A 70.0-kg person had a quarter-pound cheeseburger, french fries, and a chocolate shake.
Item | Carbohydrate (g) | Fat (g) | Protein (g) |
Cheeseburger | 46 | 40. | 47 |
French fries | 47 | 16 | 4 |
Chocolate shake | 76 | 10 | 10 |
a. Using Table 1, calculate the total kilocalories for each food type in this meal (round off the kilocalories to the tens place).
b. Determine the total kilocalories for the meal (round off to the tens place).
c. Using Table 2, determine the number of hours of sleeping needed to burn off the kilocalories in this meal.
d. Using Table 2, determine the number of hours of running needed to burn off the kilocalories in this meal.
Table 1 Energy Values for the Three Food Types
Food Type | (kJ/g) | (kcal/g) |
Carbohydrate | 17 | 4 |
Fat | 38 | 9 |
Protein | 17 | 4 |
Table 2 Energy Expended by a 70.0-kg (154-lb) Adult
Activity | Energy (kJ/h) | Energy (kcal/h) |
Sleeping | 250 | 60 |
Sitting | 420 | 100 |
Walking | 840 | 200 |
Swimming | 2100 | 500 |
Running | 3100 | 750 |
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