NCERT Exemplar Class 12 Biology Chapter 10 Solutions: Microbes in Human Welfare
NCERT Exemplar Class 12 Biology Solutions Chapter 10 Microbes in Human Welfare give you an excellent command of this topic for the upcoming board exams or other competitive exams such as NEET. This chapter NCERT Class 12 Biology Exemplar provides you with in-depth knowledge of all the problems where microbes play an essential part. They are indeed present everywhere in our day to day life and play some crucial roles without being noticed by us.
There are several topics discussed like Microbes in Household Products, Microbes in Industrial Products, Microbes in Sewage Treatment, Microbes in Production of Biogas etc. They are divided across a total of 58 questions in this chapter, which are further divided into various subsets of exemplary high-level problems. The different sections are Multiple-choice questions (MCQ), Very short answer (VSA), Short answer(SA), and Long answer(LA).
These solutions are prepared by experts which are in accordance with the latest syllabus approved by CBSE board. NCERT Exemplar solutions class 12 helps to clear the most stringent tests by giving the best arrangements as various sorts of questions and profound explanations prepared by the experts.
Important Topics NCERT Exemplar Class 12 Biology Solutions Chapter 10 – Microbes in Human Welfare
Microbes In Household Products:
Lactobacillus (LAB) Lactic acid Bacteria is used to form curd from milk. Other common uses of microbes are for fermentation of dough, which is used for making bread, idli, and dosa. Baker‘s yeast (Saccharomyces cerevisiae) is used for making bread.
Microbes In Industrial Products:
Many of the bacteria are used in the production of many beverages like wine, beer, whiskey, brandy, or rum. Saccharomyces cerevisiae is commonly used for fermentation. Microbes, too, do the creation of many antibiotics like Penicillin and other chemical substances. These microbes also make some Chemicals, Enzymes and other Bioactive Molecules for various human uses.
Microbes In Sewage Treatment:
Sewage is treated in sewage treatment plants, which are generally carried out by heterotrophic bacteria present in the wastewater. The treatment is usually carried out in two stages – Primary treatment and Secondary treatment. These procedures lessen the BOD(biochemical oxygen request) of the profluent altogether. The sewage water is treated until the decrease of BOD as the BOD checks the pace of take-up of oxygen by microorganisms in a water test. Subsequently, BOD is a proportion of the organic matter present in water.
Microbes In Biogas Production:
The bacterium utilized is Methanobacterium, usually found in anaerobic slime that encourages sewage treatment. They are additionally found in the rumen of ruminants. The excreta of steers, known as the gobar, are microbes rich. Subsequently, it very well may be utilized for the production of biogas ordinarily alluded to as gobar gas.
Microbes As Biocontrol Agents:
The usage of organic strategies to control plant pests and illnesses is known as biocontrol, which has been accomplished through synthetic compounds – pesticides and insecticides. The utilization of biocontrol measures will lessen the reliance on toxic synthetic compounds and pesticides to a more prominent degree. Microbial biocontrol agents such as Bacillus thuringiensis, which is accessible as dry spores are splashed on vulnerable plants. A large portion of the baculoviruses utilized as natural control operators is in the variety of Nucleopolyhedrovirus.
Exercise Discussion of NCERT Exemplar Class 12 Biology Solutions Chapter 10 – Microbes in Human Welfare
- The first section of NCERT Exemplar Class 12 Biology Solutions Chapter 10 has 18 questions, which are MCQs that are based on remembering the name of various microbes. There is also some match the following questions in this.
- The second section has 20 questions, which are very short answer type questions that will help you to understand different definitions and functions of various microbes.
- The third section has 14 questions, which are short answer types that will ask you about the nature of various microbes and their crucial functions.
- The final section has 6 questions, which are long answer type questions that are based on gobar gas plants and various steps taken by the Indian government. Some are also linked to the treatment plant and biological control of pests and disease.
Why Use NCERT Exemplar Class 12 Biology Solutions Chapter 10 – Microbes in Human Welfare by Instasolv?
NCERT Exemplar Class 12 Biology Solutions Chapter 10 – Microbes in Human Welfare by Instasolv experts consolidates all the critical subjects with point by point explanation that intends to help students with understanding the thoughts better. Encountering the courses of action given on this page will help you in realizing how to approach and deal with the problems of any type and of any level difficulty.