Match the following organisms with the products they produce: Column-I (a) Lactobacillus (b) Saccharomyces cerevisiae (c) Aspergillus niger (d) Acetobacter aceti Column-II (i) Cheese (ii) Curd (iii) Citric Acid (iv) Bread (v) Acetic acid Choose the correct option.
Answer: (B) (a)-(ii), (b)-(iv), (c)-(iii), (d)-(v). Answer: (b) (a)-(ii), (b)-(iv), (c)-(iii), (d)-(v) Solution: Lactobacillus converts milk to curd, Saccharomyces cerevisiae (baker's yeast) ferments dough for bread, Aspergillus niger produces citric acid, and Acetobacter aceti produces acetic acid.
- A.(a)-(ii), (b)-(iv), (c)-(v), (d)-(iii)
- B.(a)-(ii), (b)-(iv), (c)-(iii), (d)-(v)✓
- C.(a)-(iii), (b)-(iv), (c)-(v), (d)-(i)
- D.(a)-(ii), (b)-(i), (c)-(iii), (d)-(v)
Correct Answer
(B) (a)-(ii), (b)-(iv), (c)-(iii), (d)-(v)
Solution & Explanation
Answer: (b) (a)-(ii), (b)-(iv), (c)-(iii), (d)-(v) Solution: Lactobacillus converts milk to curd, Saccharomyces cerevisiae (baker's yeast) ferments dough for bread, Aspergillus niger produces citric acid, and Acetobacter aceti produces acetic acid. This matches the NCERT list of acid producers and household/bread microbes. NCERT Reference: Ch 8, p.153, line 12 — "Aspergillus niger (a fungus) of citric acid, Acetobacter"