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Questions and Answers
What does the term 'Protista' mean in Greek?
Where do most Protista live?
What is the primary feature of all Protista?
What is the function of flagella or cilia in some Protista?
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What do scientists speculate about Protista?
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What is true about the cells of Protista?
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What is characteristic of Protista in terms of nutrition?
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What is observed in the members of this class?
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What is giant kelp?
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What do scientists believe about the ancestral relationship between Protista and other kingdoms?
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Study Notes
Protista
- Protista are simple eukaryotic organisms that are neither plants, animals, nor fungi.
- They are unicellular in nature but can also be found as a colony of cells.
- Most Protista live in water, damp terrestrial environments, or as parasites.
Characteristics of Kingdom Protista
- The primary feature of all Protista is that they are eukaryotic organisms, meaning they have a membrane-enclosed nucleus.
- They are usually aquatic, present in the soil, or in areas with moisture.
- Most Protista species are unicellular organisms, but there are a few multicellular Protista, such as kelp.
- The cells of these species have a nucleus and membrane-bound organelles.
- They can be autotrophic or heterotrophic in nature.
- Symbiosis is observed in the members of this class, such as the relationship between kelp and otters.
- Parasitism is also observed in Protista, such as the species Trypanosoma protozoa that can cause sleeping sickness in humans.
- Protista exhibit locomotion through cilia and flagella, and some have pseudopodia that help them to move.
- Protista reproduce by asexual means, and the sexual method of reproduction is extremely rare and occurs only during times of stress.
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Description
Learn about Protista, simple eukaryotic organisms that are neither plants nor animals or fungi. Discover their characteristics, habitats, and unique features.
