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Transcript
All About Cells
Cell Basics
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All living things are made up of cells
There are millions of cells in your body
New cells are constantly growing to replace
old cells
Cells in our body have many different jobs,
but they all contain similar parts called
organelles
Animal and plant cells are similar, but contain
a few different parts
Parts of a Cell
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We are going to focus on a few major parts of a cell
Cell membrane
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Cytoplasm
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Gel-like material inside the cell that contains water and
nutrients
Nucleus
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Surrounds the cell and allows only certain materials to
move into or out of the cell
Contains chromosomes with the DNA and directs cell
activity
Nuclear membrane
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Separates the nucleus from the cytoplasm
Parts of a Cell
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Endoplasmic Reticulum
 Moves materials around in the cell
 Rough ER is covered with ribosomes, smooth ER is not
Ribosomes
 Make protein for the cell
Golgi Bodies
 Used for packaging and secreting of energy
Mitochondria
 Break down food and release energy to the cell
Lysosomes
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Contain chemicals used to digest waste
Vacuoles
 Storage areas for the cell
Unique Parts of a Plant Cell
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Plant cells contain a few organelles that are
not found in animal cells
Cell Wall
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A rigid membrane that surrounds a plant cell and
provides structure
Chloroplasts
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Contain chlorophyll that makes food for the plant
cell through photosynthesis
Abnormal Cells
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Your cells are constantly growing and dividing
Sometimes, something goes wrong with growing
cells and a mutation will occur
Cancer cells are simply normal cells that have
stopped listening to your body
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For example, they might start to divide too fast or fail to die
when they should
Cancer cells can get in the way of healthy cells and prevent
them from doing their job
There are many different types of cancer
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Skin, lung, blood cell cancer, and more
Edible Cells
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Today, you are going to create a model of a
cell…that you can eat!
You can choose to make an animal cell or a
plant cell