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UPSC Prelims 2022 Paper-1 📅 05 Jun, 2022

Consider the following statements in respect of probiotics:
1. Probiotics are made of both bacteria and yeast.
2. The organisms in probiotics are found in foods we ingest but they do not naturally occur in our gut.
3. Probiotics help in the digestion of milk sugars.

Which of the statements given above is/are correct?

A
(a) 1 only
B
(b) 2 only
C
(c) 1 and 3
D
(d) 2 and 3
Result Summary
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UPSC Prelims
2022 • 05 Jun, 2022 • Paper-1
Consider the following statements in respect of probiotics:
1. Probiotics are made of both bacteria and yeast.
2. The organisms in probiotics are found in foods we ingest but they do not naturally occur in our gut.
3. Probiotics help in the digestion of milk sugars.

Which of the statements given above is/are correct?
Correct Answer
(c) 1 and 3
Microbial Composition: Statement 1 is correct. While the general public mostly associates probiotics with beneficial bacteria (like strains of Lactobacillus and......
Ref/Book : UPSC Prelims 2022
Ref. Subject Science & Technology
Chapter -
Ref. Topic Biology & Biotechnology
Pg. No -
💡 Analysis & Explanation
Microbial Composition ▼
Statement 1 is correct. While the general public mostly associates probiotics with beneficial bacteria (like strains of Lactobacillus and Bifidobacterium), certain strains of beneficial yeast (such as Saccharomyces boulardii) are also widely proven and used clinically as probiotics.
Natural Gut Flora ▼
Statement 2 is entirely incorrect. Many of the live microorganisms found in high-quality probiotic supplements and fermented foods are identical or virtually identical to the beneficial, symbiotic microbes that already live naturally in a healthy human gastrointestinal tract.
Digestive Aid ▼
Statement 3 is correct. Specific probiotic strains actively produce the enzyme lactase in the gut, which directly assists the human body in breaking down and digesting lactose (complex milk sugars), providing significant relief for lactose-intolerant individuals.
Conclusion ▼
Statements 1 and 3 reflect correct microbiological facts.
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