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A toxin produced by certain types of mold blocks the formation or oxaloacetate in the citric acid cycle. What would be a consequence of this? The citric acid cycle would stop accepting acetyl groups O All choices are possible O FADH2 would not be produced The citric acid cycle would stop functoning

A toxin produced by certain types of mold blocks the formation or oxaloacetate in the citric acid cycle. What would be a consequence of this? The citric acid cycle would stop accepting acetyl groups O All choices are possible O FADH2 would not be produced The citric acid cycle would stop functoning

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
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**Understanding the Impact of a Mold Toxin on the Citric Acid Cycle** A toxin produced by certain types of mold blocks the formation of oxaloacetate in the citric acid cycle. What would be a consequence of this? - The citric acid cycle would stop accepting acetyl groups - All choices are possible - FADH2 would not be produced - The citric acid cycle would stop functioning **Explanation:** The Citric Acid Cycle, also known as the Krebs Cycle or TCA (Tricarboxylic Acid) Cycle, is a crucial part of cellular respiration where cells generate energy. If a toxin from mold inhibits the formation of oxaloacetate: 1. **Oxaloacetate Availability:** The cycle cannot proceed without oxaloacetate as it combines with acetyl groups to form citrate. 2. **Energy Production Impact:** The prevention of FADH2 production means there would be less electron carriers for the electron transport chain, leading to decreased ATP (energy) production. 3. **Cycle Continuity:** The cycle could not continue its operations effectively and in severe cases, it might stop entirely. **Educational Takeaway:** Understanding the intermediate steps and reactants in the Citric Acid Cycle is essential to comprehend the broader impacts cellular damage, such as toxin interference, can have on an organism's metabolic processes. This underlines the importance of each component within the cycle and their collective role in sustaining life.
Transcribed Image Text:**Understanding the Impact of a Mold Toxin on the Citric Acid Cycle** A toxin produced by certain types of mold blocks the formation of oxaloacetate in the citric acid cycle. What would be a consequence of this? - The citric acid cycle would stop accepting acetyl groups - All choices are possible - FADH2 would not be produced - The citric acid cycle would stop functioning **Explanation:** The Citric Acid Cycle, also known as the Krebs Cycle or TCA (Tricarboxylic Acid) Cycle, is a crucial part of cellular respiration where cells generate energy. If a toxin from mold inhibits the formation of oxaloacetate: 1. **Oxaloacetate Availability:** The cycle cannot proceed without oxaloacetate as it combines with acetyl groups to form citrate. 2. **Energy Production Impact:** The prevention of FADH2 production means there would be less electron carriers for the electron transport chain, leading to decreased ATP (energy) production. 3. **Cycle Continuity:** The cycle could not continue its operations effectively and in severe cases, it might stop entirely. **Educational Takeaway:** Understanding the intermediate steps and reactants in the Citric Acid Cycle is essential to comprehend the broader impacts cellular damage, such as toxin interference, can have on an organism's metabolic processes. This underlines the importance of each component within the cycle and their collective role in sustaining life.
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