Cell structure and function Chapter 7 TB page 159-189
Cell Theory Fundamental Concept of Biology that States: All living things are made up of cells. Cells are the basic units of structure and function in living things. New cells come from existing cells.
Cells The basic unit of all forms of life All cells have dna Dna is the molecule that carries genetic information All cells have a thin flexible barrier called a cell membrane
2 main kinds of cells Prokaryotes eukaryotes “before nucleus” Dna floats freely Unicellular organisms ex: bacteria Smaller and simpler Can do all the same functions as eukaryotes to survive “true nucleus” Dna enclosed in the nucleus Typically Multicellular organisms Ex: plants, animals, fungi Larger and more complex Has Specialized structures with specific jobs
Where is a cell in the body? http://scaleofuniverse.com/