The term metabolism is best defined as ________.

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BlackTom AI · Accepted Answer

When we tackle the concept of metabolism, we need to focus on its broad biochemical scope rather than narrow, task-specific ideas.
Option 1: 'the length of time it takes to digest and absorb fats.' This is mixing up digestion time with the broader metabolic network. Digestion is just one step in nutrient processing and does not define metabolism as a whole.
Option 2: 'the sum of all biochemical reactions in the body.' This captures the comprehensive nature of metabolism, encompassing all enzymatic pathways, energy production, synthesis, and breakdown processes that keep organisms alive.
Option 3: 'a measure of carbohydrate utilization, typically involving measurement of calories.' While carbohydrate use contributes to metabolic activity, metabolism is not limited to carbohydrates or to calorie counting; it includes fats, proteins, hormones, and all other biochemical reactions.
Option 4: 'the number of calories it takes to keep from shivering on a cold day.' This is a very narrow, situational estimate and does not reflect the full scope of metabolic processes that occur irrespective of external factors like ambient temperature.
In summary, the most accurate description among the options is the broad definition that frames metabolism as the entirety of biochemical reactions in the body, not just a single process or context.

The term metabolism is best defined as ________.

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