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NEET 2017 · BiologyPrevious Year Question

Which of the following is correctly matched for the product produced by them?

Answer: (D) Saccharomyces cerevisiae : Ethanol. Answer: (d) Saccharomyces cerevisiae : Ethanol Solution: Saccharomyces cerevisiae (brewer's yeast) is used for commercial production of ethanol, so this pair is correct.

  1. A.Acetobacter aceti : Antibiotics
  2. B.Methanobacterium : Lactic acid
  3. C.Penicillium notatum : Acetic acid
  4. D.Saccharomyces cerevisiae : Ethanol✓

Correct Answer

(D) Saccharomyces cerevisiae : Ethanol

Solution & Explanation

Answer: (d) Saccharomyces cerevisiae : Ethanol Solution: Saccharomyces cerevisiae (brewer's yeast) is used for commercial production of ethanol, so this pair is correct. The others are mismatched: Acetobacter aceti produces acetic acid (not antibiotics), Methanobacterium produces methane/biogas (not lactic acid), and Penicillium notatum produces the antibiotic penicillin (not acetic acid). NCERT Reference: Ch 8, p.153, line 15 — "Yeast (Saccharomyces cerevisiae) is used for commercial production"

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