2- The Nucleolus

The nucleolus is the "recipe book", I guess you could say, of the cell. It gives the recipe for protein to the ribosomes. Located inside the nucleus, it is in both plant and animal cells.

Picture:

My Example:

The nucleolus is needed to "feed" the cell, as chefs are needed to feed people. It's like if you were at a banquet, you would expect food, right? The nucleolus sends the recipe to the ribosomes, that make the food. So the nucleolus is like a recipe book.