Give examples of membrane-bound cells and cells that are not membrane-bound.

Membrane-bound cells:
1. Animal cells
2. Plant cells
3. Fungal cells
4. Protist cells

Cells that are not membrane-bound:
1. Red blood cells (lack a nucleus and other organelles)
2. Bacteria (lack a true membrane-bound nucleus)
3. Archaea (lack a true membrane-bound nucleus)
4. Viruses (not considered living cells as they lack cellular structure)

Membrane-bound cells:

- Animal cells
- Plant cells
- Bacteria
- Fungi
- Protists

Cells that are not membrane-bound:

- Viruses
- Viroids
- Prions