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3 Αυγ 2020 · In the presence of ample O 2 and ADP and P i in the mitochondria, the increase in ADP concentration with exercise is believed to activate the respiratory chain to produce ATP 54.
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19 Ιουλ 2024 · ATP is made of a nitrogen base (adenine) and a sugar molecule (ribose), which create adenosine, plus three phosphate molecules. If adenosine only has one phosphate molecule, it’s called adenosine monophosphate (AMP). If it has two phosphates, it’s called adenosine diphosphate (ADP).
Overview of oxidative phosphorylation. The electron transport chain forms a proton gradient across the inner mitochondrial membrane, which drives the synthesis of ATP via chemiosmosis.
24 Οκτ 2024 · An anaerobic energy system in which the generation of ATP is coupled with the exergonic (energy-releasing) breakdown of phosphocreatine stored in muscle cells. The breakdown frees inorganic phosphate, which then combines with ADP to form ATP.
13 Φεβ 2023 · The process of ATP hydrolysis to ADP is energetically favorable, yielding Gibbs-free energy of -7.3 cal/mol. ATP must continuously undergo replenishment to fuel the ever-working cell. The routine intracellular concentration of ATP is 1 to 10 uM. [2]
ATP is made up of a nucleotide, a five-carbon sugar, and three phosphate groups. The bonds that connect the phosphates (phosphoanhydride bonds) have high-energy content. The energy released from the hydrolysis of ATP into ADP + P i is used to perform cellular work.
15 Ιαν 2021 · Hydrogen ions flow down their electrochemical gradient back into the matrix through ATP synthase channels which capture their energy to convert ADP to ATP. Notice that the process regenerates NAD\(^+\), supplying the electron acceptor molecule needed in glycolysis.
