The 'walking' thing pulling the blob is likely a kinesin molecule - it's main job is to pull blobs to and from the cell membrane.
I'm not too sure were the blob (it's a vesicle, and it's full of proteins) is being pulled - maybe the Golgi Apparatus. Usually proteins are processed there for secretion from the cell.
I'm not too sure were the blob (it's a vesicle, and it's full of proteins) is being pulled - maybe the Golgi Apparatus. Usually proteins are processed there for secretion from the cell.