Which process results in the greatest amount of ATP?Group of answer choicesThe activity of the electron transport system in the Golgi apparatusThe activity of the electron transfer system in the mitochondriaKrebs cycleGlycolysis
Question
Which process results in the greatest amount of ATP?Group of answer choicesThe activity of the electron transport system in the Golgi apparatusThe activity of the electron transfer system in the mitochondriaKrebs cycleGlycolysis
Solution
The process that results in the greatest amount of ATP is the activity of the electron transfer system in the mitochondria.
Here's a step-by-step breakdown:
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Glycolysis: This process occurs in the cytoplasm and breaks down glucose into two molecules of pyruvate, producing a net gain of 2 ATP molecules.
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Krebs Cycle (also known as the Citric Acid Cycle): This process occurs in the mitochondria and further breaks down the pyruvate molecules, producing 2 ATP molecules per glucose molecule.
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Electron Transfer System in the Mitochondria (also known as the Electron Transport Chain): This process also occurs in the mitochondria. It uses the high-energy electrons produced in the Krebs cycle to pump hydrogen ions across the inner mitochondrial membrane. This creates a gradient that drives the synthesis of up to 34 ATP molecules per glucose molecule.
Therefore, the electron transfer system in the mitochondria produces the most ATP.
Similar Questions
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Which of the following statements about the electron transport chain and ATP production in the mitochondria is false?Group of answer choicesAny drug that inhibits the ATP synthase will also inhibit the flow of electrons in the ETC.For oxidative phosphorylation to occur, it is essential to have a membrane that is impermeable to protons except through specific proteins pores or protein complexesThe yield of ATP per mole of fuel depends on the type of molecule being catabolized.Some complexes of the respiratory chain pump protons into the matrix to create an electrochemical gradient.Exergonic electron transfer provides the energy for proton pumping.
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