What are the disadvantages of protozoa to human life?
they cause many diseases?
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Answered by
13
Microorganisms are small organisms invisible to the naked eye because of their extremely small size. They are grouped into various groups like Bacteria, fungi, algae, protozoa and viruses.
Many of these organisms are useful to human and nature while some are harmful and even cause diseases.
Type
Useful microorganisms (one example)
Harmful microorganisms(One example)
Bacteria
Lactobacillus (curd bacteria)
Salmonella typhi (causes typhoid)
Fungi
Penicillium notatum (to make antibiotics)
Trichophyton rubrum (Athlete's foot)
Algae
Anabaena (biological nitrogen fixation)
Blue-green algae and red tides (produce toxins)
Protozoa
Paramecium (kills harmful bacteria)
Plasmodium (malaria fever)
Virus
polio, chicken pox (to make vaccines)
HIV (causes AIDS)
Useful effects of microorganisms
Bacteria: In industries, they are needed to make curd, cheese, vinegar, lactic acid, alcohol and even in ripening of tea leaves, etc.
Fungi: Some useful fungi are yeast, used to make dough in bakery and alcohol etc. Some fungi are useful for preparing antibiotics. Some mushrooms which are useful in making vitamins and organic acids.
Algae: Some useful algae are chlorella (produce protein and vitamin), red algae (agar) and brown algae (Iodine and potassium).
Protozoa: Some help in the final degradation of waste and sewage while some are symbiotic in nature.
Virus: They are used for scientific research such as in biotechnology, genetic engineering, gene therapy and for making antibiotics etc.
Harmful effects of microorganisms:
Bacteria: Causes various diseases such as typhoid, diarrhea, and cholera.
Fungi: Causes a large number of diseases in plants and in animals such as rust diseases in plants, fruit rot in apple, red rot in sugar cane and ring worm disease in human beings.
Algae: Algal boom in water (rapid growth of algae) causes poisonous effect after they die, which in turn results in the death of aquatic organisms.
Protozoa: Causes Amoebic dysentery, pyorrhoea and sleeping sickness etc.
Virus: Cause small fox, common cold, influenza, herpes, hepatitis, polio and rabies.
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Many of these organisms are useful to human and nature while some are harmful and even cause diseases.
Type
Useful microorganisms (one example)
Harmful microorganisms(One example)
Bacteria
Lactobacillus (curd bacteria)
Salmonella typhi (causes typhoid)
Fungi
Penicillium notatum (to make antibiotics)
Trichophyton rubrum (Athlete's foot)
Algae
Anabaena (biological nitrogen fixation)
Blue-green algae and red tides (produce toxins)
Protozoa
Paramecium (kills harmful bacteria)
Plasmodium (malaria fever)
Virus
polio, chicken pox (to make vaccines)
HIV (causes AIDS)
Useful effects of microorganisms
Bacteria: In industries, they are needed to make curd, cheese, vinegar, lactic acid, alcohol and even in ripening of tea leaves, etc.
Fungi: Some useful fungi are yeast, used to make dough in bakery and alcohol etc. Some fungi are useful for preparing antibiotics. Some mushrooms which are useful in making vitamins and organic acids.
Algae: Some useful algae are chlorella (produce protein and vitamin), red algae (agar) and brown algae (Iodine and potassium).
Protozoa: Some help in the final degradation of waste and sewage while some are symbiotic in nature.
Virus: They are used for scientific research such as in biotechnology, genetic engineering, gene therapy and for making antibiotics etc.
Harmful effects of microorganisms:
Bacteria: Causes various diseases such as typhoid, diarrhea, and cholera.
Fungi: Causes a large number of diseases in plants and in animals such as rust diseases in plants, fruit rot in apple, red rot in sugar cane and ring worm disease in human beings.
Algae: Algal boom in water (rapid growth of algae) causes poisonous effect after they die, which in turn results in the death of aquatic organisms.
Protozoa: Causes Amoebic dysentery, pyorrhoea and sleeping sickness etc.
Virus: Cause small fox, common cold, influenza, herpes, hepatitis, polio and rabies.
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Answered by
1
Protozoa cause many harmful diseases that may even kill human life. Some of the diseases caused by Protozoa are Malaria, Sleeping sicknessb and Amoebic dysentery.
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