There does not appear to be a widely-known concept or term called "valocule." It is possible that it is a rare or specialized term in a particular field or context. More information would be needed to provide a precise definition.
The inside of a cell contains: nucleas,cytoplasm,golgi bodies, cell membrane, ilybosome,ribosome,valocule, smooth endoplasmic reticlum, rough endoplasmic reticulum, and of course DNA.
All plant cells have a cell membrane, cytoplasm, a nucleus, and organelles such as chloroplasts and mitochondria. These components work together to carry out essential functions for the plant cell's survival and growth.
It looks funny it has almost no form, it has no cel-wall.