Which of These Equations Is/are Endergonic? Equation 1: ATP

question 130

Multiple Choice

Which of these equations is/are endergonic? Equation 1: ATP + H₂O  ADP + P_i
G₁ = -7 kcal/mol
Equation 2: phosphoenolpyruvate + H₂O  pyruvate + P_i
G₂ = -14.8 kcal/mol
Equation 3: glucose + P_i  glucose-6-phosphate + H₂O
G₃ = +3.3 kcal/mol
Equation 4: ADP + P_i  ATP + H₂O
G₃ = +7 kcal/mol

• A)equations 1 and 2
• B)equations 2 and 3
• C)equations 3 and 4
• D)equations 1 and 4
• E)equations 1 and 3

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Definitions:

Mechanism

The detailed step-by-step description of how a chemical reaction occurs, including the breaking and formation of bonds.

Reaction

A process in which one or more substances (the reactants) are converted to one or more different substances (the products).

Terpene

A class of natural organic compounds, typically derived from plants, with a structure based on isoprene units.

Monocyclic

Pertains to chemical compounds that contain only one cyclic structure within their molecular framework.