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Questions and Answers
What is the molecule that initiates the Citric acid cycle in the mitochondria?
Where does the Citric acid cycle take place?
How many ATP molecules are produced for every acetyl-CoA molecule that enters the Citric acid cycle?
What are the low-energy state sensors that activate the Citric acid cycle?
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Study Notes
Citric Acid Cycle Overview
- The molecule that initiates the Citric Acid Cycle is Acetyl-CoA, derived from carbohydrates, fats, and proteins.
- The Citric Acid Cycle occurs in the mitochondria, specifically in the mitochondrial matrix, which is the innermost compartment of the mitochondria.
Energy Production
- For each Acetyl-CoA molecule that enters the Citric Acid Cycle, a net yield of 10 ATP molecules is produced through the cycle and associated electron transport chain processes.
Regulatory Mechanisms
- Low-energy state sensors that activate the Citric Acid Cycle include ADP (adenosine diphosphate), AMP (adenosine monophosphate), and calcium ions. These signals indicate a need for energy production, stimulating the cycle's activity.
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Description
Test your knowledge of cellular respiration with this quiz on the citric acid cycle. Explore the multistep process of converting acetyl-CoA from various nutrients into CO2 and NADH in the mitochondria.
