As a supervisor in the infection control unit, you hire a local microbiologist to analyze samples from your hospital's hot-water tank for microbial contamination. Although she was unable to culture any microbes, she reports that basic microscopic analysis revealed the presence of cells 0.8 µm in diameter that lacked a nucleus. Transmission electron microscopy showed that the cells lacked membrane-bound organelles but did contain ribosomes. Which domain of life do you hypothesize these cells represent? Discuss any additional analysis that could be performed to determine this classification most accurately.
Added by Anne F.
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8 µm in diameter, lack a nucleus, lack membrane-bound organelles, but contain ribosomes. Based on these characteristics, we can hypothesize that these cells belong to the domain Bacteria. Show more…
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