Cellular Respiration and Electron Transport Chain Quiz

High-energy electrons passing down the electron transport chain are used to transport hydrogen ions (H+) across the membrane. As the electrons pass down the chain, their energy is used to pump H+ ions across the membrane, creating a charge difference.

The inner mitochondrial membrane contains enzymes known as ATP synthases, which are responsible for the synthesis of ATP. The charge difference across the membrane forces H+ ions through channels in these enzymes, causing the ATP synthases to spin and produce ATP.

The charge difference across the membrane, with the intermembrane space becoming positively charged relative to the matrix, creates a biological 'battery' by storing potential energy that can power the synthesis of ATP.

<p>ATP synthases are responsible for producing ATP by grabbing an ADP molecule and attaching a phosphate group with each rotation, as H+ ions rush back across the membrane, causing the ATP synthases to spin and generate ATP.</p> Signup and view all the answers

<p>The H+ ions, which build up in the intermembrane space during electron transport, rush back across the membrane with enough force to spin the ATP synthase and generate enormous amounts of ATP.</p> Signup and view all the answers

<p>The inner mitochondrial membrane creates a charge difference by allowing high-energy electrons to pass down the electron transport chain, using their energy to transport hydrogen ions (H+) across the membrane. This leads to a buildup of H+ ions in the intermembrane space, making it positively charged relative to the matrix.</p> Signup and view all the answers

<p>ATP synthases, located in the inner mitochondrial membrane, use the charge difference across the membrane to force H+ ions through channels, causing the ATP synthases to spin. With each rotation, the enzyme grabs an ADP molecule and attaches a phosphate group, producing ATP.</p> Signup and view all the answers

<p>Enormous amounts of ATP are generated as the H+ ions rush back across the membrane with enough force to spin the ATP synthase and produce ATP. This process is driven by the charge difference across the membrane, which acts as a biological 'battery' that powers the synthesis of ATP.</p> Signup and view all the answers