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Science Project
BY:HAYDEN
NEAL
BY:HAYDEN NEAL
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Slide 1
Our Topic: CELLS
• The cell is the functional basic unit of life. It was
discovered by Robert Hooke and is the functional unit of
all known living organisms. It is the smallest unit of life
that is classified as a living thing, and is often called the
building block of life. Some organisms, such as most
bacteria, are unicellular (consist of a single cell). Other
organisms, such as humans, are multicelluar . Humans
have about 100 trillion or 1014 cells; a typical cell size is
10 µm and a typical cell mass is 1 nanogram. The
longest human cells are about 135 µm in the anterior
horn in the spinal cord while granule cells in the
cerebellum, the smallest, can be some 4 µm and the
longest cell can reach from the toe to the lower brain
stem (Pseudounipolar cells).The largest known cells are
unfertilised ostrich egg cells, which weigh 3.3 pounds
2: types of CELLS
Animal cell
Plant cell
Plant cells
• Plant cells are very
different from animal
cells. An animal cells
only has a cell
membrane to protect
the cell, however a
Plant cell has both a
cell membrane, and a
cell wall. The cell wall
is like a body guard it
protects the cell from
bad chemicals such
as viruses
Animal CELLS
•
Animal cells
are round
shape not
quiet a circle.
The animal
cell does not
make its own
food, the plant
cell does
make its own
food. Both
plant CELLS,
and animal
CELLS are
BOTH LIVING
CELLS!!!
Our Main Focus:
• The
Animal
CELL
Next Slide
Gathering Information:
• 1.Animal cells are rounded, but not
completely circled.
• 2.Research For A Good Project.
• 3.Gather Materials.
• 4.Do An Experiment.
• 5.Record Your Progress
• 6.Wright A Conclusion
Next Slide
And Finally The Conclusion:
• So at the end we come out with a lot more
information, an awesome 3-D model of an
animal cell,and we are more aware of the
parts and functionalities of them.
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Nucleus
• The nucleus directs what happens in a
cell. It holds a tiny bit of matter called
DNA.DNA is what makes a living thing
have certain traits, or qualities.
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Lysosomes
• Lysosomes are small, round organelles
that help the cell break down food, or
nutrients, and old cell parts. lysosomes are
found in most animal cells,but they are not
often found in plant cells.
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Smooth Endoplasmic Reticulum
• The endoplasmic reticulum (ER) is a group
membranes and tubes that twist and turn
through the cell, forming tunnels. Material
moves through the cell in these tunnels.
Most cells have two kinds of (ER), called
rough and smooth .Smooth (ER) breaks
down deadly matter and controls the
amounts of some chemicals. It is not
covered by ribosomes.
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Rough Endoplasmic Reticulum
• Cells that produce lots of proteins have
rough ER that is covered with ribosomes.
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Cytoplasm
• The cytoplasm is found between the
nucleus and the cell membrane. All of the
other organelles float in the thick liquid of
the cytoplasm
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Ribosomes
• Tiny ribosomes can be found all over the
cell. Ribosomes make proteins. Protiens
make up parts of cells and help chemical
reactions occur.
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Golgi Apparatus
• The golgi apparatus takes in protiens and
changes them so they are ready to leave
the cell
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Vacuoles
• Vacuoles are sacs filled with liquid. They
hold water,food,and waste. Animal cells
may have small vacuoles. Plant cells often
have one large vacuole.
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Mitochondria
• Mitochondria are large organells that are
shaped like peanuts. They are known as
the “power plants” of the cell. Inside the
mitochondria,sugars breaks apart as they
mix with oxygen. This action makes
carbon dioxide,water,and a lot of energy.
Plant and animal cells that need a lot of
energy have a lot of mitochondria.
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Cell Membrane
• The cell membrane is a thin,bendable
cover that is wrapped around all cells.It
lets food,water,and gases enter the
cell,and it lets waste leave.
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Centrosomes
• Centrosomes are considered the
organizing center of a cell. Microtubules
are part of this system. These
microtubules exist within animals.
Created By: Hayden Neal
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