AP BIOLOGY

Detailed explanation-1: -In this process, one glucose molecule is converted into two molecules of pyruvic acid. It produces two molecules of pyruvate, ATP, NADH and water. This process takes place in the cytosol of the cell. Substrate-level phosphorylation is the type of phosphorylation that occurs in glycolysis.

Detailed explanation-2: -In the first step of glycolysis, the glucose ring is phosphorylated. Phosphorylation is the process of adding a phosphate group to a molecule derived from ATP. As a result, at this point in glycolysis, 1 molecule of ATP has been consumed.

Detailed explanation-3: -The first half of glycolysis uses two ATP molecules in the phosphorylation of glucose, which is then split into two three-carbon molecules.

Detailed explanation-4: -The first step is phosphorylation of glucose (adding a phosphate molecule to glucose). Phosphate from one molecule of ATP is transferred to glucose (by an enzyme called hexokinase). The newly phosphorylated glucose is called glucose 6-phosphate (G6P). Having lost one of its three phosphates, the ATP becomes ADP.