Life: The Science of Biology 11th Edition

Published by W. H. Freeman
ISBN 10: 1-31901-016-4
ISBN 13: 978-1-31901-016-4

Chapter 8 - Energy, Enzymes, and Metabolism - 8.2 - ATP Plays a Key Role in Biochemical Energetics - 8.2 Recap - Learning Outcomes - Page 157: 1

Answer

ATP consists of an adenosine molecule bonded to three phosphate groups. During cellular respiration, chemical energy in food is converted into chemical energy stored in molecules of ATP. This occurs when a molecule of ADP uses the energy provided during cellular respiration to bond with a third phosphate group, forming ATP. As a result, the energy from cellular respiration resides in the bond between the 2nd and 3rd phosphate groups in ATP.

Work Step by Step

ATP consists of an adenosine molecule bonded to three phosphate groups. During cellular respiration, chemical energy in food is converted into chemical energy stored in molecules of ATP. This occurs when a molecule of ADP uses the energy provided during cellular respiration to bond with a third phosphate group, forming ATP. As a result, the energy from cellular respiration resides in the bond between the 2nd and 3rd phosphate groups in ATP.
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