Harmful Micro Organism
Harmful Micro Organism
Harmful effects of microorganisms can be divided into the following two categories:
• Causing diseases in human beings, animals, and plants
• Food spoilage
Disease-causing Microorganisms: Microorganisms that cause diseases in human beings, animals, and plants are called pathogens. Let us look at some of the diseases caused by pathogens in human beings, animals, and plants.
In human beings pathogens enter the body of a healthy person through air, water, and food. They can also spread from an infected person to a healthy one. For example, when a person suffering from common cold sneezes, pathogens are released into the air. These pathogens may enter the body of a healthy person while breathing and he/she may also get common cold.
Examples : The disease causing microorganism are called as pathogen. They can be bacteria, virus,protozoa etc. Some of the diseases caused by organisms are given below:
1. Disease: Ring Worm
Mode of transmission: Direct contact with the infected person
Causative pathogen:Three genera( Fungus)
Preventive measures: Good hygiene, not sharing personal items like towels and combs with infected person.
2. Disease: Common cold
Mode of transmission: Air,
Causative pathogen: Rhinovirus (Virus)
Preventive measures: Washing hands regularly; avoiding close contact with people having common cold
3. Disease: Poliomyelitis
Mode of transmission: Air and water
Causative pathogen:Polio virus(Virus)
Preventive measures: Vaccination
Most bacteria can be killed by ____________________. | |||
| Right Option : A | |||
| View Explanation | |||
The microganisms that cause diseases are known as pathogens or germs. Microorganisms also cause diseases in animals and plants other than human beings. Select the incorrect statement from the following: | |||
| Right Option : C | |||
| View Explanation |
The table given shows pathogens and the diseases they cause.
Which of the following information completes the given table ? | |||||||||||
| Right Option : D | |||||||||||
| View Explanation | |||||||||||
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