FUNCTIONAL ANATOMY OF PROKARYOTIC AND EUKARYOTIC CELLS

FUNCTIONAL ANATOMY OF PROKARYOTIC AND EUKARYOTIC CELLS -...

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FUNCTIONAL ANATOMY OF PROKARYOTIC AND  EUKARYOTIC CELLS   All cells share numerous characteristics, but cells of living things can be divided into 2 basic  types. Here is a quick comparison. CHARACTERISTIC PROKARYOTIC  EUKARYOTIC Size Smaller---typical size is  0.2 - 2  μ  m in diameter Larger---typical size is 10 -  100  μ  m in diameter Nucleus No nuclear membrane or  nucleoli (nucleoid) True nucleus with nuclear  membrane and nucleoli Membrane-enclosed  organelles Absent Many, including  lysosomes, Golgi complex,  chloroplasts Flagella Consist of 2 protein  building blocks Complex; consist of  multiple microtubules Phagocytosis None Some can carry on  phagocytosis Glycocalyx Present as a capsule or  slime layer Present in some cells that  lack a cell wall Cell wall Usually present, 
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Unformatted text preview: chemically complex (peptidoglycan) When present, usually simple, NO peptidoglycan Plasma membrane No carbohydrates, almost all lack sterols Sterols and carbohydrates incorporated Cytoplasm No cytoskeleton Cytoskeleton Ribosomes Smaller size (70S) Larger size (80S) except those within organelles Chromosome (DNA) Single circular Multiple linear arrangement chromosome, no histones chromosomes with histones Cell division Binary fission Mitosis Sexual reproduction No meiosis; transfer fragments of DNA only Meiosis Since bacteria are all prokaryotic, and are the only prokaryocytes, the following terms can be used interchangeably: Bacteria (both eubacteria and archaea) Prokaryocytes Prokaryotes Prokaryotic organisms Prokaryotic cells...
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FUNCTIONAL ANATOMY OF PROKARYOTIC AND EUKARYOTIC CELLS -...

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