Q2: ATP-ADP Cycle Flashcards
It mediates most energy coupling in cells.
ATP
Adenosine Triphosphate
It powers cellular work (e.g. active transport)
ATP
Adenosine Triphosphate
Composition of ATP structure
- nitrogen base adenine
- sugar ribose
- Chain of 3-phosphate groups
Adenosine Triphosphate (ATP) Functions
- Chemical work
- Transport work
- Mechanical work
- RNA production
The process of breaking down bonds between the phosphate groups.
ATP Hydrolysis
This happens when a water molecule breaks the terminal phosphate bond.
ATP Hydrolysis
True or False
The three phosphate groups, in order of furthest to closest from the ribose sugar, are labeled alpha, beta, and gamma.
False
closest to furthest from the ribose sugar
The bonds between the phosphate groups are called _______________________.
phosphoanhydride bonds
True or False
ATP Hydrolysis releases so much energy because of the negative charges of the phosphate groups.
True
ATP hydrolysis forms ____________ and releases _______________.
- adenosine diphosphate (ADP)
- free energy
It leads to change in the shape of protein and in its ability to bind to another molecule.
ATP Hydrolysis
They promote crucial protein shape changes during important cellular process.
- phosphorylation
- dephosphorylation
Differentiate phosphorylation and dephosphorylation
phosphorylation: ADP to ATP; dephosphorylation: ATP to ADP
ATP is ________, which means it can be regenerated by the addition of phosphate to ADP.
renewable
It provides the free energy to phosphorylate ADP.
Catabolism
