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 Any life form that consists of a single cell.  They can move, digest food, and reproduce.

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Presentation on theme: " Any life form that consists of a single cell.  They can move, digest food, and reproduce."— Presentation transcript:

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2  Any life form that consists of a single cell.  They can move, digest food, and reproduce.

3  Environment: Ponds or puddles with rich organic matter.  Movement: By flagella  Important Structures: ◦ Cell Membrane ◦ Nucleus: controls cell activities and contains DNA ◦ Flagellum: helps to move ◦ Chloroplast: helps with photosynthesis ◦ Contractile Vacuole: removes excess water ◦ Cytoplasm  Food: They make their own food or absorb food from their environment.

4  Chloroplasts help to make their own food by photosynthesis.  Can absorb food from their environment.  This means they are considered heterotrophic (consume food) and autotrophic (make food).

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6  Environment: Mud at the bottom of freshwater ponds.  Movement: They change shapes which allows them to move (called shape shifters).  Important Structures: ◦ Cytoplasm: carries out chemical reactions ◦ Nucleus: controls the cell ◦ Cell Membrane: allows substances to enter and exit the cell ◦ Food Vacuole: digests food ◦ Contractile Vacuole: gets rid of excess water ◦ Pseudopodium: what allows it to move over mud (false foot)  Capturing Prey: They surround their prey and engulf it.

7  Some are considered parasites.  They reproduce asexually by splitting into two parts (fission).  They eat: algae, bacteria, plant cells, and other unicellular organisms.

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9  Environment: ponds, ditches, shallow puddles  Movement: They beat flagella which allows it to swim.  Important Structures: ◦ Daughter colonies ◦ Flagella: helps to move ◦ Chloroplast: contains chlorophyll  Food: makes its own food by photosynthesis.

10  Daughter colonies mature and the Volvox bursts open to release them.

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12  Environment: Fresh water or stagnant water  Movement: Cilia bend and straighten helping propel the paramecium through water  Important Structures: ◦ Contractile Vacuoles (2): removes excess water ◦ Cytoplasm: water absorption ◦ Cilia: hair-like projections that propel it through water ◦ Nucleus: controls cell activities  Food: uses cilia to sweep the food into the cell.

13  They fire trichocysts at predators to defend themselves. Trichocysts sting the predator.  They can move backward when they bump into something.  They feed on bacteria, algae, and yeast through the cilia.  They reproduce by splitting in two (fission).  Algae live in the cytoplasm of a paramecium.

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15  Paramecium Pics: ◦ infovisual.info ◦ goscienceseven.com ◦ microscope-microscope.org  Amoeba Pics: ◦ enchantedlearning.com ◦ microscopy-uk.org.uk ◦ leavingbio.net  Volvox Pics: ◦ morning-earth.org ◦ rkm.com.au ◦ volvoxaureus.com  Euglena Pics: ◦ infovisual.info ◦ fcps.edu ◦ schursastrophotography.com


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