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Transcript
Cells and Their Parts
Background Information:
Every living thing on Earth is made up of cells.
Cells keep living things organized. Some
organisms, like bacteria, are only as big as a
single cell.
In an organism as complex as a human, there
is no way you we could do everything we do
and be just a single cell. We must have
many different, and many different kinds of
cells.
Background Information:
One of the main functions of cells is to
organize the body. We have brain
cells, stomach cells, bone cells, and
many other types of cells. They all do
special jobs to help our bodies function
the way they are supposed to.
Although the cells in our bodies do
many different jobs, they all contain
similar parts called organelles.
.
Background Information:
In the same way there are different
kinds of cells inside us, different
organisms have different types of
cells. Trees have different cells
than us and so do dogs and
cockroaches. Each of those cells
is different in some way. Every
cell has a special job to do.
Background Information:
All cells have some things in common. If you
were to look inside of a cell, you would be
able to see all of the organelles that are
labeled in this drawing of a cell
Microjourney
to the
plant cell
Parts and
functions
of an
animal cell
Cell Membrane
Structure: A double layer of phospholipids
surrounding both plant and animal cells
Job: To support and protect the cell
Nucleus
Location: Found in both plant and animal
cells
Contents: Has chromosomes and DNA (
genetic info)
Function: Controls all the activities of the
cell, such as growing and dividing
Cytoplasm
Gel-like substance in which all organelles (
cell parts) are found within the cell
Mitochondria
Mitochondria
Location: Found in both plant and animal
cells
Function: To break down food so that the
cell has energy
(ATP)
Ribosomes
Ribosomes
Location: Found either floating in the
cytoplasm or attached to the rough ER
Function: To make proteins for the cell to
survive
Rough Endoplasmic reticulum
Rough Endoplasmic reticulum
Location: Usually found around the nucleus
Function: Takes the proteins the ribosomes makes and
packages them into vesicles
• If the vesicles go to the Golgi Body they will be sued by
the cell
• If the vesicles float to the cell membrane they will be sent
out of the cell
Smooth Endoplasmic reticulum
Smooth Endoplasmic Reticulum
Location: Near nucleus and RER
Function: Makes lipids and stores ions
Lysosomes
Location: Both plant and animal cells
Function: Small sacks in the cell that
contain enzymes that digest old DNA
,protein and lipids into smaller pieces that
can be reused to make new molecules.
Golgi Body
Location: Found in both plant and animal
cells
Function: Modifies and packages cell parts
for transport
Vacuole
Vacuoles
Location: In both plant and animal cells
Function: These bubbles can hold water,
waste and other materials the cell may
need.
Back to the
essential
question:
Cell Animation / Video
• http://www.cellsalive.com/cells/cell_model.
htm (identification game)
• http://www.brainpop.com/science/livingsys
tems/cellstructures/ (quizes)
• http://multimedia.mcb.harvard.edu/
(advanced look)
Animal Cells
Plant Cells