Transcript Multicellular vs. Unicellular powerpoint

Montgomery County Public Schools, Maryland
Curriculum 2.0 – Grade 5 2012
1
Multicellular organisms consist of specialized cells that perform
different tasks within the organism’s body. The entire organism
requires all the different types of cells to be present, and the
individual cells cannot survive without being a part of the organism.
Montgomery County Public Schools, Maryland
Curriculum 2.0 – Grade 5 2012
2
A unicellular organism is a complete living entity consisting of just
one cell. It’s survival is not dependent upon other cells. Unicellular
organisms may divide into two parts, with each part being a new
unicellular organism that is a copy of the original cell.
Paramecium caudatus
Amoeba
Diatoms
Trypanosoma
brucei
Euglena
Montgomery County Public Schools, Maryland
Curriculum 2.0 – Grade 5 2012
3
A colonial organism is a collection of unicellular organisms
living together. The difference between a multicellular organism
and a colonial organism is that individual one-celled organisms
from a colony can, if separated, survive on their own, while cells
from a multicellular life-form (e.g., cells from a brain) cannot.
Volvox
Algae
Montgomery County Public Schools, Maryland
Curriculum 2.0 – Grade 5 2012
4
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View the video, “One-Celled Organisms?”
(3:21)
Review the video, “Organisms Found in Pond
Water” (2:31)
View the video, “Unicellular Organisms” (1:32)
Read the textbook, “What are unicellular
organisms like?” (textbook, p.26-27)
Montgomery County Public
Schools, Maryland Curriculum 2.0
– Grade 5 2012
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