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Cell Energy: ATP and ADP Functionality for Cellular Processes

Learn about ATP, the energy-storing molecule in cells, and ADP, its derivative. Discover how cells recycle energy, the role of proteins in releasing energy, and the various functions cells use energy for. Explore making new molecules, enzymes, maintaining homeostasis, and waste elimination.

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Cell Energy: ATP and ADP Functionality for Cellular Processes

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  1. Chapter 9 Section 1 • ATP in a Molecule

  2. Cell Energy • Energy is essential to life • What are some things that you do that require energy? • What are some things that cells do that require energy?

  3. ATP • Adenosine triphosphate- energy storing molecule in cells composed of an adenosine molecule, a ribose sugar, and 3 phosphate groups; energy is stored in the molecule’s chemical bonds and can be used quickly by the cell

  4. ADP • Adenosine diphosphate- molecule formed from the breaking off of a phosphate group for ATP; results in large release of energy that is used for biological reactions. • Phosphate- charged, requires energy to bond to other phosphates • Releases energy when released

  5. Cell Recycles Energy • Formation/Breaking bonds relieves the cell from having to store all the ATP it needs for energy • Some functions can use ADP

  6. How does this work? • What catches the energy? • What is the energy used for? • What makes the ATP release the phosphate?

  7. Proteins make it happen • Proteins catch the energy • binding sites where the ATP binds • Breaks the bond • Energy Releases • The cell can make new proteins, or transport molecules in and out of the cell

  8. What cells use the Energy for • Making New Molecules • Making Enzymes • Homeostasis • Eliminate Waste

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