Useful Microorganisms
Useful Microorganisms: Overview
In this topic, we will learn about useful microorganisms. We will study the meaning of microbiology. We will discuss the definition of pathogens. We will also understand how these are useful for the digestive system.
Important Questions on Useful Microorganisms
State the importance of yeast in the baking industry?

Is yeast a fungi or bacteria?

_____ is an example of the branch of microbiology.

Genetics is the study of all living organisms that are too small to be visible with the naked eye.

Complete the following table:
NAME OF THE DISEASE | CAUSED BY | HOW GERMS SPREAD | SYMPTOMS |
Malaria | _______ | ____________ | __________ |

Complete the following table:
NAME OF THE DISEASE | CAUSED BY | HOW GERMS SPREAD | SYMPTOMS |
________ | fungus | through contact | red, ring-like rash on skin, itching. |

Complete the following table:
NAME OF THE DISEASE | CAUSED BY | HOW GERMS SPREAD | SYMPTOMS |
Tuberculosis | _______ | through air | ________ |

List the ways in which microbes are useful to us.


Micro-organisms form a part of the environment.

In what ways are micro-organisms useful to us? Find out some common uses.

Microorganisms are divided into three groups: bacteria, viruses, and fungi

Identify the symbiotic bacterium which helps in nitrogen fixation and found in root nodules. (Rhizobium/Lactobacillus/Penicillium/Streptococcus)

Microbes can exist in very high and very low temperatures.

Suppose there were no bacteria around us. Would we be happy and comfortable? Support your answer with reasons.

What are antibiotics? How do they work?


What are antibiotics? Who discovered the first antibiotic?

Explain the role of yeast In industry?

Name two antibiotics?
