Microbes: Ethanol & Enzyme Production — NEET Biology
✅ Asked in NEET 2026Yeast (Saccharomyces cerevisiae) is used for commercial production of ethanol. Microbes are also used for production of enzymes. Lipases are used in detergent formulations and are helpful in removing oily stains from the laundry. You must have noticed that bottled fruit juices bought from the market are clearer as compared to those made at home. This is because the bottled juices are clarified by the use of pectinases and proteases. Streptokinase produced by the bacterium Streptococcus and modified by genetic engineering is used as a 'clot buster' for removing clots from the blood vessels of patients who have undergone myocardial infarction leading to heart attack.
NTA tests how students identify which microbes produce specific products and their applications. Saccharomyces cerevisiae ferments glucose to ethanol commercially, while bacteria like Streptococcus produce streptokinase. Students mistake enzyme applications—forgetting that lipases remove oil from clothes, pectinases/proteases clarify juices, and streptokinase dissolves blood clots. The trap is mixing up which enzyme does what job. Remember: match the microbe to its product AND the product's application. This concept appears frequently because it combines microbial physiology with real-world biotechnology—perfect for application-based NEET questions testing both knowledge and reasoning skills.
This paragraph was tested 2 times in NEET.
Match List I with List II — A. Streptokinase, B. Statins, C. Lipases, D. Cyclosporin A.
Match the following list of microbes and their importance: (AIPMT 2015)
Through deep analysis of NEET and NTA, 88 of 90 questions from the NEET 2026 paper were matched straight from the MedicNEET Biology question bank.
88/90MedicNEET's Biology question bank is built from the same NCERT lines NTA picks repeatedly. Not random MCQs — questions crafted exactly like NTA crafts them.