Accurate statements Inaccurate statements Answer Bank $H^+$ ions move through a channel formed by ATP synthase releasing energy to form ATP. The pH in the mitochondrial matrix is lower than the pH in the intermembrane space. Hydrogen ions cannot freely pass through the inner mitochondrial membrane. Energy is generated as a result of the difference in hydrogen ion concentration between the mitochondrial matrix and the cytoplasm.
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1. "$H^+$ ions move through a channel formed by ATP synthase releasing energy to form ATP." This statement is inaccurate. $H^+$ ions move through a channel formed by ATP synthase, and this movement *releases* energy that is used to *form* ATP. The statement Show more…
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Adi S.
The given statements concern the relationship between mitochondrial hydrogen ion concentration and energy storage as ATP during oxidative phosphorylation. Classify each statement as either accurate or inaccurate. a. Hydrogen ions cannot freely pass through the inner mitochondrial membrane. b. H+ concentration is lower in the mitochondrial matrix than in the intermembrane space. c. Energy is generated as a result of the difference in hydrogen ion concentration between the mitochondrial matrix and the cytoplasm. d. ATP synthase uses energy from ATP to move H + into the mitochondrial matrix.
Identify the statements that accurately describe how hydrogen ion concentration relates to energy production in oxidative phosphorylation: Hydrogen ion concentration is higher in the intermembrane space than in the mitochondrial matrix. Hydrogen ions enter the mitochondrial matrix via facilitated diffusion. Oxidative phosphorylation relies on the hydrogen ion concentration gradient generated and maintained by the electron transport chain. The pH in the intermembrane space is higher than the pH in the mitochondrial matrix. Energy is generated as a result of the difference in hydrogen ion concentration between the mitochondrial matrix and the cytoplasm.
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