Transcript Single Celled Organisms

Single Celled
Organisms
Characteristics of Living
Things
Living things:
 …are composed of cells
 …have different levels of organization
 …use energy
 …respond to their environment
 …grow
 …reproduce
 …adapt to their environment
Two Basic Types of Cells
Prokaryotes
Eukaryotes
No nucleus
Nucleus
DNA in cytoplasm
DNA in nucleus
Ex: All Bacteria
Ex: Protists, Fungi,
Plants and Animals
Single Celled and Multi-Cellular
Organisms are Eukaryotes
 Single Celled (aka
protists):
–Organisms have
everything they need to
be self-sufficient
 Multi-Cellular:
–Specialization increases
until some cells do only
certain things (ex. blood
cells)
Protists

Protists are eukaryotes and cannot be
classified as plants, animals or fungi, but act
similar to each.
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1.
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The four main types that we will explore are:
Amoeba
Paramecium
Euglena
Volvox
How do Protists Eat/Get
Rid of Waste?
Exocytosis