BIOLOGY 11 – PRE-LAB EXERCISEName: Answer Key10Lab Day & Time:5Energy Requirements & Ideal Weight1.The “Calorie” on a food label is equivalent to what unit of energy? kcalHow many Calories are in 1 gram of carbohydrate? 4Calories per gramHow many Calories are in 1 gram of fat?9Calories per gramHow many Calories are in 1 gram of protein?4Calories per gramIf peanut butter is about 25% protein / 60% oil / 15% sugar, how many Calories are in 1 tablespoon (= 16g) of peanutbutter? [Round off to the nearest Calorie.](16g PB x 25% protein x 4 kcal/g = 16 kcal from protein) + (16g PB x 60% lipid x 9 kcal/g = 86.4 kcal from fat) +(16g PB x 15% sugar x 4 kcal/g = 9.6 kcal from carbohydrates) = 16 + 86.4 + 9.6 = 112 kcal total2.What are the three components of your daily energy requirement [expenditure]?basal metabolic rate; physical activity; specific dynamic action3.One pound of body fat is equivalent to how many kcal? 3500 kcalSo if you consume 200 more kcal per day than your body spends, how much weight would you gain in one month?
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