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

Answer 1

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.