(a)
Interpretation:
The total Calorie content in a slice of the given bread has to be calculated.
Concept introduction:
Macronutrients:
- • They are required in relatively large amounts.
- • Required for the growth,
metabolism and other body functions. - • Calories are included in the compounds containing macronutrients.
- • There will be no toxic effect in their higher concentration.
- • Examples include carbohydrates, proteins and fats.
(a)
Explanation of Solution
Given that a slice of whole wheat bread
According to the average energy content of macronutrients, one gram of fat contain nine Calorie of energy, one gram of carbohydrate contain four Calorie of energy and one gram of protein contain four Calorie of energy.
The energy content in
The energy content in
The energy content in
The total number of Calories per slice of bread is calculated as below:
(b)
Interpretation:
The percent of Calories from fat has to be calculated.
Concept introduction:
Macronutrients:
- • They are required in relatively large amounts.
- • Required for the growth, metabolism and other body functions.
- • Calories are included in the compounds containing macronutrients.
- • There will be no toxic effect in their higher concentration.
- • Examples include carbohydrates, proteins and fats.
(b)
Explanation of Solution
Given that a slice of whole wheat bread
The energy content in
The total number of Calories per slice of bread is calculated as below:
The percent Calories from fat is calculated as below:
(c)
Interpretation:
The reason for considering bread as a highly nutritious food has to be explained.
Concept introduction:
Macronutrients:
- • They are required in relatively large amounts.
- • Required for the growth, metabolism and other body functions.
- • Calories are included in the compounds containing macronutrients.
- • There will be no toxic effect in their higher concentration.
- • Examples include carbohydrates, proteins and fats.
(c)
Explanation of Solution
Bread can be considered as a highly nutritious food.
The reason is that one slice of bread equals to have calories of whole grains with some additional calories from sugars and fats.
Therefore, if one slice of bread provides one serving, then a sandwich is considered as two servings.
Want to see more full solutions like this?
Chapter 11 Solutions
CHEMISTRY IN CONTEXT
- One way to lose weight is to exercise! Walking briskly at 4.0 miles per hour for an hour consumes about 400 kcal of energy. How many hours would you have to walk at 4.0 miles per hour to lose one pound of body fat? One gram of body fat is equivalent to 7.7 kcal of energy. There are 454 g in 1 lb.arrow_forwardA teaspoon of the carbohydrate sucrose (common sugar) contains 16 Calories (16 kcal). What is the mass of one teaspoon of sucrose if the average number of Calories for carbohydrates is 4.1 Calories/g?arrow_forwardA pint of premium ice cream can contain 1100 Calories. What mass of fat, in grams and pounds, must be produced in the body to store an extra 1.1103 Calories if the average number of Calories for fat is 9.1 Calories/g?arrow_forward
- Chemistry by OpenStax (2015-05-04)ChemistryISBN:9781938168390Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark BlaserPublisher:OpenStaxChemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage LearningChemistry: An Atoms First ApproachChemistryISBN:9781305079243Author:Steven S. Zumdahl, Susan A. ZumdahlPublisher:Cengage Learning
- ChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage LearningWorld of ChemistryChemistryISBN:9780618562763Author:Steven S. ZumdahlPublisher:Houghton Mifflin College Div