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Questions and Answers
Questions and Answers
What is the main event of cellular respiration often referred to as?
What is the main event of cellular respiration often referred to as?
The electron transport chain is often referred to as the main event of cellular respiration.
Where is the electron transport chain located?
Where is the electron transport chain located?
The electron transport chain is located in the inner membrane of the mitochondrion.
What is the role of NADH in the electron transport chain?
What is the role of NADH in the electron transport chain?
NADH delivers its electrons to the first protein in the electron transport chain.
What is the final destination of the electrons in the electron transport chain?
What is the final destination of the electrons in the electron transport chain?
What is the function of ATP synthase?
What is the function of ATP synthase?
What is the total range of ATP molecules produced for every glucose that enters respiration?
What is the total range of ATP molecules produced for every glucose that enters respiration?
What happens if the electron transport chain stops?
What happens if the electron transport chain stops?
Why is oxygen essential in the electron transport chain?
Why is oxygen essential in the electron transport chain?
What is the analogy used to describe the mechanism of ATP synthase?
What is the analogy used to describe the mechanism of ATP synthase?
Where are the high concentration of hydrogen ions built up, and how is it used to make ATP?
Where are the high concentration of hydrogen ions built up, and how is it used to make ATP?
Questions and Answers
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Flashcards
Flashcards
Main event of cellular respiration?
Main event of cellular respiration?
The electron transport chain is the main event.
Location of the electron transport chain?
Location of the electron transport chain?
Located in the inner membrane of the mitochondrion.
Role of NADH?
Role of NADH?
NADH delivers electrons to the first protein, initiating the chain.
Final electron destination?
Final electron destination?
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Function of ATP synthase?
Function of ATP synthase?
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ATP produced per glucose?
ATP produced per glucose?
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If ETC stops?
If ETC stops?
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Why is oxygen essential?
Why is oxygen essential?
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Analogy for ATP synthase?
Analogy for ATP synthase?
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High H+ concentration location?
High H+ concentration location?
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Flashcards
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Study Notes
Study Notes
Cellular Respiration
- The main event of cellular respiration is often referred to as oxidative phosphorylation.
Electron Transport Chain
- The electron transport chain is located in the mitochondrial inner membrane.
- NADH plays a crucial role in the electron transport chain by donating electrons, which are then passed through a series of protein complexes, generating a proton gradient.
- The final destination of the electrons in the electron transport chain is oxygen, which combines with protons to form water.
ATP Synthesis
- The function of ATP synthase is to generate ATP from ADP and Pi using the energy from the proton gradient.
- The ATP synthase mechanism is often described as a rotating wheel, where protons flow through the enzyme, driving the production of ATP.
- A total of 32-34 ATP molecules are produced for every glucose molecule that enters cellular respiration.
Importance of Oxygen
- If the electron transport chain stops, ATP production also stops, and cells would quickly shut down.
- Oxygen is essential in the electron transport chain because it is the final electron acceptor, allowing the transport chain to function.
- A high concentration of hydrogen ions is built up in the mitochondrial intermembrane space, which is used to drive the production of ATP through the action of ATP synthase.
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