Biology · Class 12 · Chapter 8
Microbes in Human Welfare
11 lessons91 min4 simulations10 practice questions
This chapter turns from the microbes that make us ill to the ones that work for us. It follows them from the kitchen (curd, dough, cheese) into industry (beverages, antibiotics, acids, enzymes and drugs), through sewage treatment and biogas plants, and out into the field as biocontrol agents and biofertilisers.
Also called: microbes · biofertilisers · sewage treatment · antibiotics
Lessons
11 lessons · 91 min
01Microbes all aroundNCERT §8 (chapter introduction)6 min02Curd, dough and cheeseNCERT §8.17 min03Fermented beveragesNCERT §8.2, §8.2.110 min1 sim04AntibioticsNCERT §8.2.26 min05Chemicals, enzymes and bioactive moleculesNCERT §8.2.36 min06Primary sewage treatmentNCERT §8.36 min07Secondary treatment and BODNCERT §8.314 min2 sims08BiogasNCERT §8.47 min09Biocontrol agentsNCERT §8.510 min1 sim10BiofertilisersNCERT §8.66 min11Chapter reviewMust-know facts, traps and formulas13 min
Simulations
4 in this chapter