No ADP is not an enzyme
The enzyme you are referring to is ATP synthase. It is responsible for producing ATP by phosphorylating ADP using the proton gradient across the inner mitochondrial membrane.
ATP synthase enzyme spins in the inner membrane of mitochondria to provide energy for adding a phosphate group to ADP, converting it to ATP through oxidative phosphorylation. The spinning is driven by the flow of protons through the enzyme complex.
The enzyme is ATP synthase (sometimes referred to as "ATP synthetase").It catalyzes the synthesis of ATP from ADP and free inorganic phosphate. It is a remarkable enzyme, part of which spins round. In fact, ATP synthase has been called a molecular machine.To see an image, use the link below.
ADP is made by ATP when one of three peptide bonds of ATP are broken down.
The enzyme that converts adenosine diphosphate back into adenosine triphosphate is called 'ATP synthase'.
The enzyme that adds a phosphate group to ADP to form ATP is ATP synthase. This process occurs during oxidative phosphorylation in the inner mitochondrial membrane.
The Electron Transport System
The enzyme you are referring to is ATP synthase. It is responsible for producing ATP by phosphorylating ADP using the proton gradient across the inner mitochondrial membrane.
When ADP is converted to AMP, the releasing of a phosphate group occurs. This reaction is catalyzed by the enzyme adenylate kinase and results in the formation of ATP.
The equation for reforming ATP from ADP and inorganic phosphate is: ADP + Pi + energy → ATP. This process is catalyzed by the enzyme ATP synthase during cellular respiration.
ATP is regenerated from ADP and inorganic phosphate by an enzyme controlled process called phosphorylation.
Enzyme ATPase is involved. It binds ADP and Pi
Isocitrate Dehydrogenase transforms isocitrate into alpha-ketoglutarate and is an important step in the citric acid cycle. This enzyme utilises NAD+ as a co-enzyme, NAD+ also acts as an allosteric inhibitor increasing the enzymes affinity for substrates. High ADP, High turn over of this enzyme meaning more citric acid cyle. Which in turn results in the high energy carriers that are donate electrons to the electron transport chain involved in pumping protons in the mitochondria. Also Pyruvate dehydrogenase (pyruvate --> acety CoA) is an irreversible step which links glycolosis to the citric acid cycle, this too has its activity increased by ADP
The breakdown of creatine phosphate is regulated by the enzyme creatine kinase. This enzyme catalyzes the transfer of a phosphate group from creatine phosphate to ADP, forming ATP. The reaction is reversible, and the activity of creatine kinase helps to maintain energy balance in cells.
ATP synthase enzyme spins in the inner membrane of mitochondria to provide energy for adding a phosphate group to ADP, converting it to ATP through oxidative phosphorylation. The spinning is driven by the flow of protons through the enzyme complex.
The enzyme creatine kinase catalyzes the reaction that creates creatine phosphate. This reaction involves transferring a phosphate group from ATP to creatine, forming creatine phosphate and ADP. Creatine phosphate serves as a short-term energy reservoir in muscle cells.
The process by which ADP is phosphorylated to form ATP is known as oxidative phosphorylation. This occurs in the mitochondria of cells and involves the electron transport chain and ATP synthase enzyme.