2What is a unicellular organism? Any life form that consists of a single cell.They can move, digest food, and reproduce.
3Euglena Environment: Ponds or puddles with rich organic matter. Movement: By flagellaImportant Structures:Cell MembraneNucleus: controls cell activities and contains DNAFlagellum: helps to moveChloroplast: helps with photosynthesisContractile Vacuole: removes excess waterCytoplasmFood: They make their own food or absorb food from their environment.
4Euglena 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).
6Amoeba 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 reactionsNucleus: controls the cellCell Membrane: allows substances to enter and exit the cellFood Vacuole: digests foodContractile Vacuole: gets rid of excess waterPseudopodium: what allows it to move over mud (false foot)Capturing Prey: They surround their prey and engulf it.
7Amoeba Some are considered parasites. They reproduce asexually by splitting into two parts (fission).They eat: algae, bacteria, plant cells, and other unicellular organisms.
9Volvox Environment: ponds, ditches, shallow puddles Movement: They beat flagella which allows it to swim.Important Structures:Daughter coloniesFlagella: helps to moveChloroplast: contains chlorophyllFood: makes its own food by photosynthesis.
10VolvoxDaughter colonies mature and the Volvox bursts open to release them.
12Paramecium Environment: Fresh water or stagnant water Movement: Cilia bend and straighten helping propel the paramecium through waterImportant Structures:Contractile Vacuoles (2): removes excess waterCytoplasm: water absorptionCilia: hair-like projections that propel it through waterNucleus: controls cell activitiesFood: uses cilia to sweep the food into the cell.
13ParameciumThey 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.