Question

answer please 3 points

Answer 1

In its simplest sense, bacterial cells do not have a nucleus to contain their DNA (the DNA is sequestered in a region known as the nucleoid), while both animal/plant cells have distinct nuclei, hence they are classified as eukaryotes (bacteria are prokaryotes).

Other less evident differences include size (bacteria cells are generally much smaller than plant & animal cells), the presence of extrachromosomal DNA (bacterial cells can contain plasmids, unlike plant/animal cells), the size of ribosomes (bacterial cells have 70S ribosomes, while plant/animal cells have 80S ribosomes), the presence of organelles (bacterial cells have no organelles, unlike plant/animal cells), the presence of introns in DNA & histone proteins (most bacteria cells do not have introns in their DNA and histone proteins, unlike plant/animal cells), metabolic pathways & metabolites in bacterial cells vs plant/animal cells, etc.



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