3.1.6 ATP Flashcards
Q: What is a molecule of ATP composed of?
A: A molecule of ATP is composed of ribose (a sugar), adenine (a nitrogenous base), and three phosphate groups.
Q: What enzyme catalyzes the hydrolysis of ATP?
A: The enzyme ATP hydrolase catalyzes the hydrolysis of ATP.
Q: What are the products of ATP hydrolysis?
A: The products of ATP hydrolysis are adenosine diphosphate (ADP) and an inorganic phosphate group (Pi).
Q: How is the hydrolysis of ATP used in cells?
A: The hydrolysis of ATP can be coupled to energy-requiring reactions within cells, providing the necessary energy.
Q: What happens to the inorganic phosphate released during ATP hydrolysis?
A: The inorganic phosphate (Pi) released can be used to phosphorylate other compounds, often making them more reactive.
Q: How is ATP resynthesized?
A: ATP is resynthesized by the condensation of ADP and Pi, a reaction catalyzed by the enzyme ATP synthase during photosynthesis or respiration.
