[04] Role of ATP in Bioenergetics Flashcards
What does ATP stand for in bioenergetics?
Adenosine Triphosphate
What is ATP’s role in bioenergetics?
ATP serves as the main energy currency of the cell.
Why is ATP often called the energy currency of the cell?
Because it can store and supply the energy needed for various cellular functions.
What is the structure of an ATP molecule?
ATP consists of an adenosine molecule bound to three phosphate groups.
What happens when ATP is hydrolyzed?
It releases energy by breaking a high-energy phosphate bond, converting ATP to ADP (Adenosine Diphosphate)
What is ADP in the context of bioenergetics?
Adenosine Diphosphate, it is produced when ATP loses a phosphate group during energy release.
How is ATP regenerated from ADP?
Through the process of cellular respiration where energy from glucose or other substrates is used to add a phosphate group to ADP.
Which biological processes use energy from ATP?
- Muscle contraction
- Protein synthesis
- Cell division
- Transport across cell membranes
What is the role of mitochondria in ATP production?
Mitochondria host the process of oxidative phosphorylation, which generates the majority of ATP in cells.
Can ATP be stored in the body?
No, ATP is not stored in the body. It is produced on-demand as per the energy requirements of the body.
What is the ATP-ADP cycle?
It’s the process of ATP converting to ADP as it releases energy and then being converted back to ATP as energy is stored.
