Can pseudopods produce oxygen and are a source of foods for other organisms?

Pseudopods themselves do not produce oxygen; they are extensions of the cell membrane used by certain protists, like amoebas, for movement and feeding. However, organisms that possess chloroplasts, like certain algae, can use pseudopods to capture food while also performing photosynthesis to produce oxygen. Additionally, these photosynthetic protists can serve as a food source for other organisms in the ecosystem.