Cell Structure and Function
Cell Theory
All Living things are made up of cells
Cells are the smallest working units of all living things
All cells come from pre-existing cells through cell division
CellA cell is the smallest unit that is capable of performing life functions
Cell MembraneOuter membrane of cell that controls movement in and out of the cell
Double layer
Cell WallMost commonly found in plant cells & bacteria
Supports & protects cells
NucleusControls center of the cell
Contains genetic material - DNA
Nuclear Membrane
Surrounds nucleus
Made of two layers
Openings allow material to enter and leave nucleus
NucleolusInside nucleus
Contains RNA to build proteins
CytoplasmGel-like material between the nucleus and cell membrane
Endoplasmic ReticulumMoves
materials around in cell
Smooth type: lacks ribosomes
Rough type ribosomes embedded in surface
RibosomesEach cell contains thousands
Make proteins Found on ribosomes & floating throughout the cell
MitochondriaReleases energy from nutrients
Golgi BodiesArea that stores and packages chemicals
LysosomeTransports undigested material to cell membrane for removal
VacuolesMembrane-bound sacs for storage, digestion, and waste removal
ChloroplastUsually found in plant cells
Contains green chlorophyll
Where photosynthesis takes place
CentrioleFound in most animal cells
Any Questions?
References: http://science-class.net/