Well, blobs are organic too right? In which case, according to biological law, their cells need to either be oxygen dependent, AKA normal life, or have hydrogenosomes next to their cell core, but that is only possible on microscopic levels. And anaerobically system only functions on single cells.
But the blob is an alien life form… Hmmm, idk, we humans haven’t had samples to process of cells from other plants or rocks, so hard for me to say if the laws of cellular biology apply universally, but some science tends towards that some basic laws of cells apply universally
** And if you said that blobs were a mass of collective multi-celled cellcular organisms, then how does it function as one unit at any time?
Actually know that i think off it, the blob could ferment the flesh of its host to create ATP