ATP <ul><li>ATP powers cellular work </li></ul><ul><li>A cell does three main kinds of work: </li></ul><ul><ul><li>Mechani...
<ul><li>ATP  ( adenosine triphosphate ) is a type of nucleotide consisting of the nitrogenous base adenine, the sugar ribo...
<ul><li>The bonds between phosphate groups can be broken by hydrolysis. </li></ul><ul><li>“ Hydro” means water, “lysis” me...
So what? <ul><li>Energy is stored in these bonds. </li></ul><ul><li>So? </li></ul><ul><li>The breaking of the chemical bon...
Figure 8.6 Coupling of Reactions Exergonic and endergonic reactions are coupled.
What Is the Role of ATP in Biochemical Energetics? <ul><li>Bioluminescence  is an endergonic reaction driven by ATP hydrol...
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Atp

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Atp

  1. 1. ATP <ul><li>ATP powers cellular work </li></ul><ul><li>A cell does three main kinds of work: </li></ul><ul><ul><li>Mechanical work, beating of cilia, contraction of muscle cells, and movement of chromosomes </li></ul></ul><ul><ul><li>Transport work, pumping substances across membranes against the direction of spontaneous movement </li></ul></ul><ul><ul><li>Chemical work, driving endergonic reactions such as the synthesis of polymers from monomers </li></ul></ul>
  2. 2. <ul><li>ATP ( adenosine triphosphate ) is a type of nucleotide consisting of the nitrogenous base adenine, the sugar ribose, and a chain of three phosphate groups. </li></ul>
  3. 3. <ul><li>The bonds between phosphate groups can be broken by hydrolysis. </li></ul><ul><li>“ Hydro” means water, “lysis” means to split apart, so hydrolysis means to split using water. </li></ul>
  4. 4. So what? <ul><li>Energy is stored in these bonds. </li></ul><ul><li>So? </li></ul><ul><li>The breaking of the chemical bond releases the energy </li></ul><ul><li>ATP + H 2 O -> ADP + P + ENERGY </li></ul>
  5. 5. Figure 8.6 Coupling of Reactions Exergonic and endergonic reactions are coupled.
  6. 6. What Is the Role of ATP in Biochemical Energetics? <ul><li>Bioluminescence is an endergonic reaction driven by ATP hydrolysis: </li></ul>

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