Connecting Concepts

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Use the nutritional information below to answer questions 33–35.

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33. Apply Concepts On average, how many Calories are there in 1 gram of a lipid, carbohydrate, and protein? Why the differences?

34. Calculate How many grams of protein must there be in order to account for the number of Calories per serving indicated?

35. Calculate Look at the percent daily value column on the food label. The percent daily value represents the proportion of a typical day's Calories that, on average, should be contributed from the category listed. For example, 31 g of carbohydrates is approximately 10 percent of a daily value. So, a typical person's daily diet should contain about 310 g of carbohydrates. How many Calories does this represent? What percentage of a typical 2000-Calories-per-day diet should therefore come from carbohydrates?

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36. Explanation Expand the analogy of deposits and withdrawals of money that was used in the chapter to write a short paragraph that explains cellular respiration. (Hint: Think about what “inputs” or deposits are required and what “outputs” or returns are produced at each step.)

37. Assess the Draw a sketch that shows respiration (breathing) at the organismal, or whole animal, level. Draw another sketch that shows the overall process of cellular respiration. How do your sketches show breathing and cellular respiration as related processes?

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