Prokaryotic — Science definition
Having DNA loose in the cytoplasm with no enclosing nucleus, as bacteria do; typically 1 to 5 micrometres long.
Where it is taught
- Characteristics of Life & Biological Diversity — Scientific Inquiry & Diversity of Life, Life Science & Scientific Inquiry, Grade 7
In use
Prokaryotic cells keep their DNA loose in the cytoplasm with no enclosed nucleus; bacteria are the familiar example, and they are by far the most numerous organisms on Earth.
Characteristics of Life & Biological Diversity
Questions using prokaryotic
Problem 1
Which record supports a prokaryotic cell?
- No DNA at all
- DNA and ribosomes but no membrane-enclosed nucleus
- A nucleus and no membrane
- Only a plastic motor
Answer and explanation
DNA and ribosomes but no membrane-enclosed nucleus
Prokaryotes contain genetic material and ribosomes without a membrane-enclosed nucleus.