Microbiology Basics Quiz
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Questions and Answers

What is the defining characteristic of fungi?

Devoid of chlorophyll

How are viruses different from other microbial groups?

Non-cellular parasites or pathogens

Where do microorganisms occur in nature and why are they important?

Everywhere in nature; involved in beneficial and detrimental activities

Study Notes

Microbiology

  • Microbiology is the study of living organisms of microscopic size, including bacteria, fungi, algae, protozoa, and viruses.

Characteristics of Microorganisms

  • Most microorganisms are unicellular, meaning all life processes are performed by a single cell.
  • All living cells contain protoplasm, a colloidal organic complex consisting of proteins, lipids, and nucleic acids.

Major Microbial Groups

Procaryotic Protists

  • Bacteria: unicellular, procaryotic, and multiply by binary fission.
  • Cyanobacteria (Blue Green Algae): also procaryotic protists.

Practical Significance of Procaryotic Protists

  • Cause diseases
  • Involved in natural cycling and soil fertility
  • Spoil food
  • Used in food production, etc.

Eucaryotic Protists

Algae

  • Relatively simple organisms
  • May be unicellular or aggregations of similar cells with little or no differentiation
  • Some algae, like large brown algae, have complex structures with specialized cell types for particular functions.

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Description

Test your knowledge of microbiology basics, including the study of microscopic living organisms, their form, structure, reproduction, and effects on human beings and other organisms.

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