3 ms·
The cyanobacterium itself is a photosynthetic cell. Bacteria are cells. The thylakoid membrane is a structure inside those cells. You seem to be confusing this
by andrewflnr 3y ago
The cyanobacterium itself is a photosynthetic cell. Bacteria are cells. The thylakoid membrane is a structure inside those cells.
You seem to be confusing this with the origin of eukaryotic, chloroplast-based photosynthesis, which is indeed a different question.
- denton-scratch 3y agoYou're right: I probably confounded "cells" with eucaryotic cells. My understanding (from school biology half a century ago) is that a strong candidate for the origin of chloroplasts is cyanobacteria, incorporated as guests. I'm not sure that eucaryotic cells are the only kind of "big" cells that could adopt cyanobcteria as organelles. Anyway, I wasn't considering bacteria as "cells".
- andrewflnr 3y agoYeah, the chloroplasts=cyanobacteria thing is pretty near settled these days. :)