Microorganism Friend and Foe
Science Solutions from Chapter -1 - Microorganism Friend and Foe
This chapter explores microorganisms, their types, commercial and medicinal benefits to human beings. It also discusses the harmful microorganisms and their effects, food preservation techniques, nitrogen fixation and nitrogen cycle.
Practice Other Topics from Microorganism Friend and Foe
This topic deals with the organisms which can not be seen with the unaided eyes. We will also study the characteristics of microorganisms with the examples.
This topic deals with the microorganisms which are beneficial for us including bacteria used for making curd, decomposition of waste material and yeast is used in the fermentation process. Antibodies, medicines and vaccines are also prepared by microorganisms.
This topic deals with the microorganisms which are harmful to us and causing diseases. It also discusses the carriers of diseases with the diseases caused by mosquitoes and a brief on food poisoning.
In this topic, we will learn the use of chemical substances as preservatives in food to protect them from the attack of microorganisms. It also mentions some common preservatives, which are generally used in the food.
This topic is all about nitrogen fixation. We will come across an example of Rhizobium bacterium, which is involved in the fixation of nitrogen. It also discusses the nitrogen cycle with the help of a well-labeled diagram in detail.
