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Types of Organisms. Unicellular Organisms vs. Multicellular Organisms. Background information. What does “micro” mean? What is a microscope? What is an organism? What does “multi” mean? What is a cell?. Micro. Something very small. - PowerPoint PPT Presentation
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Types of OrganismsUnicellular Organisms
vs.Multicellular Organisms
Background informationWhat does “micro” mean?What is a microscope?What is an organism?What does “multi” mean?What is a cell?
MicroSomething very small. When referring to an organism, it can NOT
be seen without a microscope.
MicroscopeWhat is a microscope?is an instrument used to see objects that are too small for the naked eye.
What is an instrument?In science, it refers to laboratory equipment or tools in a laboratory used byScientists. This includes instruments such as a microscope.
What is an Organism?Definition:
Organism – anything that can live on its own
CellsWhat is a cell?
Cells are the basic building blocks of all living things.
For example, the human body is composed of trillions of cells.
They provide structure for the body, take in nutrients from food, convert those nutrients into energy, and carry out specialized functions.
Unicellular Organisms
Unicellular OrganismsDefinition:
Unicellular organism – an organism made of only one cell
Uni – means “one”.Information:
These organism are very small and need to be seen with a microscope.
These organisms CANNOT be seen with the naked eye.
Unicellular:Common NamesMicroscopic Organisms
Microorganisms
Really small living things
Examples of Unicellular Organisms
Amoeba
Bacteria
Protozoa
Unicellular algae
Unicellular fungi
Unicellular yeasts
Paramecium (picture)
Images of Unicellular Organisms
More Images of Unicellular Organisms
Multicellular Organisms
Multicellular OrganismsDefinition:
Multicellular organism – an organism made of two or more cells
Information:These organisms are able to be seen with
the naked eye.These organisms need all parts of itself to
survive.
Common NamesMany – celled organismsEukaryotic organismsMammalsBirdsReptileFishMany others…If you can SEE an organism, it is multicellular
Examples of Multicellular OrganismsHumans
Cats
Dogs
Insects
Birds
Flowers
Mold
Trees
Images of Multicellular Organisms
More Images of Multicellular Organisms
Compare/ContrastUnicellular
Organisms – (one celled) organisms are good models for membrane transport, because they need to perform MANY functions with one cell, rather than many types of cells.
Multicellular organisms- organisms that consist of more than one cell, in contrast to single-celled organisms. To form a multicellular organism, these cells need to identify and attach to the other cells.
ReviewWhat type of
organism is a hamster?
a. Multicellularb. Unicellular
What is a unicellular organism?
a. An organism with many cells.b. An organism that requires a microscope to view it.