The overall goal of glycolysis, Krebs cycle and the electron transport system is the formation of

Options

A. ATP in small stepwise units
B. ATP in one large oxidation reaction
C. Sugars
D. Nucleic acids

Answer

A

Explanation

Glycolysis, the Kreb’s cycle, and the electron transport system all yield ATP which is the main energy currency of the cell. During oxidation of respiratory substrates within a cell, the energy contained in them is released in a series of show stepwise reactions controlled by respiratory enzymes.