Question

How is ADP converted into ATP?

Answer 1

Adenosine diphosphate and adenosine triphosphate are chemical compounds found in all plant and animal cells and are known as nucleotides. The addition of a high-energy phosphate group to ADP converts it to ATP for energy storage.

Complete solution:
The conversion might happen in the cytoplasm, which is the fluid between the cell membrane and the nucleus, or in mitochondria, which are specific energy-producing structures. ADP to ATP can be represented as ADP + Pi + energy ATP, or adenosine diphosphate plus inorganic phosphate plus energy yields adenosine triphosphate in English. The covalent links between the phosphate groups in the ATP molecule, notably the pyrophosphate bond between the second and third phosphate groups, store energy.
Chemiosmotic phosphorylation is the process of converting ADP to ATP in the inner membranes of mitochondria. The electron transport chain, which is found on the walls of mitochondria, contains an estimated 10,000 enzyme chains that draw energy from food molecules or photosynthesis (the creation of complex organic compounds from carbon dioxide, water, and inorganic salts) in plants.

Note:
The Krebs cycle, a series of enzyme-catalyzed metabolic events, produces a buildup of negatively charged particles called electrons, which push positively charged hydrogen ions, or protons, past the inner mitochondrial membrane and into the inner chamber.