Match Column-I with Column-II and select the correct option using the codes given below: Column-I a. Citric acid b. Cyclosporin A c. Statins d. Butyric acid Column-II (i) Trichoderma (ii) Clostridium (iii) Aspergillus (iv) Monascus Choose the correct option.
Answer: (B) a-(iii), b-(i), c-(iv), d-(ii). Answer: (B) a-(iii), b-(i), c-(iv), d-(ii) Solution: Correct pairs are Citric acid–Aspergillus (iii), Cyclosporin A–Trichoderma (i), Statins–Monascus (iv), and Butyric acid–Clostridium (ii).
- A.a-(iii), b-(i), c-(ii), d-(iv)
- B.a-(iii), b-(i), c-(iv), d-(ii)✓
- C.a-(i), b-(iv), c-(ii), d-(iii)
- D.a-(iii), b-(iv), c-(i), d-(ii)
Correct Answer
(B) a-(iii), b-(i), c-(iv), d-(ii)
Solution & Explanation
Answer: (B) a-(iii), b-(i), c-(iv), d-(ii) Solution: Correct pairs are Citric acid–Aspergillus (iii), Cyclosporin A–Trichoderma (i), Statins–Monascus (iv), and Butyric acid–Clostridium (ii). Aspergillus niger produces citric acid and Clostridium butylicum produces butyric acid (both acid producers); cyclosporin A is from Trichoderma polysporum and statins from Monascus purpureus. NCERT Reference: Ch 8, p.153, line 12 — "acid producers are Aspergillus niger (a fungus) of citric acid, Acetobacter"