What are the organelles revealed by an electron microscope?

Organelles that can be visualized using an electron microscope include the nucleus, mitochondria, endoplasmic reticulum, Golgi apparatus, lysosomes, peroxisomes, and cytoskeleton components like microtubules and microfilaments. Each of these organelles has a specific structure and function within the cell that can be observed at high resolution with an electron microscope.