2025 Microbes in Human WelfareMicrobes in Household Products vs Industrial Products Medium Question 5 of 81 in Microbes in Human Welfare

Which of the following microbes is NOT involved in the preparation of household products?
A. Aspergillus niger
B. Lactobacillus
C. Saccharomyces cerevisiae
D. Trichoderma polysporum
E. Propionibacterium sharmanii
Choose the correct answer from the options given below:

A A and B only
B A and D only
C C and D only
D C and E only

The answer is B.

Solution

Aspergillus niger (citric acid) and Trichoderma polysporum (cyclosporin A) are used in industrial chemicals and medicine, not household products.

Lactobacillus (curd), Saccharomyces cerevisiae (bread/dough), and Propionibacterium sharmanii (Swiss cheese) are household product microbes. Aspergillus niger (industrial citric acid) and Trichoderma polysporum (cyclosporin A) are used in industrial/pharmaceutical biotechnology.

Concept Household Microbes

Microbes in Human Welfare in past papers

81 questions from this chapter have appeared across 26 exam years.