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Cell Structure & Function
M.Potestades
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STUDENTS WILL: Define Cell Identify the 2 types of Cells
Know the structures and its functions
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VOCABULARY CELL PROKARYOTIC EUKARYOTIC CELL MEMBRANE CELL WALL NUCLEUS
CHROMOSOME
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basic unit of life capable of performing life functions.
Cell basic unit of life capable of performing life functions.
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Examples of Cells Amoeba Proteus Plant Stem Bacteria Red Blood Cell
Nerve Cell
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Prokaryotic Eukaryotic
Two Types of Cells Prokaryotic Eukaryotic
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Prokaryotic No membrane- bound organelles Few internal structures
One-celled organisms, ex-Bacteria
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Eukaryotic With membrane-bound organelles Multi-celled organisms Plant
Animal
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“Typical” Animal Cell
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“Typical” Plant Cell
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Cell Parts
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Surrounding the Cell
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Cell Membrane Protective outer covering of the cell “semi-permeable”
Allows certain substances to go in and out of the cell
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Cell Wall found in plant cells & bacteria only
Supports & protects cells Gives its shape Made up of lignin and cellulose
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Inside the Cell
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Nucleus Directs cell activities Contains genetic material - DNA
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Nuclear Membrane Surrounds the nucleus Made up of two layers
Openings allow material to enter and leave nucleus
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Chromosomes In nucleus Made up of DNA
Contain instructions for traits & characteristics
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Nucleolus Inside nucleus Contains RNA to build proteins
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Cytoplasm Gel-like mixture Surrounded by cell membrane
Contains hereditary material Where organelles are found
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