Introduction to Microorganisms

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Questions and Answers

What are microorganisms that are too small to be seen with the unaided eye called?

  • Nanos
  • Macros
  • Microbes (correct)
  • Minicells

Which major group of microorganisms is responsible for causing diseases?

  • Fungi
  • Protozoa
  • Bacteria (correct)
  • Algae

Where are microorganisms found in nature according to the text?

  • Only inside the bodies of animals
  • In man-made structures only
  • Exclusively in hot springs
  • In air, water, and soil (correct)

What is the main reason why parents tell their children to wash their hands before eating food?

<p>To prevent bacterial infections (C)</p> Signup and view all the answers

What have human beings been using microorganisms for?

<p>Producing food items like curd, bread, and cheese (B)</p> Signup and view all the answers

Which type of microorganism is larger than viruses according to the text?

<p>Bacteria (C)</p> Signup and view all the answers

What role do bacteria play in the preparation of curd?

<p>Produce lactic acid by converting lactose in milk (B)</p> Signup and view all the answers

Which microorganism is responsible for the production of vinegar?

<p>Bacteria (A)</p> Signup and view all the answers

What is the characteristic feature of viruses mentioned in the text?

<p>Made up of genetic material surrounded by a protein coat (D)</p> Signup and view all the answers

How do fungi obtain their nutrition?

<p>Feeding on decaying organic matter or living organisms (D)</p> Signup and view all the answers

Which microorganisms are unicellular animals incapable of preparing their own food?

<p>Protozoa (B)</p> Signup and view all the answers

Why do viruses need to enter a living host cell to multiply?

<p>To replicate their genetic material (D)</p> Signup and view all the answers

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