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Questions and Answers
What is the primary role of NADH in cellular respiration?
What is the primary role of NADH in cellular respiration?
Which process of cellular respiration occurs outside the mitochondria?
Which process of cellular respiration occurs outside the mitochondria?
What is produced as a byproduct in the Krebs cycle?
What is produced as a byproduct in the Krebs cycle?
Which of the following statements about the Electron Transport Chain is true?
Which of the following statements about the Electron Transport Chain is true?
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Which molecule serves as the primary energy currency of the cell?
Which molecule serves as the primary energy currency of the cell?
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Which of the following occurs during glycolysis?
Which of the following occurs during glycolysis?
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What is the function of mitochondria in cellular respiration?
What is the function of mitochondria in cellular respiration?
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What is the main role of oxygen in the Electron Transport Chain?
What is the main role of oxygen in the Electron Transport Chain?
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Study Notes
Cellular Respiration
- Cellular respiration is the process by which organisms obtain energy (ATP) through the breakdown of glucose (C6H12O6)
- Glucose stores potential energy
- The process involves three main pathways: Glycolysis, Krebs Cycle, and the Electron Transport Chain (ETC)
Glycolysis
- Occurs in the cytoplasm
- Anaerobic process (does not require oxygen)
- Glucose is broken down into pyruvate
- Produces a small amount of ATP
Krebs Cycle (Citric Acid Cycle)
- Occurs in the mitochondria
- Pyruvate is further broken down to release CO2
- Produces more ATP
- Releases energy in the form of NADH and FADH2
Electron Transport Chain (ETC)
- Occurs in the inner mitochondrial membrane
- NADH and FADH2 donate electrons to the electron transport chain
- These electrons are passed down a series of protein complexes
- Energy from the electron transfer pumps hydrogen ions (H+) across the membrane, creating a gradient
- Oxygen is the final electron acceptor
- The hydrogen ion gradient drives ATP synthesis
- Produces the majority of ATP in cellular respiration
Summary
- The three main processes are Glycolysis, Krebs Cycle, and the Electron Transport Chain
- Glycolysis occurs in the cytoplasm
- Krebs Cycle happens in the mitochondria
- The Electron Transport Chain is located in the inner mitochondrial membrane
- The mitochondria is the powerhouse of the cell due to its role in producing energy
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Description
Test your knowledge on the process of cellular respiration. This quiz covers the key pathways such as Glycolysis, Krebs Cycle, and Electron Transport Chain, as well as the overall importance of glucose in energy production. Dive in to see how well you understand these essential biological processes!
