Tag: immune system

Questions Related to immune system

Azathioprine is given before and after organ transplant because

  1. It inhibits mitosis.

  2. It decreases T and B cell proliferation.

  3. It inhibits meiosis.

  4. Both A and B.


Correct Option: D

 ............. are fungal metabolites with immunosuppressive properties.

  1. Cyclosporin A

  2. Rapamycin

  3. Tetracycline

  4. Both A and B


Correct Option: D

Cyclosporin is useful in

  1. Prophylactic for viruses

  2. Immunosuppressant

  3. Prophylactic for marasmus

  4. Treating allergic eozema


Correct Option: B
Explanation:

Cyclosporin is an effective immunosuppressant used in the treatment of autoimmune disorders (such as rheumatoid arthritis) and in organ transplantation to prevent rejection. Cyclosporin lowers the activity of T-cells and hence, suppressing the activity of the immune system. Cyclosporin was isolated from the fungus Tolypocladium inflatum. Common side effects include high blood pressure, headache, kidney problems, increased hair growth, and vomiting. So, the correct answer is 'Immunosuppressant'.

Vaccines which are to be avoided during pregnancy are all except:

  1. Rubella vaccine

  2. Hepatitis B vaccine

  3. Tetanus vaccine

  4. Influenza vaccine


Correct Option: A
Explanation:

  • Vaccines which are to be avoided during pregnancy include rubella vaccine, small pox vaccine and oral polio-myelitis vaccine

So, the correct answer is 'Rubella vaccine'

Vaccine is

  1. Live oral pathogen

  2. Inactivated antigen

  3. Inactivated pathogen

  4. Complete pathogen


Correct Option: C
Explanation:

A vaccine is a biological preparation that provides acquired immunity to a particular disease. A vaccine typically contains an agent that resembles a disease-causing micro-organism and is often made from weakened (attenuated) or killed forms of the pathogen, its toxins or one of its surface proteins.
Therefore, the correct answer is option C.