| KINGDOM PROTISTA |
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made up of a complex eukaryotic cell, |
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some members make their own food, |
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and some take food in from an outside source. |
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Much more complicated than monerans |
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Cell is somewhat like the whole body of a plant or animal "stuffed" into a single cell |
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Has many specialized parts that carry out specific functions of living |
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Example: We have legs for walking that are made of many cells. Protists use special parts of its SINGLE cell as "legs" |
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Cells are so complex that they are often thousands of times larger the one of our own cells in our body. |
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Covered by two shells that fit together like a pill box |
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Float on the surfaces of fresh and salt water |
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Food is stored within their cells as small drops of "oil" |
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Much of our petroleum may be the stored food of diatoms that lived millions of years ago |
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Have two whip-like tails for movement |
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Make their own food |
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Live on the surface of water |
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Overpopulation can leave water smelling and tasting bad |
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Biologists used to think they where plants or animals |
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They are protists because of their specialized structures within each cell |
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Have green pigments to make their own food through photosynthesis |
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Have a kind of an "eye" |
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Swim to move about |
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Appear to have a mouthlike structure |
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Pursues, catches and swallows its food |
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Grouped into classes according to the way they move about (only 4 classes are shown below) |
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1.Sarcodines | |
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Resemble small masses of cloudy gelatin | |
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Move by pushing out parts of their cell membranes | |
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Fluids in these parts of the cell flow in the direction they are moving | |
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2.Ciliates | |
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Are covered by short hairlike structures called cilia | |
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The cilia contract in "waves" to push the organism along | |
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Cilia movement may "sweep" food into the mouthlike structures | |
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3.Flagellates | |
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Move by using one or two whiplike tales called flagella | |
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Most live independently | |
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Some live inside other organisms | |
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Those that live inside other organisms may cause diseases such as African sleeping sickness | |
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4.Sporozoans | |
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Live inside other organisms | |
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Most have no structures to move about | |
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Depend on their "host" for transportation | |
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Example: Malaria sporozoans are carried about in the human body by the bloodstream | |
