UPSC Prelims 1998·GS1·science-and-technology·science and technology

Which one of the following types of micro-organisms is most widely used in industries?

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Last updated 23 May 2026, 3:31 pm IST
  1. ABacteria
  2. BBacteria and fungi
  3. CBacteria and algae
  4. DBacteria, micro-algae and fungiCorrect

Explanation

The correct answer is D because all three groups of micro organisms play vital and diverse roles in modern industrial processes. Bacteria are used extensively in the production of antibiotics, organic acids, enzymes, and in waste treatment. Fungi, particularly yeasts and molds, are indispensable for the fermentation industry, bread making, and the production of life saving drugs like penicillin. Micro algae are increasingly utilized for the commercial production of biofuels, pigments, antioxidants, and nutritional supplements. While bacteria and fungi have traditionally been the pillars of industrial microbiology, the inclusion of micro algae in option D reflects the contemporary industrial landscape where all three categories are widely exploited for commercial applications. Therefore, option D is the most comprehensive and accurate choice.
science-and-technology: Which one of the following types of micro-organisms is most widely used in industries?
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