3.phosphate group: chain of 3
Slide 16
Three phosphate groups-(two with high energy bonds
Last phosphate group (PO4) contains the MOST energy
Slide 17
Process is called phosphorylation
Occurs continually in cells
Enzyme ATP-ase can weaken & break last PO4 bond releasing energy & free PO4
Slide 18
Organisms use enzymes to break down energy-rich glucose to release its potential energy
This energy is trapped and stored in the form of adenosine triphosphate(ATP)
Slide 19
It is estimated that each cell will generate and consume approximately 10,000,000 molecules of ATP per second
Slide 20
The exergonic hydrolysis of ATP is coupled with the endergonic dehydration process by transferring a phosphate group to another molecule.
ATP
ADP + P
H2O
H2O
Slide 21
Hydrolysis of ATP
ATP + H2O ADP + P (exergonic)
Slide 22
Hyrolysis is Exergonic
Energy Used by Cells
Slide 23
Dehydration of ATP
ADP + P ATP + H2O (endergonic)
Dehydration (Remove H2O
Slide 24
Dehydration is Endergonic
Energy is restored in Chemical Bonds
Slide 25
Slide 26
How many high energy phosphate bonds does ATP have?
Slide 27
Which is true of photosyntheis?
Anabolic or Catabolic
Exergonic Or Endergonic
Slide 28
The breakdown of ATP is due to:
Dehydration or Hydrolysis
H2O added or H2O removed
Slide 29
Which Reactions are often Coupled in Organisms
Hydrolysis or Dehydration
Anabolism or Catabolism