One Way to Determine the Total Energy in Calories of a Food

question 90

Essay

One way to determine the total energy in calories of a food is to burn it in a device called a bomb calorimeter.The heat produced during combustion minus the heat added to begin the combustion is the total calories in the food.The typical human digestive tract does not absorb all of the calories in food; thus it is not 100% efficient.Furthermore,calories in undigestible organic compounds may not be absorbed at all,and thus can be considered to be zero calorie relative to human nutrition.Artificial sweeteners and fats are designed to produce desired sensation in the mouth without being absorbed.These are organic compounds that would release heat in a bomb calorimeter,thus they technically have calories.
A.What does this suggest about the accuracy of the bomb calorimeter in determining available food calories for humans? What would be the results of bomb calorimetry of human feces?
B.What is it about a particular food substance that may prevent absorption of its calories?
C.What happens to the "zero-calorie" molecules as they pass through the digestive tract? What are the potential effects on defecation?

Understand the historical development and key components of intelligence testing.

Recognize the contributions of key theorists to the field of intelligence, including Binet, Wechsler, and Terman.

Understand the concept of IQ and how it is calculated.

Identify factors that contribute to success in life beyond IQ scores.

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Definitions:

Corporate Codes

Formal statements of values, ethical principles, and guidelines for conduct expected from employees and the organization as a whole.

Codes of Conduct

Written guidelines designed to set out acceptable behaviors for members of a particular group, organization, or profession.

Ethical Behavior

Conduct that is in accordance with accepted principles of right and wrong governing the conduct of a profession.

Bad Barrel

A metaphor implying that systemic issues within an organization or environment lead to unethical behaviour or corruption, not just individual 'bad apples'.