Oxidative Phosphorylation Quiz
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Questions and Answers

Where is the intermembrane space located?

  • In the matrix
  • On the N side
  • On the P side (correct)
  • In the cytoplasm

What happens to the energy released during the hydrogen and oxygen reaction in organisms?

  • It is used to form water
  • It is released explosively
  • It is used to pump protons
  • It is stored in high-energy bonds (correct)

What are NADH and FADH2?

  • Reducing agents
  • High-energy bonds
  • Oxidizing agents
  • Electron transporters (correct)

What is the purpose of the electron transport chain (ETC)?

<p>To oxidize NADH and FADH2 (D)</p> Signup and view all the answers

What is oxidative phosphorylation?

<p>The phosphorylation of ADP to form ATP (B)</p> Signup and view all the answers

What are the energy conversion processes that occur in the membrane during oxidative phosphorylation?

<p>Electron transfer, proton pumping, and the flow of protons through ATP synthase (D)</p> Signup and view all the answers

What happens to the high-energy electrons lost from NADH?

<p>They combine with oxygen to form water (B)</p> Signup and view all the answers

What is the net equation for the electron-transfer process in oxidative phosphorylation?

<p>NADH + 1/2O2 + H+ → NAD+ + H2O (D)</p> Signup and view all the answers

What is the role of ATP synthase in oxidative phosphorylation?

<p>To convert ADP to ATP (C)</p> Signup and view all the answers

What is the source of molecular oxygen in oxidative phosphorylation?

<p>External source (D)</p> Signup and view all the answers

What is the purpose of the ETC in oxidative phosphorylation?

<p>To generate a proton gradient (D)</p> Signup and view all the answers

What is the final product of the electron-transfer process in oxidative phosphorylation?

<p>Water (C)</p> Signup and view all the answers

Where is the intermembrane space located?

<p>On the P side (C)</p> Signup and view all the answers

What happens to the energy released during the hydrogen and oxygen reaction in organisms?

<p>It is stored in high-energy bonds (A)</p> Signup and view all the answers

What are NADH and FADH2?

<p>Electron transporters (A)</p> Signup and view all the answers

What is the purpose of the electron transport chain (ETC)?

<p>To oxidize NADH and FADH2 (C)</p> Signup and view all the answers

What is oxidative phosphorylation?

<p>The phosphorylation of ADP to form ATP (D)</p> Signup and view all the answers

What are the energy conversion processes that occur in the membrane during oxidative phosphorylation?

<p>Electron transfer, proton pumping, and the flow of protons through ATP synthase (B)</p> Signup and view all the answers

What happens to the high-energy electrons lost from NADH?

<p>They combine with oxygen to form water (D)</p> Signup and view all the answers

What is the net equation for the electron-transfer process in oxidative phosphorylation?

<p>NADH + 1/2O2 + H+ → NAD+ + H2O (D)</p> Signup and view all the answers

What is the role of ATP synthase in oxidative phosphorylation?

<p>To convert ADP to ATP (A)</p> Signup and view all the answers

What is the source of molecular oxygen in oxidative phosphorylation?

<p>External source (D)</p> Signup and view all the answers

What is the purpose of the ETC in oxidative phosphorylation?

<p>To generate a proton gradient (D)</p> Signup and view all the answers

What is the final product of the electron-transfer process in oxidative phosphorylation?

<p>Water (A)</p> Signup and view all the answers

Where is the intermembrane space located?

<p>At the P side (D)</p> Signup and view all the answers

What happens when hydrogen and oxygen react?

<p>Energy is released explosively (B)</p> Signup and view all the answers

How do organisms store the energy released from the hydrogen and oxygen reaction?

<p>In high-energy bonds (C)</p> Signup and view all the answers

What are NADH and FADH2 oxidized into?

<p>NAD+ and FAD (B)</p> Signup and view all the answers

What happens to the electrons in the ETC?

<p>They are used to form ATP (A)</p> Signup and view all the answers

What is the net equation for the electron-transfer process in oxidative phosphorylation?

<p>NADH + 1/2O2 + H+ → NAD+ + H2O (A)</p> Signup and view all the answers

What are the energy conversion processes in the membrane?

<p>Electron transfer, proton pumping, and the flow of protons through ATP synthase (C)</p> Signup and view all the answers

What happens to the high-energy electrons lost from NADH?

<p>They combine with molecular oxygen and H+ to form water (B)</p> Signup and view all the answers

What is the role of ATP synthase in oxidative phosphorylation?

<p>To convert ADP to ATP (A)</p> Signup and view all the answers

What is the function of NADH and FADH2 in the ETC?

<p>To store high-energy electrons (B)</p> Signup and view all the answers

What is the location of the matrix?

<p>Inside the mitochondria (B)</p> Signup and view all the answers

What is the purpose of oxidative phosphorylation?

<p>To convert the energy released by the oxidation of NADH to NAD+ into ATP (D)</p> Signup and view all the answers

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