Energy
Storage
and
Transformation
ATP Info
Biology 30
Mrs. S. Pipke-Painchaud
Where is energy
released in the cell?
• Mitochondria
• Which carries out what
important energy process?
• Cellular Respiration
UTMB http://cellbio.utmb.edu/cellbio/mitoch1.htm
Energy . . .
• What is the common form of
energy inside of cells?
• ATP
• Released energy is temporarily
stored in high-energy ATP
Molecules
• ATP – Adenosine TriPhosphate
Animation Intro
• Dr. Saul’s Biology
• http://biologyinmotion.com/atp/i
ndex.html
What is ATP?
• Composed of:
• 5 – carbon sugar (ribose)
• A nitrogen base (adenine)
• Three (3) phosphate groups
http://upload.wikimedia.org/wikipedi
ATPs Chemical Formula
• C10H18O15N5P3
Image from Wikipedia:
http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/A/ATP.html
The Process
• When energy is needed from
ATP, an enzyme breaks the
bond between two phosphate
groups, releasing one
phosphate and energy.
• The remaining molecule is ADP
(Adenosine diphosphate)
Animation - process
• Kaiser:
http://student.ccbcmd.edu/~gkai
ser/biotutorials/energy/atpan.ht
ml
• When energy released by
cellular respiration needs to be
stored, a phosphate group is
added to ADP forming ATP, and
energy is stored in the bond
between the phosphate groups.
ATP’s Lifespan
• ATP Average Lifespan
• 50 seconds
Demos
• Human Example In Class
• Blocks and Elastics model
Resources
• Enzymes:
• http://www.uic.edu/classes/bios/bio
s100/lecturesf04am/lect04.htm