Questions and Answers
What are the general characteristics of organisms in Kingdom Protista?
Which of the following are the sub-divisions of Kingdom Protista?
What is the nickname for animal-like protists?
Protozoa
What type of protozoa uses cilia to move?
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What are sporozoans known for?
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What is the function of pseudopodia?
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What do zooflagellates use to move?
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What are cilia?
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What is a sporozoite?
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What caused the Irish Potato Famine?
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Which of the following are characteristics of euglenoids?
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What is a common example of a ciliate?
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What is Giardia?
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What is a diatom?
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What type of algae can be toxic and luminescent?
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Study Notes
Kingdom Protista Overview
- Eukaryotic organisms that can be autotrophic or heterotrophic
- Mainly unicellular, predominantly found in aquatic environments
Sub-divisions of Protists
- Divided into three groups:
- Animal-like protists (Protozoa)
- Plant-like protists
- Fungus-like protists
Protozoa
- Commonly referred to as "first animals"
Types of Protozoa
-
Ciliate:
- Moves using cilia
- Example: Paramecium
-
Sporozoan:
- Parasitic and non-motile, lives in/on hosts
- Reproduces via sporozite, akin to fungal spores
- Example: Plasmodium (causes Malaria)
-
Sarcodine:
- Moves using temporary extensions of its cell membrane called pseudopodia
- Example: Amoeba
-
Zooflagellate:
- Moves with whip-like tail known as flagella
Key Structures
-
Cilia:
- Hair-like projections that aid in movement and feeding
-
Pseudopod:
- Temporary bulge used for movement and feeding in Sarcodines
-
Sporozite:
- Form used by Sporozoans for reproduction
-
Flagella:
- Tail structure enabling movement in Zooflagellates
Fungus-like Protists
- Function as decomposers
- Includes slime molds, water molds, and downy mildew
Notable Fungus-like Protists
-
Water mold:
- Infamous for causing the Irish Potato Famine
Plant-like Protists
-
Euglenoids:
- Green, unicellular protists, primarily autotrophic but can switch to heterotrophic
-
Euglena:
- Possesses chloroplasts, contractile vacuole, flagella, and eyespot; capable of both autotrophy and heterotrophy
-
Algae:
- Includes green, red, and brown types, mostly multicellular and aquatic
- Examples: Seaweed, kelp, dinoflagellates, diatoms
Notable Examples
-
Diatom:
- Unicellular algae with glass-like cell walls, harvested for use in insecticides
-
Dinoflagellate:
- Unicellular, can be toxic, and exhibit luminescence
-
Giardia:
- Zooflagellate responsible for hiker’s illness
-
Paramecium:
- Common ciliate, recognized by its shoe-like shape and oral groove
Summary of Key Organisms
-
Plasmodium:
- Parasitic sporozoan causing malaria
-
Amoeba:
- A well-known example of sarcodine protists
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Description
Explore the diverse Kingdom Protista, which includes eukaryotic organisms that can be autotrophic or heterotrophic. This quiz covers classifications such as animal-like, plant-like, and fungus-like protists, as well as various types of protozoa and their key structures. Test your knowledge on their characteristics and examples!
