1. Which one is wrongly matched?
Answer:
Explanation:
Coliforms are a type of bacteria, not typically associated with vinegar production. Acetic acid bacteria are responsible for turning alcohol into vinegar.
2. Highest number of antibiotics are produced by:
Answer:
Explanation:
Streptomyces is a genus of Gram-positive bacteria that is known to produce a high number of antibiotics, more than any other genus.
3. One of the following is not a biofertiliser:
Answer:
Explanation:
Bacillus thuringiensis is a bacterium used as a biological pesticide, not a biofertilizer.
4. Secondary sewage treatment is mainly a :
Answer:
Explanation:
Secondary sewage treatment primarily involves biological processes to further treat wastewater after the primary treatment.
5. “Bt” toxin is :
Answer:
Explanation:
Bt toxin, produced by Bacillus thuringiensis, is an intracellular crystalline protein that exhibits insecticidal properties.
6. Spirulina is:
Answer:
Explanation:
Spirulina is a cyanobacterium that is used as a source of dietary protein, termed as single cell protein.
7. Cheese is a product of:
Answer:
Explanation:
Cheese is produced by the fermentation of milk where bacteria or enzymes coagulate the milk, separating it into solid curds and liquid whey.
8. Which one of the following alcoholic drinks is produced without distillation?
Answer:
Explanation:
Wine is produced through fermentation without the process of distillation which is used to produce spirits like whisky, rum, and brandy.
9. Which one of the following processes CO2 is not released?
Answer:
Explanation:
In lactate fermentation, pyruvate from glycolysis is reduced to lactate without the release of CO2, unlike alcoholic fermentation and aerobic respiration where CO2 is released.
10. Which of the following is a fermentation process?
Answer:
Explanation:
Both batch and continuous processes are methods of fermentation used in industrial microbiology.
11. Who showed that Saccharomyces cerevisiae causes fermentation forming products such as beer and buttermilk?
Answer:
Explanation:
Louis Pasteur was the scientist who demonstrated the role of Saccharomyces cerevisiae in fermentation.
12. Rennet is used in
Answer:
Explanation:
Rennet is a complex of enzymes used in the production of cheese to coagulate milk, turning it into curds and whey.
13. Tissue plasminogen activator is
Answer:
Explanation:
Tissue plasminogen activator (tPA) is an enzyme involved in the breakdown of blood clots.
14. Humulin is
Answer:
Explanation:
Humulin is a brand of insulin, which is a protein.
15. Which of the following can be application of fermentation?
Answer:
Explanation:
Fermentation is a versatile process used in various industries including leather tanning, tea curing, and wine production.
16. Enzyme immobilisation is
Answer:
Explanation:
Enzyme immobilization involves the attachment of an enzyme to a solid support or entrapment in a gel, thereby changing it from a soluble to an insoluble state while retaining its activity.
17. Biogas is produced by
Answer:
Explanation:
Biogas is produced through the anaerobic digestion of biomass by methanogenic bacteria, which generate methane as a byproduct.
18. Name the first organic acid produced by microbial fermentation
Answer:
Explanation:
Lactic acid was the first organic acid produced by microbial fermentation by the bacterium Lactobacillus.
19. Azolla has a symbiotic association with:
Answer:
Explanation:
Azolla, a water fern, has a symbiotic association with the cyanobacteria Anabaena azollae, which fixes atmospheric nitrogen, benefiting the plant.
20. Devine and collego are:
Answer:
Explanation:
Devine and Collego are types of bioherbicides used for controlling weed populations in an environmentally friendly manner.
21. Azospirillium and Azotobector for example of…..
Answer:
Explanation:
Both Azospirillium and Azotobactor are examples of free-living nitrogen-fixing bacteria that help in enhancing soil fertility.
22. Which pair is odd?
Answer:
Explanation:
Unlike the other pairs, Streptococcus is not associated with the production of statins.
23. Which living organism works as bio-fertiliser?
Answer:
Explanation:
Azolla acts as a bio-fertilizer due to its ability to fix atmospheric nitrogen in association with Anabaena.
24. Which microorganism is useful in the production of citric acid?
Answer:
Explanation:
Aspergillus niger is a microorganism used in the industrial production of citric acid through the process of fermentation.
25. By which process cheese and toddy is obtained?
Answer:
Explanation:
Both cheese and toddy are obtained through the process of fermentation, where microorganisms play a vital role in breaking down sugars to produce the desired products.
26. The free living fungus Trichoderma can be used for:
Answer:
Explanation:
Trichoderma species are free-living fungi that are very effective in the biological control of several plant pathogenic fungi.
27. Which one of the following processes CO2 is not released?
Answer:
Explanation:
Lactate fermentation converts glucose into lactate without the release of CO2.
28. Which of the following is a fermentation process?
Answer:
Explanation:
Fermentation can be carried out in both batch and continuous processes depending on the production requirements.
29. Who showed that Saccharomyces cerevisiae causes fermentation forming products such as beer and buttermilk?
Answer:
Explanation:
Louis Pasteur was the scientist who demonstrated that Saccharomyces cerevisiae is responsible for the fermentation process in beer and buttermilk production.
30. Rennet is used in:
Answer:
Explanation:
Rennet contains enzymes that coagulate milk, making it an essential ingredient in cheese making.
31. Tissue plasminogen activator is:
Answer:
Explanation:
Tissue plasminogen activator (tPA) is an enzyme that helps to dissolve blood clots, and is used in medical treatment of clot-related conditions.