<em>Complete question:</em>
<em>A. With an input of energy, ADP rearranges to become ATP. </em>
<em>B. Without any energy change, ADP rearranges to become ATP. </em>
<em>C. With an input of energy, ADP combines with a phosphate group to become ATP. </em>
<em>D. With a release of energy, ADP combines with a phosphate group to become ATP.</em>
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Explanation:
C. With an input of energy, ADP combines with a phosphate group to become ATP.
In respiration, energy is released when a phosphate group is removed from ATP; ATP is formed from the phosphorylation of ADP with an inorganic phosphate, Pi, which forms an unstable, high energy phosphate bond.
ADP + inorganic phosphate (Pi) + energy → ATP
Further Explanation:
In all eukaryotic cells mitochondria are small cellular organelles bound by membranes, these make most of the chemical energy required for powering the biochemical reactions within the cell. This chemical energy is stored within the molecule ATP which is produced. Respiration in the mitochondria utilizes oxygen for the production of ATP in the Krebs’ or Citric acid cycle via the oxidization of pyruvate through the process of glycolysis in the cytoplasm).
This forms a gradient where there is a differential in the number of protons on either side of the membrane the protons flow or re-enter the matrix through the enzyme ATP synthase, which makes the energy storage molecules of ATP from the reduction of ADP. At the end of the electron transport, three molecules of oxygen accept electrons and protons to form molecules of water- a process called chemiosmosis.
Learn more about cellular life at brainly.com/question/11259903
Learn more about cellular respiration at brainly.com/question/11203046
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