Q:

What are examples of protists?

A:

Quick Answer

Protists may be plants, animals or fungi: amoeba, protozoa and giardia are all examples. Despite falling into the same class of protists, the organisms that comprise this class vary significantly in appearance and biological composition. They live in different areas around the world, including Arctic environments, tropical locales, rain forests and can be found on land and in water.

Continue Reading

Full Answer

Animal-like protists are among the most common. These organisms consist of single cells and share commonalities of heterotrophic feeding mechanisms and the ability to move. Protozoa are consumers and feed by taking in other organisms, which are digested using special enzymes. Some protozoa are predators and may prey upon other single-celled organisms, such as bacteria, which keeps their populations in check. Protozoa may be benign or malignant; the human disease of malaria is generated by a virulent species of protozoa. These organisms are classified based on their patterns of movement. Of all protists, only sporozoa lack the ability to move at all. Algae are other types of protists and resemble plants in shape and color. They are considered plant-like because they contain chloroplasts and produce food via photosynthesis. Algae protists primarily take the form of diatoms and seaweed. Lastly, fungal protists include various types of mold, and they reproduce with spores.

Learn more about Cells
Sources:

Related Questions

  • Q:

    What are the three different types of protists?

    A:

    The three different types of protists are protozoa, algae and fungus-like protists. These types are unofficially categorized by how they obtain nutrition. All protists are eukaryotes.

    Full Answer >
    Filed Under:
  • Q:

    What are the differences between protists and bacteria?

    A:

    One main difference between protists and bacteria is that protists are eukaryotic organisms, while bacteria are prokaryotes. Another difference is that protists belong to the kingdom Protista, while bacteria are members of the Monera kingdom. Bacteria are uni-cellular organisms that do not contain organelles like a nucleus or chloroplasts.

    Full Answer >
    Filed Under:
  • Q:

    Do protists have a cell wall?

    A:

    Some protists do have cell walls, but others do not. Protists with cell walls include photosynthetic diatoms, red algae and green algae, along with the fungi-like Oomycota. Most other protists, such as brown algae and animal-like protists, do not.

    Full Answer >
    Filed Under:
  • Q:

    Are there any single-celled animals?

    A:

    Although members of the kingdom Animalia are almost exclusively multicellular, there are several unicellular organisms classified as animals, including species of bacteria, protozoa, fungi, algae and archaea. Bacteria are unicellular organisms of microscopic size that contain no nucleus. They are hardy life forms that can survive in extreme environmental conditions.

    Full Answer >
    Filed Under:

Explore