Match List-I with List-II
| List-I | List-II |
|---|---|
| Enzymes/bioactive molecule | Actions |
| (A) Pectinases and proteases | (I) Removing oily stains |
| (B) Streptokinase | (II) Immunosuppressive agent |
| (C) Lipases | (III) Clear bottled juices |
| (D) Cyclosporin A | (IV) Clot buster |
Choose the correct answer from the options given below.
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → (A)-(III), (B)-(IV), (C)-(I), (D)-(II)
(A) Pectinases and proteases — this matches (III) Clear bottled juices. They break down pectin and proteins that make fruit juice cloudy.
(B) Streptokinase — this matches (IV) Clot buster. Made by Streptococcus and modified by genetic engineering, it removes clots from the blood vessels of heart-attack patients.
(C) Lipases — this matches (I) Removing oily stains. Lipases in detergent formulations digest fats and help remove oily stains from laundry.
(D) Cyclosporin A — this matches (II) Immunosuppressive agent. Made by the fungus Trichoderma polysporum, it is given to organ-transplant patients so that the new organ is not rejected.
NCERT Extract:
Chemicals, Enzymes and other Bioactive Molecules – “… Microbes are also used for production of enzymes. Lipases are used in detergent formulations and are helpful in removing oily stains from the laundry. You must have noticed that bottled fruit juices bought from the market are clearer as compared to those made at home. This is because the bottled juices are clarified by the use of pectinases and proteases. Streptokinase produced by the bacterium Streptococcus and modified by genetic engineering is used as a ‘clot buster’ for removing clots from the blood vessels of patients who have undergone myocardial infarction leading to heart attack. Another bioactive molecule, cyclosporin A, that is used as an immunosuppressive agent in organ-transplant patients, is produced by the fungus Trichoderma polysporum.”