biology : class12 Cyclosporin A : Food Processing, Industrial Production, Sewage Treatment, Energy Production : Microbes in Human Welfare MCQ Questions and Answers
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Cyclosporin A
MCQ questions and answers.
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MCQ Questions
1. Cyclosporin A is produced by which microorganism?
A.
Trichoderma polysporum
B.
Lactobacillus
C.
Saccharomyces cerevisiae
D.
Aspergillus niger
Correct Answer:
Trichoderma polysporum
Explanation:
Cyclosporin A is produced by the fungus Trichoderma polysporum.
2. What is the main medical use of Cyclosporin A?
A.
Treating bacterial infections
B.
Suppressing immune responses
C.
Digesting proteins
D.
Increasing blood clotting
Correct Answer:
Suppressing immune responses
Explanation:
Cyclosporin A acts as an immunosuppressive drug, meaning it suppresses immune responses.
3. Cyclosporin A is especially useful for patients who have undergone which procedure?
A.
Organ transplantation
B.
Blood pressure measurement
C.
Vaccination
D.
Dental cleaning
Correct Answer:
Organ transplantation
Explanation:
Cyclosporin A is used in organ transplant patients to suppress immune rejection of the transplanted organ.
4. Cyclosporin A belongs to which category of drugs?
A.
Immunosuppressive drugs
B.
Antacid drugs
C.
Analgesic drugs
D.
Antiseptic drugs
Correct Answer:
Immunosuppressive drugs
Explanation:
Cyclosporin A is classified as an immunosuppressive drug because it reduces immune system activity.
5. Which organism is associated with the commercial production of Cyclosporin A?
A.
Trichoderma polysporum
B.
Rhizobium leguminosarum
C.
Penicillium chrysogenum
D.
Spirulina maxima
Correct Answer:
Trichoderma polysporum
Explanation:
The fungus Trichoderma polysporum produces Cyclosporin A.
6. Why is Cyclosporin A given after organ transplantation?
A.
To prevent immune rejection
B.
To increase red blood cell production
C.
To destroy the transplanted organ
D.
To improve bone formation
Correct Answer:
To prevent immune rejection
Explanation:
Cyclosporin A suppresses the recipient's immune response, helping to prevent rejection of the transplanted organ.
7. The action of Cyclosporin A is most directly related to the body's:
A.
Immune system
B.
Digestive system
C.
Skeletal system
D.
Respiratory system
Correct Answer:
Immune system
Explanation:
Cyclosporin A acts on immune responses, so its main effect is related to the immune system.
8. Which statement about Cyclosporin A is correct?
A.
It is produced by a fungus and used as an immunosuppressant.
B.
It is produced by bacteria and used as a food preservative.
C.
It is produced by algae and used as a vitamin.
D.
It is produced by yeast and used as a digestive enzyme.
Correct Answer:
It is produced by a fungus and used as an immunosuppressant.
Explanation:
Cyclosporin A is obtained from the fungus Trichoderma polysporum and is used to suppress immune responses.
9. Cyclosporin A helps transplanted organs mainly by reducing:
A.
Immune attack by the recipient
B.
Oxygen supply to the organ
C.
Nutrient absorption in the intestine
D.
Formation of bone tissue
Correct Answer:
Immune attack by the recipient
Explanation:
Its immunosuppressive action reduces the recipient's immune attack against the transplanted organ.
10. Which microorganism is not the source of Cyclosporin A?
A.
Trichoderma polysporum
B.
A fungus producing the immunosuppressant
C.
The organism associated with Cyclosporin A production
D.
Lactobacillus
Correct Answer:
Lactobacillus
Explanation:
Cyclosporin A is produced by Trichoderma polysporum, not by Lactobacillus.
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