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Copy of MULTICELLULAR ORGANISM & CELL SPECIALIZATION

PG 43-46
by

Ms. Fanone's Class

on 16 October 2013

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Transcript of Copy of MULTICELLULAR ORGANISM & CELL SPECIALIZATION

MULTICELLULAR ORGANISMS AND CELL SPECIALIZATION
Laugh of the Day!
Multicelluar organisms
Rely on a variety of types of cells to perform cellular functions
'Specialized Cells'
Perform specific functions
Digestion
Movement
Specialized cells need to work together to get the job done!
BUILDING on UNICELLULAR ORGANISMS
Unicellular organisms are
micro-sized
because cellular activities are performed most
efficiently
at that
size
.
Limitations
Diffusion
Osmosis
process of delivering GAS
process of delivering water
EXAMPLE: an
OXYGEN PARTICLE
can diffuse over a distance of 0.01 mm in a fraction of a second. To diffuse over a distance of 1 mm would take 100 times as long.
Unicellular Organisms...
Multicellular organisms are made up of more
than one cell.
Diffusion
and
Osmosis
still happens but the specialized cells work together to get resources brought to organelles
EXAMPLE:
Hydra (Simple Multicellular Organism
It has
'skin' cells
on the outside and
'digestive cells
on the inside'
Activity
HMK: pg. 46 1-2
TEST: THURSDAY MAY 16, 2013
Specialized Animal and Plant Cells

*Use pages 45-46 of your text to complete the attached chart of specialized cells
Full transcript