Advanced Study Material for Class 12 Biology: Chapter 08 Microbes In Human Welfare
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This Class 12 Biology concept map for Chapter 10 Microbes in Human Welfare links microbes to household products (curd, bread, cheese), industrial products (beverages, antibiotics, chemicals, enzymes, bioactive molecules), biogas, biocontrol agents, biofertilizers and sewage treatment.
CHAPTER 10: MICROBES IN HUMAN WELFARE (CONCEPT MAP)
MICROBES IN HUMAN WELFARE (central box) branches into the following:
HOUSEHOLD PRODUCTS:
- LAB (Lactic acid bacteria) converts milk to curd, vit B12. Increases nutritional quality and checks diseases
- Baking cakes, pastries etc. - Saccharomyces cerevisiae
- Propionibacterium shermanii - Used in making cheese i.e., Swiss and Roquefort
INDUSTRIES:
- Fermented beverages with Saccharomyces cerevisiae
- Medicines: Antibiotics like Penicillin treats leprosy, Diphtheria, Whooping cough and plague
- Chemicals like citric acid, acetic and lactic acid
- Enzymes like lipases (removes oily stains), Pectinases (clarifies juice), streptokinase (clot buster)
- Bioactive Molecules e.g. Cyclosporin A (Immunosuppressant) and statin (blood cholesterol lowering agent)
BIOGAS: Methanogens (Methanobacterium) grow anaerobically on cellulosic material and produce CO2 and H2 along with methane in Biogas
BIOCONTROL AGENTS:
Examples:
Microbial: Bacillus thuringiensis, Trichoderma, Nucleopolyhedroviruses (Baculoviruses)
Arthropode: Ladybird, Beetle, Dragonfly
BIOFERTILIZER:
Examples: Nostoc, Anabaena, Azospirillum
mycorrhiza
Used in: Reduce Soil Pollution, Organic Farming
SEWAGE TREATMENT: SEWAGE → Primary Treatment → Secondary treatment or biological treatment
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Biology Class 12 Exam Resources: Chapter 08 Microbes In Human Welfare
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FAQs
Our advanced study package for Chapter 08 Microbes In Human Welfare includes detailed concepts, diagrams, Mind Maps, and explanation of complex topics to ensure Class 12 students learn as per syllabus for 2026 exams.
The Mind Maps provided for Chapter 08 Microbes In Human Welfare act as visual anchors which will help faster recall during high-pressure exams.
Yes, teachers use our Class 12 Biology resources for lesson planning as they are in simple language and have lot of solved examples.
Yes, You can download the complete, mobile-friendly PDF of the Biology Chapter 08 Microbes In Human Welfare advanced resources for free.
Yes, our subject matter experts have updated the Chapter 08 Microbes In Human Welfare material to align with the rationalized NCERT textbooks and have removed deleted topics and added new competency-based questions.