the camera
All the cell organelles present in the cell are essential as each one of them have their specific function.
Something would have to be essential.. Mother nature has chosen cells as an essential thing to all living organisms.
Cells are to small to see so using a microscopes would allow you to see it up close.
a nucleus, cytoplasm, cell membrane, mitochondria, vacuole, ribosomes, endoplasmic reticulum, chloroplast, Golgi complex/apparatus, and a lysosome.