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Chapters
2: Human Reproduction
3: Reproductive Health
4: Principles of Inheritance and Variation
5: Molecular Genetics
6: Evolution
7: Human Health and Diseases
8: Immunology
▶ 9: Microbes in Human Welfare
10: Applications of Biotechnology
11: Organisms and Populations
12: Biodiversity and its Conservation
13: Environmental Issues
![Samacheer Kalvi solutions for Biology (Zoology) [English] Class 12 TN Board chapter 9 - Microbes in Human Welfare - Shaalaa.com](/images/biology-zoology-english-class-12-tn-board_6:5f2b1b2038084cf381bfa42c826a928c.jpg "Samacheer Kalvi solutions for Biology (Zoology) [English] Class 12 TN Board chapter 9 - Microbes in Human Welfare")
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Solutions for Chapter 9: Microbes in Human Welfare
Below listed, you can find solutions for Chapter 9 of Tamil Nadu Board of Secondary Education Samacheer Kalvi for Biology (Zoology) [English] Class 12 TN Board.
Samacheer Kalvi solutions for Biology (Zoology) [English] Class 12 TN Board 9 Microbes in Human Welfare Evaluation [Page 155]
Which of the following microorganism is used for production of citric acid in industries?
Lactobacillus bulgaris
Penicillium citrinum
Aspergillus niger
Rhizopus nigricans
Which of the following pair is correctly matched for the product produced by them?
Acetobacter aceti - Antibiotics
Methanobacterium - Lactic acid
Penicilium notatum - Acetic acid
Saccharomyces cerevisiae - Ethanol
The most common substrate used in distilleries for the production of ethanol is _______.
Soyameal
Groundgram
Molasses
Corn mea
Cyclosporin - A is an immunosuppressive drug produced from ____________.
Aspergillus niger
Manascus purpureus
Penicillium notatum
Trichoderma polysporum
CO2 is not released during ________.
Alcoholic fermentation
Lactate fermentation
Aerobic respiration in animals
Aerobic respiration in plants
The purpose of biological treatment of waste water is to ______.
Reduce BOD
Increase BOD
Reduce sedimentation
Increase sedimentation
The gases produced in anaerobic sludge digesters are _______.
Methane, oxygen and hydrogen sulphide
Hydrogen sulphide, methane and sulphur dioxide
Hydrogen sulphide, nitrogen and methane
Methane, hydrogen sulphide and CO2
How is milk converted into curd? Explain the process of curd formation.
Give any two bioactive molecules produced by microbes and state their uses.
Define the following term
Antibiotics
Define the following term
Zymology
Define the following terms
Superbug
Write short notes on the following:
Microbial fuel cells
Write short notes on the following:
Ideonella sakaiensis
Write short notes on the following:
Brewer's yeast
List the advantages of biogas plants in rural areas.
When does antibiotic resistance develop?
What is referred to as industrial alcohol? Briefly describe its preparation.
What is bioremediation?
Solutions for 9: Microbes in Human Welfare
Samacheer Kalvi solutions for Biology (Zoology) [English] Class 12 TN Board chapter 9 - Microbes in Human Welfare
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Concepts covered in Biology (Zoology) [English] Class 12 TN Board chapter 9 Microbes in Human Welfare are Microbes in Household Products, Microbes in Industrial Production, Microbes in Sewage Treatment, Microbes in Sewage Treatment, Bioremediation.
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