The most common way to look inside a cell is to use a microscope. There are several different kinds of microscopes (fluorescent microscopes, electron microscopes, light microscopes) as well as several different kinds of contrast generating techniques (phase contrast, DIC) which help to see different parts of the a cell more clearly. Often times a dye is also used to help visualize the inside of a cell.
A microscope.
I believe the answer is the "plasma membrane"!
Probably an electron microscope.
The cell membrane (plasma membrane) is inside the cell wall. You can sometimes see the cell membrane if you look carefully but its right under the cell wall
Microscopes coupled with techniques used to separate them from inside the cell.
Inside the molecule that contains cell walls.
In plant cells, which contain cell walls, there is a cell membrane inside the cell wall. Inside the membrane is the cytoplasm which holds all the cell's vital organelles.
The shell of an egg needs to be big enough to keep the chick inside until it is ready to hatch. The "Egg" you see is not a single cell. The cells are inside the shell you see. These single cells are like normal cells, you need microscopes to see them.
A light microscope is typically used to see the structures inside a cell, as it provides enough magnification to observe organelles like the nucleus and mitochondria. Electron microscopes can also be used for higher resolution imaging of cellular structures.
It is an organelle inside the cell.
They pretty well pack the inside of the cell.
You can tell it is non living, because it is filled with air. Under a microscope you will be able to only see a cell wall, because the inside is air.