Nusc 1165 Exam 3 Comprehensive Assessment 2026 Full Questions Correct Solutions

NUSC 1165 EXAM 3 COMPREHENSIVE
ASSESSMENT 2026 FULL QUESTIONS
CORRECT SOLUTIONS

◉ Energy In: How is energy determined in food? (cont.).
Answer: From prior research experiments, feeding studies were
done to measure the amount of energy in foods. The amount of
energy that is not available to the body such as those lost in the
urine or feces were accounted for. This is how the kilocalorie values
were obtained for the energy-yielding nutrients and alcohol.
•Carbohydrates: 4 kcals/gram
•Lipids: 9 kcals/gram
•Protein: 4 kcals/gram
•Alcohol: 7 kcals/gram
•
These values are then used to calculate the convert grams of
carbohydrate, fat, protein, and alcohol to kilocalories.
All together, the kilocalories of carbohydrate, fat, protein, and
alcohol are used calculate the total kilocalories in foods and
beverages, also known as total energy.
•Some dishes may contain alcohol as an ingredient in it, such as beef
pot roast, a dish Dr. Chea made last night for dinner. Here is the
recipe if anyone is interested:

,Total Energy = (kcal carbs) + (kcal fat) + (kcal protein) + (kcal
alcohol)
(kcal)


◉ Energy in: example of calculating energy from food.
Answer: This slide presents information for calculating kilocalories
of protein, carbohydrate, and fat, and then calculating the total
energy.


In this example, you would have to calculate kilocalories of each
energy-yielding nutrient for the half-cup (100 grams) serving of
macaroni and cheese. This is broken down into four steps:




Step 1 - Protein:
•Multiply the grams of protein by the amount of energy provided by
protein, which is 4 kcals/g.
•In this case, the equation is set up as 8 grams protein x 4 kcals = 32
kcals protein
g


Step 2 - Carbohydrate:

,•Multiply the grams of carbohydrate by the amount of energy
provided by carbohydrate, which is 4 kcals/g.
•Here, we have 20 grams of carbohydrate x 4 kcals = 80 kcals of
carbohydrate
g


Step 3 - Fat:
•Multiply the grams of fat by the amount of energy provided by fat,
which is 9 kcals/g.
•The equation is set up as 11 grams of fat x 9 kcals = 99 kilocalories
of fat
g


Total Energy Calculation:
•Add up the kilocalories of protein, kilocalories of carbohydrate, and
kilocalories of fat to determine total kilocalories provided in the
food.
•Total Energy = 32 kcals protein + 80 kcals carbohydrate + 99 kcals
fat = 211 kcals


◉ Energy In: Energy Information Sources.
Answer: Information about caloric intake can be found from a
variety of sources. This includes the following:

, Nutrition Facts Labels:
•Nutrition Facts Labels provides information about the total calories
of the product per serving and also the calories from fat.
•It also lists the recommendations for total fat, saturated fat,
cholesterol, sodium, and total carbohydrate for a 2000 and 2500
calorie diet.
•Reminder: Calories and kilocalories are the same term. The capital
C in calories represents the word "kilo-"


◉ Energy In: Energy Information Sources (cont.).
Answer: Food Composition Tables are another source of caloric
information. It provides a summary and nutrient content of foods,
beverages, and supplements.
•One example is the U.S. Department of Agriculture (USDA) Food
Composition Database.
•It provides the calories per serving and per 100 grams of product


◉ Energy in: energy information sources.
Answer: •Databases from Dietary Analysis Software Programs
•Example: Cronometer


Databases from nutrient software programs or apps are another
source of energy information.