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The Invisible Living World: Beyond Our Naked Eye Video Lecture | Science Curiosity Class 8 - New NCERT

FAQs on The Invisible Living World: Beyond Our Naked Eye Video Lecture - Science Curiosity Class 8 - New NCERT

1. What is the Invisible Living World and why is it important to study it?

Ans.The Invisible Living World refers to the myriad of microorganisms, such as bacteria, viruses, fungi, and protozoa, that are not visible to the naked eye. Studying this world is crucial because these organisms play significant roles in ecosystems, human health, and disease. They are involved in processes like decomposition, nutrient cycling, and can influence the health of larger organisms, including humans.

2. How do microorganisms affect the environment?

Ans.Microorganisms impact the environment in various ways. They help decompose organic matter, returning nutrients to the soil, which supports plant growth. Some microorganisms are involved in nitrogen fixation, converting atmospheric nitrogen into forms that plants can use. Additionally, they can also contribute to pollution degradation, helping to clean up contaminated environments.

3. What are some common types of microorganisms found in our surroundings?

Ans.Common types of microorganisms include bacteria, viruses, fungi, and protozoa. Bacteria are single-celled organisms that can be beneficial or harmful. Viruses are smaller and require a host to replicate. Fungi, which include molds and yeasts, play essential roles in decomposition. Protozoa are single-celled organisms that can be found in water and soil, often serving as indicators of environmental health.

4. How do scientists study microorganisms that are invisible to the naked eye?

Ans.Scientists use various techniques to study microorganisms, including microscopy, which allows them to visualize these organisms. Different types of microscopes, such as light microscopes and electron microscopes, can magnify these tiny life forms. Additionally, molecular techniques like DNA sequencing enable researchers to identify and classify microorganisms based on their genetic material.

5. What are some examples of diseases caused by microorganisms?

Ans.Diseases caused by microorganisms include bacterial infections like tuberculosis and strep throat, viral infections such as the flu and COVID-19, fungal infections like athlete's foot, and protozoan infections such as malaria. Understanding these diseases is vital for public health and for developing effective treatments and preventive measures.

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Oct 01, 2025 Last updated

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	Science Curiosity Class 8 - New NCERT 59 videos\|235 docs\|13 tests

Science Curiosity Class 8 - New NCERT

59 videos|235 docs|13 tests

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