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Questions and Answers
What are microorganisms?
Microorganisms are tiny organisms that cannot be seen with the unaided eye.
All microorganisms can be seen without a microscope.
False
Which of the following is NOT a type of microorganism?
Microorganisms are used in the preparation of _____ and _____ substances.
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What is a common use of bacteria in agriculture?
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Viruses can reproduce independently outside a host organism.
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What types of diseases are caused by protozoa?
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What happens when organic wastes are treated by bacteria?
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Study Notes
Overview of Microorganisms
- Microorganisms are tiny organisms that cannot be seen with the naked eye.
- Common examples include bacteria, fungi, protozoa, and algae.
- Microorganisms can also be observed with the aid of a magnifying glass or microscope.
Classification of Microorganisms
- Microorganisms are classified into four major groups:
- Bacteria
- Fungi
- Protozoa
- Algae
Viruses
- Viruses, though microscopic, differ significantly from other microorganisms.
- They reproduce only within the cells of a host organism, such as plants, animals, and bacteria.
- Common viral diseases include:
- Cold
- Influenza (flu)
- Polio
- Chickenpox
Diseases Caused by Microorganisms
- Protozoa are known to cause diseases like:
- Dysentery
- Malaria
- Bacterial infections include:
- Typhoid
- Tuberculosis (TB)
Beneficial Microorganisms
- Microorganisms play essential roles in various applications:
- Food Production: Used in the making of curd, bread, and cake.
- Alcohol Production: Utilized for fermenting alcohol over centuries.
- Environmental Cleanup: Bacteria decompose organic waste into harmless substances.
- Agriculture: Some bacteria enhance soil fertility and promote plant growth.
- Medicine: Certain bacteria are essential in creating antibiotics and other medicines.
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Description
Test your knowledge of microorganisms and their dual roles as friends and foes in the ecosystem. This quiz will cover various types of microorganisms, their characteristics, and their impact on plants, animals, and the environment. Explore the unseen world that exists all around us and learn about the vital functions of microbes.
