Podcast
Questions and Answers
What is the main input for glycolysis?
What is the main input for glycolysis?
- Acetyl CoA
- NADH
- Oxygen
- Glucose (correct)
The citric acid cycle occurs in the cytosol.
The citric acid cycle occurs in the cytosol.
False (B)
What is produced during oxidative phosphorylation?
What is produced during oxidative phosphorylation?
ATP and H2O
In pyruvate oxidation, pyruvate is converted into ______.
In pyruvate oxidation, pyruvate is converted into ______.
Match each process of cellular respiration with its primary output:
Match each process of cellular respiration with its primary output:
Flashcards
Glycolysis
Glycolysis
The first stage of cellular respiration where glucose is broken down into two pyruvate molecules, producing ATP and NADH. This process occurs in the cytosol and does not require oxygen.
Pyruvate Oxidation
Pyruvate Oxidation
The second stage of cellular respiration where each pyruvate molecule is oxidized to form acetyl CoA, producing NADH and COâ‚‚. This process occurs in the mitochondrial matrix.
Citric Acid Cycle
Citric Acid Cycle
The third stage of cellular respiration where acetyl CoA is further broken down, producing ATP, NADH, FADHâ‚‚, and COâ‚‚. This process occurs in the mitochondrial matrix.
Oxidative Phosphorylation
Oxidative Phosphorylation
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Pyruvate Transport
Pyruvate Transport
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Study Notes
Cellular Respiration
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Glycolysis: Glucose is broken down into 2 pyruvates, producing ATP and NADH. This occurs in the cytosol.
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Pyruvate Oxidation: Pyruvate is converted to Acetyl CoA, releasing CO2 and producing NADH. This occurs in the mitochondrial matrix.
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Citric Acid Cycle (Krebs Cycle): Acetyl CoA enters a cycle, releasing CO2, producing ATP, NADH, and FADH2. This also occurs in the mitochondrial matrix.
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Oxidative Phosphorylation: Electrons from NADH and FADH2 are passed along an electron transport chain, generating a proton gradient. This gradient drives ATP synthesis through ATP synthase. Oxygen is the final electron acceptor, forming water. This occurs across the inner mitochondrial membrane.
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Products: The overall process of cellular respiration produces ATP, water, and CO2. The amount of ATP generated varies depending on the efficiency of the different steps. NADH and FADH2 are crucial electron carriers, transferring energy from glycolysis and the citric acid cycle to oxidative phosphorylation. CO2 is a waste product released during glucose breakdown.
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