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In: Biology

Summarize the 4 phases of glucose breakdown

There are 4 phases of glucose breakdown. Summarize the major events (include inputs/outputs/location) of each.

Solutions

Expert Solution

Glucose is a six-carbon sugar that can be ingested or infused directly into the body, but is more often a by-product of complex carbohydrate, protein or fat metabolism. Glucose can be used to synthesize glycogen and other storage fuels or broken down further to provide energy for metabolic processes, a series of reactions collectively termed cellular respiration. The stages of glucose breakdown can be divided into four distinct phases.


During glycolysis, glucose ultimately breaks down into pyruvate and energy and 2 ATP is made in the process. If there is no oxygen (Anaerobic condition), then fermentation takes place wich happens in the cytoplasm and only 2 ATP molecules are made. If there was oxygen (aerobic condition), The citric acid (kerb) cycle will take place which finishes the sugar-breaking job started in glycolysis and fuels the production of ATP in the process by making 36 to 38 ATP molecules.

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