Cell Biology
Levels of Organization
chemical
basic chemicals
proteins
50%
lipids
50%
cell
building block
structural components
cell membrane (plasmalemma)
cytosol (cytoplasmic liquid)
organelles (membrane surrounded)Â
nucleus
mitochondria
Golgi Apparatus
Edoplasmic Reticulum
Rhibosomes
Lysosomes
cytoskeleton
peroxisomes
inclusion (non membrane surrounded)
functional aspects
intracellular functions
extracellular functions
volume of cells in body
2/3 inside
1/3 outside
tissue
organs
systems
organism
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