ATP

Megan Lausch

What is ATP and why is it important?

ATP is the biochemical energy cells use to "work." This energy is spent like money; it is stored and therefore distributed when needed. This energy is important because it allows the cells to function. ATP lets the cells perform all of their functions.

What is it made of?

ATP is made of three phosphate groups, ribose, and adenine. The ribose and adenine together is considered the Adenosine. These are all held together by bonds, and the bonds are where the energy is stored.

How does ATP work?

When bonds of a cell are broken, energy is released. When bonds are formed there needs to be energy input into the bonds. Within the three phosphate group, the last two are classified as a high energy bond. These bonds are broken and that causes energy to be released. If one group of the phosphates are taken away, it would no longer be considered ATP, so ADP is released.

How does a cell get more ATP?

ATP and ADP are in a constant cycle. When ATP is released to be used, the bond is broken between the phosphate groups. Since the bond is broken, there are now only two phosphate groups. This is now known as ADP. Energy is added to ADP from the process of cellular respiration, and glucose is broken down and that makes the energy release from the bonds. The ADP is cycled back to ATP.

What types of activities would the cell use ATP for?

It uses ATP to transport molecules in the cell, it can control chemical reactions and send messages to other parts of the cells. It can also bond to proteins.