cells of body are affected by the pathogen?


 3

Where are B-cells and T-cells formed? How do they differ from each other?

 5

What would happen to immune system, if thymus gland is removed from the body of a person?

 6

Many microbial pathogens enter the gut of humans along with food. What are the preventive barriers to protect the body from such pathogens? What type of immunity do you observe in this case?