Monday, November 21, 2011

How are bacteria cells and animal cells similar? How are they different?

Similar -


1. have DNA to direct formation of proteins


2. have cytoplasm, plasma membrane


3. carry on usual life processes: cellular respiration, reproduction, metabolism, gaseous exchange, ...





Different -


1. Bacteria are prokaryotes with no nucleus or membrane-bound organelles; animal cells are eukaryotic with nucleus and organelles.


2. Bacteria are unicellular; animals multicellular.


3. Bacteria have cell walls outside the plasma membrane; animals have no cell walls.


4. Bacteria have a single circular chromosome; animals have distinct chromosomes.

daphne

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