Transcript Cell Definitions

Definitions
By Jake Burkle
Cell Membrane
• Protective outer covering of all cells that is made
up of a double layer of fat like molecules
•
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Cytoplasm
• Constantly moving gel-like mixture inside the
cell membrane that contains heredity material
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Cell Wall
• Rigid structure that encloses , supports,
and protects the cells of plants algae,
fungi, and most bacteria
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Organelle
Structure in the cytoplasm of a eukaryotic
cell that can act as a storage site, process
energy, move materials, or manufacture
substances
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Nucleus
Organelle that controls
all the activities of a
cell and contains
hereditary
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Yellow is nucleus
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Ribosome
• Small structure on which cells make their
own protein
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Tissue
• Group of similar cells that work together to
do one job
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Organ
Structure,
such as the
heart,
made up of
different
types of
tissues that
all work
together
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Chloroplast
Green, chlorophyll-containing, plant-cell
organelle that converts sunlight, carbon
dioxide, and water into sugar
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Cell Theory
The theory is one of the major theories in science
because it tells the most important description of
a cell. It is also very important because it was
not observations of one person, but many
scientists. Some of them were Schleidan,
Schwann, and Virchow.
The cell theory is…
1. All organisms are made up of cells.
2. Cells are the basic unit of structure and
function in all organisms.
3. All cells come from cells that already exist.
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