Q.

Which of the following is correctly matched for the product produced by them              [2017]

1 Methanobacterium : Lactic acid  
2 Penicillium notatum : Acetic acid  
3 Saccharomyces cerevisiae : Ethanol  
4 Acetobacter aceti : Antibiotics  

Ans.

(3)

Methanobacterium is useful in the production of biogas. Penicillium notatum is used to produce penicillin, an antibiotic. Acetobacter aceti is used to obtain acetic acid.