Which process leads to the formation of ATP from ADP and inorganic phosphate?

Which process leads to the formation of ATP from ADP and inorganic phosphate?

• A. Glycolysis
• B. Oxidation
• C. Phosphorylation
• D. Fermentation

Answer: (C)

The correct process that leads to the formation of ATP from ADP and inorganic phosphate is phosphorylation. This process specifically refers to the addition of a phosphate group to ADP, resulting in ATP. Phosphorylation occurs in various metabolic pathways, primarily during cellular respiration and photosynthesis. In glycolysis, ATP is produced through substrate-level phosphorylation, where a phosphate group is directly transferred from a donor molecule to ADP. However, glycolysis itself is not solely about the synthesis of ATP; it involves multiple reactions that break down glucose. Oxidation involves the loss of electrons and can be part of energy production but does not directly refer to the synthesis of ATP. Rather, in cellular respiration, it often leads to a flow of electrons through the electron transport chain, which ultimately helps in ATP generation through oxidative phosphorylation. Fermentation is an anaerobic process that generates ATP but occurs without oxygen and does not specifically describe the process of adding a phosphate group to ADP. Thus, phosphorylation is central to the immediate generation of ATP from ADP and inorganic phosphate, making it the most precise answer to the question.

The correct process that leads to the formation of ATP from ADP and inorganic phosphate is phosphorylation. This process specifically refers to the addition of a phosphate group to ADP, resulting in ATP. Phosphorylation occurs in various metabolic pathways, primarily during cellular respiration and photosynthesis.

In glycolysis, ATP is produced through substrate-level phosphorylation, where a phosphate group is directly transferred from a donor molecule to ADP. However, glycolysis itself is not solely about the synthesis of ATP; it involves multiple reactions that break down glucose.

Oxidation involves the loss of electrons and can be part of energy production but does not directly refer to the synthesis of ATP. Rather, in cellular respiration, it often leads to a flow of electrons through the electron transport chain, which ultimately helps in ATP generation through oxidative phosphorylation.

Fermentation is an anaerobic process that generates ATP but occurs without oxygen and does not specifically describe the process of adding a phosphate group to ADP.

Thus, phosphorylation is central to the immediate generation of ATP from ADP and inorganic phosphate, making it the most precise answer to the question.