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What are the types of protists?

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Quick Answer

The types of protists, which are eukaryotes, that aren't animals, fungi or plants include euglenoza, alevolates, stramenopiles, red algae, slime molds and choanoflagellates. The alevolate group includes ciliates, sporozoans and dinoflagellates. The stramenopile group includes diatoms, golden algae, green algae and water molds.

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Full Answer

Euglenoza, single-celled protists that swim by means of a single flagellum, include Euglena as well as Trypanosoma brucei. Ciliated protists, which move by beating their cilia, include Paramecium, Stentor, Vorticella and Tetrahymena thermophila. Sporozoans include the genus Plasmodium, the bacteria that causes the life-threatening-disease malaria. Dinoflagellates include about 1,000 species of protists and are responsible for the formation of poisonous red tides in marine environments. Diatoms are major producers in aquatic environments and a main base for aquatic food chains. Golden algae includes over 1,000 species of unicellular protists mostly found in freshwater. Brown algae includes rockweeds and kelps mostly found in salt water environments. Some water molds, such as Saprolegnia, are parasites of fish that cause problems for fish hatcheries. Red algae includes approximately 6,000 species of protists that are almost exclusively marine. Slime molds can be either cellular or acellular. Choanoflagellates are singe-celled aquatic protists that have a single flagellum surround by a collar of microvilli.

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Related Questions

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    Why are protists important to humans?

    A:

    Various protist species are important to humans because they are the primary producers at the base of the food pyramid, turning the energy from the sun into a form that can be passed from organism to organism up the food pyramid. Protists also stabilize the ion levels of water, which allows seaweed and fish, both of which are important food sources for humans, to thrive.

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  • Q:

    How do protists reproduce?

    A:

    Protists are a diverse group of organisms, and they reproduce in a number of different ways, including asexual binary fission, multiple fission, fragmentation and several forms of sexual reproduction. Many protists can reproduce either sexually or asexually depending on environmental conditions.

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    How do protists move?

    A:

    Locomotion in the protist kingdom is varied and extremely versatile. Amoebas use cytoplasmic processes called pseudopods, while paramecia have rows of cilia that move in unison like tiny oars. Euglena and dinoflagellates use whip-like proteins called flagella to swim, and some protozoa, such as diatoms and plasmodium (the organism that causes malaria), are non-motile, meaning they do not move independently.

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    How do protists get energy?

    A:

    Some protists produce their own food through photosynthesis, while others obtain energy by consuming particles of organic substances, viruses and bacteria. Some protists have the unique ability to obtain nutrition using both processes; when sunlight is plentiful, they use the autotrophic method of nutrient acquisition (photosynthesis) and feed off organic materials in dark or low light conditions.

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