Department of Energy Argonne National Laboratory Office of Science NEWTON's Homepage NEWTON's Homepage
NEWTON, Ask A Scientist!
NEWTON Home Page NEWTON Teachers Visit Our Archives Ask A Question How To Ask A Question Question of the Week Our Expert Scientists Volunteer at NEWTON! Frequently Asked Questions Referencing NEWTON About NEWTON About Ask A Scientist Education At Argonne Energy Molecules Usage
Name: Bill
Status: Other
Grade:  Other
Location: N/A
Country: United States
Date: February 2005


Question:
Why do our body use ATP to provide energy but not others like GTP, CTP or TTP? They are all in side our body.



Replies:
The way things evolved were that the enzymes involved in the electron transport chain can phosphorylate ADP to produce ATP but not GDP to produce GTP. Also, the enzymes involved in catalyzing glycolysis can only add PO4 to ADP and not GDP, CDP or UDP. Remember enzymes are specific because only molecules with the right shape and charge can fit into their active sites.

Ron Baker, Ph.D.



Click here to return to the Molecular Biology Archives

NEWTON is an electronic community for Science, Math, and Computer Science K-12 Educators, sponsored and operated by Argonne National Laboratory's Educational Programs, Andrew Skipor, Ph.D., Head of Educational Programs.

For assistance with NEWTON contact a System Operator (help@newton.dep.anl.gov), or at Argonne's Educational Programs

NEWTON AND ASK A SCIENTIST
Educational Programs
Building 360
9700 S. Cass Ave.
Argonne, Illinois
60439-4845, USA
Update: June 2012
Weclome To Newton

Argonne National Laboratory