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Cells that lack a membrane-bound
publish date: 2026/06/16 07:40:34.612093 UTC
One of the most fundamental distinctions in cell biology is whether a cell has a true membrane-bound nucleus or not.
Cells that lack a membrane-bound nucleus are called (1), while cells that have one are called (2).
Please drag and drop the selected option in the right place or type it instead
prokaryotes
autotrophs
eukaryotes
heterotrophs
Correct Answer
(1) prokaryotes
(2) eukaryotes
Explanation
The two fundamental cell types:
- Prokaryotes - cells that lack a membrane-bound nucleus. Their genetic material floats freely in the cytoplasm in a region called the nucleoid. Examples: bacteria and blue-green algae (cyanobacteria).
- Eukaryotes - cells with a true nucleus enclosed by a nuclear membrane. Examples: plant cells, animal cells, fungi, and protists.
Reference
Biology: A Self-Teaching Guide