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Question
Explain the harmful effects of micro-organisms.
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Solution
Microorganisms are not always beneficial can lead to various kinds of damage. This damage can be in terms of health of humans and animals, crop production etc. There are various kinds of microorganisms which are known to cause disease in humans and animals.
| Human disease | Pathogen |
| Tuberculosis | Bacteria |
| Measles | Virus |
| Chicken pox | Virus |
| Polio | Virus |
| Cholera | Bacteria |
| Typhoid | Bacteria |
Similarly there are certain species of microorganisms which cause disease in plants and affect the crop productivity.
| Plant disease | Pathogen |
| Citrus canker | Bacteria |
| Rust of wheat | Fungi |
| Yellow vein mosaic of bhindi (okra) | Virus |
RELATED QUESTIONS
Cholera is caused by _________.
Give reasons.
There is a possibility of food poisoning if we eat stale food.
Citrus canker is transmitted by insects.
What are pathogens?
Microbes that generally enter the body through nose are likely to affect ______.
Pathogenic micro-organisms present in host cells are killed by medicines called
The disease caused by a protozoan and spread by an insect is ______.
Write one important characteristic of virus.
Define the following:
Toxin
Differentiate Exotoxins and Endotoxins.
