Hello everybody! I am Mr. Cell.

I will be teaching you about what I am made up of.

But first, what is a cell? 

In simple terms. A cell is the smallest unit of life. All living things are made of cells. I for example am part of a plant.

 But what makes up a cell?

Cells are made of these tiny things called organelles. They are basiclly the cell's organs. each organelle has its own job to do. Let me explain to you all the organelles of the cell.

The first organelle that I am going to explain to you is also the most important. The nucleus!

The nucleus is the organelle found at the center of the cell. Inside of the nucleus is DNA. The building block of life!

The DNA found in the nucleus stores information that can be used to make proteins when needed.

But what are proteins you may ask?

Proteins are large organic compounds needed for life. But how do you make proteins in the first place?

Proteins are first made when enzymes in the nucleus translate DNA into RNA. RNA is like DNA but it is only single stranded. The RNA leaves the nucleus through small holes in the nucleus. Then the RNA attaches to a ribosome. What is a ribosome? Ribosomes are small organelles whose purpose is to turn RNA into protiens.

Ribosomes are like translators that translate RNA into proteins. Ribosomes are made up of a large and small subunit.

But what happens to the protein after it is created? It goes to the endoplasmic reticulum. It is technically 2 organelles the smooth and rough endoplasmic reticulum. which has different purposes.

The purpose of the smooth endoplasmic reticulum is to make lipids which are important to living beings. And the rough Endoplasmic reticulum makes protiens.

After the protein is created it goes to the endoplasmic reticulum it goes to Another organelle called the Golgi apparatus. Which is like the cell's post office. It modifies and packages the proteins into a capsule called a vesicle, the vesicle with the protein then leaves the cell to start it's purpose.

Now you may be wondering, what protects me from everything around me. That would be the cell wall!

The cell wall provides structure for the cells. It also allows molecules to go in and out of the cell.