Definitely not. Scientific concepts related to cells involve things like cell structure, cell division, and cellular processes. Fanfic has to do with literature created by fans. The two are from completely different domains, and there's no way a cell in the scientific sense could 'absorb' fanfic. It's just not a scientific idea at all.
The phrase 'cell absorb fanfic' is rather strange. 'Cell' can have multiple meanings as mentioned before. Fanfic is a creative form of writing. It could be that someone was trying to be very creative and come up with a metaphorical idea where a 'cell' (again, not clear what kind of cell) is taking in the essence or elements of fan fiction. It could also be a miscommunication or a very niche - specific term within a particular group or discussion that we're not privy to without more context.
No. A cell is a biological unit that functions within the realm of biology. Fanfic is a form of written, fictional work created by fans. There's no biological mechanism for a cell to interact with or absorb fanfic.
Cells are biological units and Sailor Moon fanfic is a fictional story in written form. In a literal sense, a cell cannot absorb a fanfic as they exist in completely different realms. A cell absorbs nutrients, oxygen etc. in a biological context.
It's a really strange concept. If it were possible, perhaps the cell would gain some sort of 'information' in a very odd way. But since cells don't have the capacity for understanding language or stories in the way we do, it's really hard to say what would actually happen.
In some fanfics, Naruto absorbs the bloodline through a special jutsu. For example, he might find an ancient scroll that contains a jutsu allowing him to transfer and absorb the genetic traits related to a bloodline.
One major difference is that plant cells have cell walls while animal cells don't. This makes plant cells more rigid. Also, plant cells have chloroplasts for photosynthesis which animal cells lack. Instead, animal cells rely on consuming other organisms for energy.
I'm not sure specifically what a 'catherine cell' is in this context as the term is rather unclear. It could be a very specific or made - up concept within that particular story.
One of the main features is the endoplasmic reticulum which has two types, rough and smooth. The rough endoplasmic reticulum with ribosomes on it is involved in protein synthesis. The smooth one is involved in lipid synthesis. Another feature is the Golgi apparatus which packages and distributes substances. The lysosomes for waste management are also a main feature in Cell City.