Cell membranes protect the cell, and creates a controlled environment within the cell.

The cell membrane is like a fence, it keeps it needs in and everything it doesn't want out.

The nucleus is the brain of the cell. It contains genetic information, and coordinates activities within the cell. 

The nucleus is like the principal at a school, it is in charge of everything that happens there.

Cytoplasm is very important, it protects the genetic material in the cell and puts a buffer around other organelles so they don't damage each other.

Cytoplasm is like bubble wrap, it cushions organelles so they don't break. 

The mitochondria produces most of the energy the cell uses, it is known as the powerhouse of the cell. 

Mitochondria is like a granola bar, it gives the cell energy.

The golgi body is responsible for processing and packaging proteins created by the cell. 

The golgi body is like a factory, it processes and packages proteins for the body.

The endoplasmic reticulum creates proteins for the cell.

The endoplasmic reticulum is like a farmer, it produces proteins like a farmer would crops.

The ribosome is in charge of doing two things. They decode messages from the nucleus and create peptide bonds.

The ribosome is like a computer, it decodes messages to communicate it's functions.

The cell wall is found only in plant cells and provides more protection for cells from stress.

The cell wall is like the exterior of your house, it adds extra protection from bad people or elements.