Tag: immune system

Quizzes (14) Questions (95)

Questions Related to immune system

Multiple choice zoology immune system active and passive immunity immunity related disorders and problems diseases and immunity

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.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Azathioprine is a purine analogue that interferes with DNA synthesis, thereby inhibiting mitosis and the proliferation of T and B cells. Since both A and B describe the mechanism of action, D is the correct choice.

Multiple choice zoology immune system active and passive immunity immunity related disorders and problems diseases and immunity

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

  1. Cyclosporin A

  2. Rapamycin

  3. Tetracycline

  4. Both A and B
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Both Cyclosporin A (derived from Tolypocladium inflatum) and Rapamycin (derived from Streptomyces hygroscopicus) are well-known fungal metabolites used as potent immunosuppressants in transplantation.

Multiple choice zoology immune system active and passive immunity immunity related disorders and problems diseases and immunity

Cyclosporin is useful in

  1. Prophylactic for viruses

  2. Immunosuppressant

  3. Prophylactic for marasmus

  4. Treating allergic eozema
Reveal answer Fill a bubble to check yourself
B Correct answer
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'.

Multiple choice zoology immune system vaccine and immunization infectious diseases - transmission and prevention infectious diseases and how to prevent them

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

  1. Rubella vaccine

  2. Hepatitis B vaccine

  3. Tetanus vaccine

  4. Influenza vaccine
Reveal answer Fill a bubble to check yourself
A Correct answer
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'

Multiple choice zoology immune system vaccine and immunization infectious diseases - transmission and prevention infectious diseases and how to prevent them

Vaccine is

  1. Live oral pathogen

  2. Inactivated antigen

  3. Inactivated pathogen

  4. Complete pathogen
Reveal answer Fill a bubble to check yourself
C Correct answer
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.