Energy And ATP Flashcards
What does ATP stand for?
Adenosine triphosphate
What type of molecule is ATP
A nucleotide derivative
What does ATP contain?
A ribose sugar
An adenine base
3 phosphate groups
What is adenosine
The ribose sugar and the adenine base
What type of energy source is ATP?
Immediate energy source due to unstable bonds between the phosphate groups which lowers activation energy
What forms when ATP is hydrolysed?
ADP
Pi-inorganic phosphate
Which enzyme catalyses the hydrolysis reaction of ATP?
ATP hydrolase
ADP and Pi (inorganic phosphate) can be combined in what type of reaction?
Condensation reaction
Which enzyme catalysis the reaction to resynthesise ATP?
ATP synthase
How is energy released from ATP?
High energy bonds between phosphate groups are broken
What does ATP provide energy for?
-metabolic process (anabolic)
- movement ( muscle contraction)
- Active transport (against concentration gradient)
- Secretion (of product from cell)
- Activation of molecules (phosphorylation)
What type of reaction is the hydrolysis of ATP to ADP?
Exergonic (releases energy)
What type of reaction is the formation of ATP from ADP and Pi
Endergonic (uses energy)
How is little energy wasted when used in a cell
ATP hydrolysis releases energy in small manageable amounts
What does rapid re synthesis of ATP after hydrolysis allow?
Continual supply of energy available in the cell
