NUT 10V Week 3 Exam Questions And Answers
100% Solved
Where is the potential energy in foods? - ANSWER
How is this energy released and how can it be measured? - ANSWER -The energy is released
through heat
-It is measured using a calorimeter
What is the unit of measure for energy in the macronutrients? - ANSWER -Kilocalorie
-Kcal
-Calorie
Which of the following is the true about the definition of "energy"? - ANSWER -"Energy" can
refer to doing metabolic work
-"Energy" is the ability to do work
-"Energy" can refer to doing physical work
What is a calorie? - ANSWER A measure of heat energy
A bomb calorimeter is used to calculate the number of calories in foods. The total or
maximum number of calories in foods represents the ______________. - ANSWER potential
energy
, What are the energy losses from the macronutrients as the body utilizes them for fuel? -
ANSWER -Carbohyrdrates: 5%
-Fats: 5%
-Proteins: 10% (loses more due to Nitrogen present in amino acids)
What losses of energy appear in the stool? - ANSWER Indigestible energy losses appear in the
stool
What energy nutrient results in urinary losses of energy and why? - ANSWER Urea is created
to transport indigestible energy losses from protein (nitrogen) to urine
What are the Physiological Fuel Values (and units) for the energy nutrients? - ANSWER
-Carbohydrates: 4 kcal/g
-Fats: 9 kcal/g
-Proteins: 4 kcal/g
Indigestible energy losses from protein appear in the stool, while indigestible energy losses
from carbohydrates appear in the urine. - ANSWER False, indigestible energy losses from all
the macronutrients, carbohydrate, protein, and fat, appear in the stool. Since protein contains
nitrogen, the body must also remove the nitrogen and excrete it as urea in the urine, which
represents a metabolic energy loss.
100% Solved
Where is the potential energy in foods? - ANSWER
How is this energy released and how can it be measured? - ANSWER -The energy is released
through heat
-It is measured using a calorimeter
What is the unit of measure for energy in the macronutrients? - ANSWER -Kilocalorie
-Kcal
-Calorie
Which of the following is the true about the definition of "energy"? - ANSWER -"Energy" can
refer to doing metabolic work
-"Energy" is the ability to do work
-"Energy" can refer to doing physical work
What is a calorie? - ANSWER A measure of heat energy
A bomb calorimeter is used to calculate the number of calories in foods. The total or
maximum number of calories in foods represents the ______________. - ANSWER potential
energy
, What are the energy losses from the macronutrients as the body utilizes them for fuel? -
ANSWER -Carbohyrdrates: 5%
-Fats: 5%
-Proteins: 10% (loses more due to Nitrogen present in amino acids)
What losses of energy appear in the stool? - ANSWER Indigestible energy losses appear in the
stool
What energy nutrient results in urinary losses of energy and why? - ANSWER Urea is created
to transport indigestible energy losses from protein (nitrogen) to urine
What are the Physiological Fuel Values (and units) for the energy nutrients? - ANSWER
-Carbohydrates: 4 kcal/g
-Fats: 9 kcal/g
-Proteins: 4 kcal/g
Indigestible energy losses from protein appear in the stool, while indigestible energy losses
from carbohydrates appear in the urine. - ANSWER False, indigestible energy losses from all
the macronutrients, carbohydrate, protein, and fat, appear in the stool. Since protein contains
nitrogen, the body must also remove the nitrogen and excrete it as urea in the urine, which
represents a metabolic energy loss.
