Cellular Respiration and Energy Production Quiz

Electron transport chain

NADH

Mitochondrion

<p>High-energy electrons from glycolysis and the Krebs cycle</p> Signup and view all the answers

<p>Oxygen</p> Signup and view all the answers

<p>Oxygen is the final electron acceptor of the electron transport chain. It accepts low energy electrons at the end of the chain, allowing the chain to continue functioning. Electron transport is considered aerobic because it requires oxygen for this final step in the chain.</p> Signup and view all the answers

<p>The high-energy electrons from glycolysis are passed to NAD+, forming NADH, while the NADH and FADH2 molecules generated by the Krebs cycle also contribute high-energy electrons. These electrons are then passed from carriers to the electron transport chain, which uses them to synthesize ATP from ADP.</p> Signup and view all the answers

<p>In eukaryotic cells, the electron transport chain is composed of a series of electron carriers located in the inner membrane of the mitochondrion. This is where the high-energy electrons from glycolysis and the Krebs cycle are utilized to synthesize ATP from ADP.</p> Signup and view all the answers

<p>High-energy electrons from glycolysis and the Krebs cycle are passed to NAD+ forming NADH, and then join the NADH and FADH2 molecules in the mitochondrion. These electrons are then passed through a series of electron carriers in the inner membrane of the mitochondrion and eventually used to synthesize ATP from ADP in the electron transport chain.</p> Signup and view all the answers

<p>The electron transport chain in eukaryotes is composed of a series of electron carriers located in the inner membrane of the mitochondrion. These carriers facilitate the transfer of high-energy electrons from glycolysis and the Krebs cycle to ultimately synthesize ATP from ADP.</p> Signup and view all the answers

<p>Oxygen is the final electron acceptor of the chain, making electron transport aerobic. It accepts low-energy electrons at the end of the chain. Without oxygen, the electron transport chain cannot function, leading to a halt in ATP synthesis and ultimately disrupting cellular respiration.</p> Signup and view all the answers