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Multiple Choice
Which of the following statements about the role of ATP in cell metabolism is true?
A
ATP is primarily used to store genetic information in cells.
B
ATP is only used in photosynthesis and not in cellular respiration.
C
ATP is a structural component of cell membranes.
D
ATP stores energy in its phosphate bonds and releases it when these bonds are broken.
Verified step by step guidance
1
Understand the role of ATP in cell metabolism: ATP (adenosine triphosphate) is a molecule that carries energy within cells. It is not involved in storing genetic information, nor is it a structural component of cell membranes.
Recognize the processes ATP is involved in: ATP is used in various cellular processes, including cellular respiration and photosynthesis, but it is not limited to just one of these processes.
Identify the energy storage mechanism of ATP: ATP stores energy in the bonds between its phosphate groups. Specifically, the bond between the second and third phosphate group is known as a high-energy bond.
Learn how ATP releases energy: When the bond between the second and third phosphate group is broken, ATP is converted to ADP (adenosine diphosphate) and an inorganic phosphate, releasing energy that can be used by the cell.
Apply this knowledge to the given statements: The correct statement is that ATP stores energy in its phosphate bonds and releases it when these bonds are broken, which is a fundamental concept in understanding cell metabolism.