Match List-I with List-II:
| List-I | List-II |
|---|---|
| A. Statins | i. Biogas |
| B. Dung | ii. Saccharomyces cerevisiae |
| C. Ethanol production | iii. Monascus purpureus |
| D. Penicillin | iv. Penicillium notatum |
Choose the correct answer from the options given below:
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → A-iii, B-i, C-ii, D-iv
Microbes give us medicines, fuel and alcohol. Each item in List-I is matched with the microbe or product it is linked to in NCERT.
(A) Statins — this matches (iii) Monascus purpureus. Statins produced by this yeast are used as blood-cholesterol lowering agents.
(B) Dung — this matches (i) Biogas. Cattle dung (gobar) is rich in methanogens, so it is used to generate biogas, commonly called gobar gas.
(C) Ethanol production — this matches (ii) Saccharomyces cerevisiae. This yeast is used for the commercial production of ethanol.
(D) Penicillin — this matches (iv) Penicillium notatum. Fleming named the antibiotic after the mould that produced it.
So the matching is A-iii, B-i, C-ii, D-iv.
NCERT Extract:
Chemicals, Enzymes and other Bioactive Molecules – “… Yeast (Saccharomyces cerevisiae) is used for commercial production of ethanol. … Statins produced by the yeast Monascus purpureus have been commercialised as blood-cholesterol lowering agents.”
Microbes in Production of Biogas – “… Thus, the excreta (dung) of cattle, commonly called gobar, is rich in these bacteria. Dung can be used for generation of biogas, commonly called gobar gas.”
Antibiotics – “… He found out that it was due to a chemical produced by the mould and he named it Penicillin after the mould Penicillium notatum.”