CHAPTER 7 CELL STRUCTURE & FUNCTION PGS. 168 - 199 CELL STRUCTURE & FUNCTION.
Cell Structure & Function
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Transcript of Cell Structure & Function
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Cell Structure & Function
http://koning.ecsu.ctstateu.edu/cell/cell.html
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Cell Theory
All living things are made up of cells.
Cells are the smallest working units of all living things.
All cells come from preexisting cells through cell division.
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Definition of Cell
A cell is the smallest unit that is capable of
performing life functions.
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The Cell structures and functions
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Cell Membrane
Outer membrane of cell that controls movement in and out of the cell
http://library.thinkquest.org/12413/structures.html
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Endoplasmic Reticulum Moves materials
around in the cell transports of cellular
materials “packaging system”
http://library.thinkquest.org/12413/structures.html
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Cell Wall
Most commonly found in plant cells & bacteria
Supports & protects cells
http://library.thinkquest.org/12413/structures.html
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Nucleus Directs
cell activities
Contains genetic material - DNA
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Nucleolus
Inside nucleus
Contains RNA to build proteins
http://library.thinkquest.org/12413/structures.html
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Chromosomes
In nucleus Made of DNA Contain
instructions for traits & characteristics
http://library.thinkquest.org/12413/structures.html
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Cytoplasm
Thick Gel-like mixture that protects the internal parts of the cell
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Ribosome
Each cell contains thousands of ribosome
Make proteins and build structures
http://library.thinkquest.org/12413/structures.html
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Mitochondria
Produces energy (ATP) through chemical reactions – breaking down fats & carbohydrates
http://library.thinkquest.org/12413/structures.html
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Lysosomes Digestive 'plant' for
proteins, fats, and carbohydrates
Transports undigested material to cell membrane for removal
http://library.thinkquest.org/12413/structures.html
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Vacuoles
Membrane-bound sacs for storage, digestion, and waste removal
http://library.thinkquest.org/12413/structures.html
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Chloroplast
Usually found in plant cells
Where photosynthesis takes place
http://library.thinkquest.org/12413/structures.html