Multiple Choice
During the catabolism of glucose in glycolysis, at which stage is carbon dioxide produced?
33. The Organic Chemistry of Metabolic Pathways
Catabolism of Carbohydrates: Glycolysis
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Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
In the catabolism of glucose during glycolysis, where is most of the water produced?
A
During the electron transport chain
B
During the conversion of glucose to pyruvate
C
During the fermentation process
D
During the Krebs cycle
Verified step by step guidance1
Understand that glycolysis is the process of breaking down glucose into pyruvate, which occurs in the cytoplasm and does not produce significant amounts of water.
Recognize that the Krebs cycle, also known as the citric acid cycle, occurs in the mitochondria and involves the oxidation of acetyl-CoA to carbon dioxide, with minimal water production.
Identify that fermentation is an anaerobic process that converts pyruvate into lactate or ethanol, depending on the organism, and does not produce water.
Focus on the electron transport chain, which is the final stage of cellular respiration occurring in the inner mitochondrial membrane, where electrons are transferred through a series of complexes.
Realize that during the electron transport chain, oxygen acts as the final electron acceptor and combines with protons (H⁺) to form water, making it the stage where most water is produced in the catabolism of glucose.
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