NCERT Solutions for Class 12 Biology Chapter 10: Free PDF - Embibe
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  • Written By Abhishek_verma
  • Last Modified 17-06-2022
  • Written By Abhishek_verma
  • Last Modified 17-06-2022

NCERT Solutions for Class 12 Biology Chapter 10: Download Free PDF

Class 12 Biology Chapter 10: ‘Microbes in Human Welfare’ is an important chapter for CBSE Class 12. The NCERT Solutions for Class 12 Biology Chapter 10 provides the best study guide for students preparing for their CBSE Class 12 board exam 2022. The NCERT Solutions are designed by the top teachers and subject-matter experts according to the latest term-wise CBSE Syllabus for Class 12 Biology 2021-22.

Students can use the CBSE NCERT Solutions Class 12 Chapter 10 Biology to overcome challenging questions and learn about the most recent exam pattern and marking scheme. The solutions provided here are error-free and follow the latest exam guidelines set by CBSE. Students can use the online solution or download the NCERT Solutions for Class 12 Biology Chapter 10 PDF for free. Scroll down to know more.

Class 12 Biology Chapter 10: Microbes in Human Welfare

Before solving a chapter, it is advised that all students must know the topics included in it. The Microbes In Human Welfare has six major topics:

10.1Microbes in Household Products
10.2Microbes in Industrial Products
10.3Microbes in Sewage Treatment
10.4Microbes in Production of Biogas
10.5Microbes as Biocontrol Agents
10.6Microbes as Biofertilisers

NCERT Solutions for Class 12 Biology Chapter 10 PDF Download

The complete solution for Class 12 Biology Chapter 10 is provided below. Students can download the same in PDF format by clicking on the link provided for easy offline access. You can also download the CBSE Biology Syllabus for Class 12 from Embibe.

NCERT Solutions for Class 12 Biology Chapter 10 - Microbes In Human Welfare - 2
NCERT Solutions for Class 12 Biology Chapter 10 - Microbes In Human Welfare - 3

Question 1: Bacteria cannot be seen with the naked eyes, but these can be seen with the help of a microscope. If you have to carry a sample from your home to your biology laboratory to demonstrate the presence of microbes with the help of a microscope, which sample would you carry and why?
Solution: I can take a sample of curd from home to the biology laboratory to examine under a microscope. A small drop of curd has millions of Lactobacillus bacteria whose role is the conversion of milk into curd by digesting the milk protein casein. They are safe and do not cause any disease upon exposure.

Question 2: Give examples to prove that microbes release gases during metabolism. 
Solution: Microbes release gases during metabolism in several processes. Some of the processes are fermentation of fruit juice and foul smell from the garbage. In fermentation of fruit juice, the sugars are fermented into alcohol with the release of carbon dioxide. Garbage has several organic wastes which are decomposed by bacteria, and the foul smell is due to release of gases such as carbon dioxide, nitrogen, methane and other gases as a result of anaerobic decomposition of the wastes by bacteria. 

Question 3: In which food would you find lactic acid bacteria? Mention some of their useful applications.
Solution: Lactic acid bacteria are found in curd. Some of its applications are: Increasing vitamin B12, thereby improving the quality of curd. It is used to make curd, cheese, butter, buttermilk etc., It is used as a probiotic to promote good health.

Download NCERT Solutions for Class 12 – Biology Chapter 10 PDF

Practice Latest 12th CBSE Book Questions Aligned to the New Syllabus With Quick Hints & Easy Solutions.

Class 12 Biology Chapter 10: Chapter Description

The common belief is that microbes cause diseases. Of course, some microbes are harmful, but, at the same time, there are some that are very helpful. There is a wide variety of microbes. The common categories are protozoa, bacteria, fungi, microscopic animal and plant viruses, viroids, and some prions. You may be amazed to know that we use microbes in our household products. The best example is curd, in which Lactobacillus is found in abundance. Microbes are also used to prepare bread, cheese, and fermented food items such as idli and dosa.

Apart from household applications, microbes are also used in industrial processes, sewage treatment, biogas production, and biofertilizers. Many significant processes and products are prepared using microbes. Antibiotics, enzymes, beverages, the production of insulin, etc. are some examples. In this chapter, you will learn more about such applications – the microbes used and the processes involved in the process.

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FAQs on NCERT Solutions for Class 12 Biology Chapter 10

Below here we have provided some of the most frequently asked questions related to Class 12 Biology Chapter 10:

Q.1: What are the exercises discussed in NCERT Solutions for Class 12 Biology Chapter 10 PDF?
Ans: Exercises discussed in NCERT Class 12 Biology Chapter 10 solutions are:
10.1 Microbes in Household Products
10.2 Microbes in Industrial Products
10.3 Microbes in Sewage Treatment
10.4 Microbes in Production of Biogas
10.5 Microbes as Biocontrol Agents
10.6 Microbes as Biofertilisers

Q.2: How many questions are there in Biology Class 12 Chapter 10 exercises?
Ans:
There are a total of 15 questions, with 9 short type answers and 6 long type answers.

Q.3: What is the meaning of Microbes in Human Welfare?
Ans:
Antibodies produced by microbes help the body in killing the disease-causing germs. However, a few microbes are beneficial to human bodies. Bacteria, fungi, and protozoa are the three groups. These microbes contribute to human well-being. They increase metabolism while also protecting the body from various diseases.

Q.4: What is the full form of SCP?
Ans:
SCP Full form is a Single-Cell Protein that is produced by microorganisms like bacteria, fungi, yeast, etc.

Q.5: How to download NCERT Solutions for Class 12 Biology Chapter 10?
Ans: The solutions for Chapter 10 of Class 12 Biology can be downloaded in PDF by using the link provided in the article.

Q.6: What is the best way to prepare for Class 12 Biology Chapter 10: Microbes in Human Welfare?
Ans: Students can prepare short notes of this chapter for Biology class 12 and with those notes, they will be able to quickly summarize the important topics before the exam.

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We have now provided you with the detailed NCERT Solutions for Class 12 Biology Chapter 10 – Microbes in Human Welfare. Solving the NCERT exercise is the first step toward your preparation for the Class 12 board exams, which will help you to know your present level of preparation and identify your weaknesses. You can then work on them to improve. Regular and proper revision is very important to ace the Biology exam. You can also take CBSE Class 12 Biology Chapter 10 mock test on Embibe. Tests on Embibe are available for free. So, make the best use of these tests and master the subject.

Take CBSE Class 12 Biology Chapter 10 Mock Test Here

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