Draw and label an animal cell as seen under an electron microscope.

Now the first thing to point out when looking at images under an electron microscope is the scale. For example, something that you draw as 3cm long, may in fact be 10, 000 times smaller in real life. So it is important to note that what we are drawing is definitely not life size. So, lets begin by drawing a rough-oval shape, however this shape does not need to be precise or specific. After this, add another oval shape outside the line you just drew, and this will make the cell membrane to your animal cell. The cell membrane is what controls the entry and exit of any substances that the cell needs to use or to dispose of. It is called semi-permeable, which means that only some substances can pass through it. Next we will draw the Nucleus, which contains the cell's DNA and therefore controls most of its activity. As seen on the whiteboard, the nucleus is a sphere shape, with a smaller circle inside as well. Close to the nucleus, we can draw our ribosomes. These are very small spherical structures which are involved in making proteins, and can be found 'free' or 'attached' to a structure as seen on the whiteboard. Next, we will draw the mitochondria, which are vital organelles because respiration occurs here, and therefore are typically called the 'powerhouse' of the cell. When drawing these structures, you will only need to draw around 2/3 but in fact there would be many more in a real cell. Begin by drawing a small oval shape, and then add a shape inside with many crevices, as seen on the whiteboard. The 'empty' space in the cell is called the cytoplasm, and is actually a jelly-like substance, where the cell's chemical reactions take place.