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Cells
The Building Blocks of Life
The cell is the structural
and functional unit of
all known living
organisms.
It is the simplest unit of
an organism that is
classified as living, and
is sometimes called the
"building block of life."
• Some organisms, such as bacteria, are
unicellular
(consist of a
single cell).
Other organisms, such
as humans, are
multicellular.
(Humans have an
estimated 100 trillion)
Diagram of an Animal Cell
Cells have specialized parts
called organelles
Diagram of a Plant Cell
Plant cells have cell walls and
chloroplasts
Plant Cell Wall
Cell Wall is
shown in
green
A cell wall is a rigid layer surrounding a plant
cell, located external to the cell membrane,
that provides the cell with structural support,
and protection.
Chloroplasts
Chloroplasts are organelles found in
plant cells that conduct
photosynthesis. Chloroplasts absorb
sunlight and use it in conjunction with
water and carbon dioxide to produce
sugars and oxygen
Cell Nucleus
Cell
Nucleus
shown as
Number 2
The nucleus is a organelle found in
most cells. It contains most of the
cell's genetic information,
organized as long DNA molecules
to form chromosomes.
Cytoplasm
Cytoplasm is
shown as light
blue area
Cytoplasm is a gel-like, semi-transparent
fluid that "fills" most cells. Cytoplasm
allows for the movement of materials
throughout the cell’s interior.
Work Cited
Slide 2:
Cells in Culture, http://en.wikipedia.org/wiki/Cell_(biology) August 21, 2007
Slide 3:
Bacteria, http://en.wikipedia.org/wiki/Image:EscherichiaColi_NIAID.jpg
August 21, 2007
Man on Moon, http://en.wikipedia.org/wiki/Image:Apollo_Moonwalk2.jpg
August 21, 2007
Slide 4:
Slide 5:
Diagram of an animal cell, http://en.wikipedia.org/wiki/Image:Biological_cell.svg
August 21, 2007
Diagram of a plant cell,
August 21, 2007
http://en.wikipedia.org/wiki/Image:Plant_cell_structure_svg.svg
Slide 6:
Diagram of Cell Wall, http://en.wikipedia.org/wiki/Cell_wall August 21, 2007
Slide 7:
Plant cells with visible chloroplasts, http://en.wikipedia.org/wiki/Chloroplast August 21, 2007
Slide 8:
Diagram of an animal cell, same as slide 4, August 21, 2007
Slide 9: Cell structure diagram, http://en.wikipedia.org/wiki/Cytoplasm August 21, 2007