1What is ATP?
ATP is the immediate source of energy in a cell
2What is the process of releasing energy from glucose called?
Respiration
3Why can’t a cell use glucose directly for energy?
A cell cannot use glucose directly for energy
4What is made from the energy released from glucose in respiration?
ATP
5What components make up ATP?
Adenine, ribose sugar, three phosphate groups
6What is ATP classified as because it’s a modified nucleotide?
A nucleotide derivative
7What happens to ATP once it’s made?
ATP diffuses to the part of the cell that needs energy
8Where is the energy in ATP stored?
High-energy bonds between phosphate groups
9How is energy in ATP released?
Via hydrolysis reactions
10What does ATP break down into when energy is needed?
ADP and Pi (Adenosine diphosphate and Inorganic phosphate)
11What type of reaction breaks down ATP, and what enzyme catalyzes it?
A hydrolysis reaction catalyzed by ATP hydrolase
12What are reactions called when ATP hydrolysis directly powers them?
Coupled reactions
13What is the process of adding an inorganic phosphate to another compound called?
Phosphorylation
14What is the effect of phosphorylation on a compound?
It makes the compound more reactive
15What enzyme catalyzes the re-synthesis of ATP from ADP and Pi?
ATP synthase
16During which processes is ATP re-synthesized?
Respiration and photosynthesis