Can electrons be visible?

plasma membrane, cell wall, nucleus, chloroplast, ,mitochondria, vacuole, Golgi apparatus, peroxisome, lysosome, endoplasmic riticulum, ribosome, flagella, cilia

The photon energy is converted to mechanical energy of the absorbing electron.

There is no gas in the bulb, only vacuum. The blue beam we see is a special flourid mix that sends out the blue stripe when the electron touches the paper and exidates the electrons in it.

Bacteria have no organelles.

Electron microscopes don't have the resolving power to see individual molecules.