Objective Compare the structures and functions of the following single-celled organisms:
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Transcript of Objective Compare the structures and functions of the following single-celled organisms:
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Objective
Compare the structures and functions of the following single-
celled organisms:
EuglenaAmoeba
ParameciumVolvox
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Essential Question: What are the characteristics of the following
single-celled organisms?
EuglenaAmoeba
ParameciumVolvox
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• Environment: fresh and salt water• Movement: flagella (tail-like)• Food:
– Heterotrophic- engulfs full cell and absorb them.– Autotrophic- make their own food using chlorophyll.
• Reproduction: asexual• Additional Organelle:
– Eye spot- senses light and guides Euglena in its direction
Euglena
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Euglena
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• Environment: Fresh and salt water• Movement: Cytoplasmic Streaming
– Changing shape • Food: heterotrophic
– They surround their prey and engulf it with a Pseudopodium- (false foot)
• Reproduction: asexual• Additional Information: Changes shape
Amoeba
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Amoeba Eating Paramecium
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• Environment: Fresh water • Movement: Cilia (hair-like)
– Bend and straighten helping propel organism through water.
• Food: Heterotrophic– Uses cilia to sweep the food into the cell.
• Reproduction: sexual and asexual• Additional Info: Most complex and specialized
Paramecium
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Paramecium
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• Environment: freshwater, unicellular organism called ciliates living in a colony together
• Movement: Each cell in the colony has 2 flagella – Eyespots: sense and guide towards
light• Food:
– Heterotrophic• Eat algae
– Autotrophic • makes its food through photosynthesis
• Reproduction: asexual and sexual – daughter colonies (offspring) mature
and the Volvox bursts open to release them.
Volvox
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Volvox
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Euglena Amoeba Paramecium Volvox
Environment Fresh and salt water Fresh and salt water Fresh water Fresh water
Movement Flagella(tail-like)
Cytoplasmic streaming(changing shape)
Cilia (hair-like) Flagella (tail-like)
Food Autotrophic and Heterotrophic
Heterotrophic Heterotrophic Autotrophic and Heterotrophic
Additional Information
Eye spot(light sensitive)
Pseudopod (False foot)
Most specialized and complex
Lives in colonies, Eyespots
Diagram
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Quiz
Be sure you have these in your notes!!!
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Which single-celled organisms moves by flagellum?
A. EuglenaB. Amoeba
C. ParameciumD. Volvox
A. Euglena
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Which single-celled organism moves by cilia or hairlike
projections?
A. EuglenaB. Amoeba
C. ParameciumD. Volvox
C. Paramecium
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Which single-celled organism uses pseudopods to surround
and engulf their food?
A. EuglenaB. Amoeba
C. ParameciumD. Volvox
B. Amoeba
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Which single-celled organism is a colony of ciliates of which some contain chlorophyll?
A. EuglenaB. Amoeba
C. ParameciumD. Volvox
D. Volvox
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Which single-celled organism has a unique feature of an eye
spot?
A. EuglenaB. Amoeba
C. ParameciumD. Volvox
A. Euglena
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Which single-celled organism moves by cytoplasmic
streaming?
A. EuglenaB. Amoeba
C. ParameciumD. Volvox
B. Amoeba
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Which types of single-celled organisms may contain
chlorophyll?
A. Euglena and AmoebaB. Amoeba and ParameciumC. Paramecium and Volvox
D. Euglena and Volvox
D. Euglena and Volvox
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Which organism appears in the photos?
• paramecium
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Look at the picture. Be able to answer the questions on the
following slide!
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What organelle engulfs food?A. cytoplasm
B. pseudopodsC. vacuolesD. nucleus
What organelle digests the food?A. cytoplasmB. pseudopodsC. food vacuole
D. nucleus
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B. pseudopods
C. food vacuoles
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Name the organelles located at A. and B.
A.
B.
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A. Is the nucleus
B. Is the cytoplasm