two types of cells prokaryotic eukaryotic prokaryotic eukaryotic
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What do all What do all cells have in cells have in common?common?
ALL cells have a ALL cells have a cell membrane, cell membrane, cytoplasm, DNA, cytoplasm, DNA, and ribosomesand ribosomes
Cell membraneCell membrane – – the flexible outer the flexible outer covering of a cell covering of a cell that controls what that controls what goes in and outgoes in and out
What do all cells have in What do all cells have in common?common?
CytoplasmCytoplasm – the – the liquid substance that liquid substance that fills up a cellfills up a cell
DNADNA – cell – cell instructionsinstructions
RibosomesRibosomes- a part - a part in a cell that makes in a cell that makes protein according to protein according to cell instructionscell instructions
What are the 2 main types of What are the 2 main types of cells?cells?
1.1. ProkaryoticProkaryotic Cells that lack Cells that lack
a a nucleusnucleus
2.2. EukaryoticEukaryotic Cells that have Cells that have
a a nucleusnucleus
What is a nucleus?What is a nucleus?
NucleusNucleus – Holds the genetic information – Holds the genetic information of the cell (DNA) and controls most cell of the cell (DNA) and controls most cell activitiesactivities
Prokaryotic CellsProkaryotic Cells
Small, simple cells Small, simple cells with a cell with a cell membrane, membrane, cytoplasm, DNA, & cytoplasm, DNA, & ribosomesribosomes
No nucleusNo nucleus Single-celled Single-celled
(unicellular) (unicellular) organismsorganisms
Example: bacteriaExample: bacteria
Example of Prokaryotic CellsExample of Prokaryotic Cells--Nostoc Nostoc (Cyanobacteria)(Cyanobacteria)
Eukaryotic Eukaryotic CellsCells
Larger more complex Larger more complex cells with a cell cells with a cell membrane, cytoplasm, membrane, cytoplasm, DNA, & ribosomesDNA, & ribosomes
Have a nucleus and Have a nucleus and other organellesother organelles
Organelles Organelles - - specialized parts specialized parts inside a cell with a inside a cell with a particular functionparticular function
Either single-celled or Either single-celled or part of a multicellular part of a multicellular organismorganism
Example: plant, Example: plant, animal, fungus, animal, fungus, protistsprotists
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