So, I was reading one of the old threads, and someone brought up a remark somewhere along the lines of “microbes aren’t that simple, you’d be surprised what they can do” and for some odd reason it made me think of the digestive systems of certain amoeba which include oral and anal grooves as well as food vacuoles. And, well, who better than me (a completely new person to these forums) to bring this all up!
So, for starters, let me explain the rough components of the digestive system of the cell:
As you can see, amoeba digestive systems are quite complex; they include oral and anal grooves in which whole food enters and waste exists, a gullet where food is trapped while a food vacuoles form to transport the meal deeper into the cell. The addition of the digestive system could also add lysosomes as a component for digestion.
I’d imagine the whole system would take at least 100 MP to get fully up and running, with 35 for the oral groove, 35 for the anal pore, and 30 per food vacuole, with food vacuoles working as the “modular” portion of the system. The system would allow for absorbing larger clumps of nutrients (perhaps “chunks” of resources that yield a lot of a given resource but have to be broken down) and from further away (perhaps even allowing the engulfing of small iron rocks for continuous sources of iron, allowing ferrocytes to have a reliable source of iron away from rocks)
In larger cells (I’m talking like 8 or more evolution stages spent on nothing but making the cell bigger) it could also provide an efficiency boost, allowing materials and waste easy transport around the cell.
This could also go well with endosymbiosis (as the mouth would make it easy to absorb larger prey) and my other concept of modular membrane-bound organelles, where it could make it easy to transport materials into and out of membranes.