Jody Is Taking a Nutrition Class, and Has Been Assigned

question 74

Multiple Choice

Jody is taking a nutrition class, and has been assigned to evaluate a popular diet plan. She finds a description of a plan for her assignment in a magazine at the grocery store. Which of the following statements in the magazine would suggest that this plan is an unsound, fad diet?

• A) "Keep fresh fruit or carrot sticks in the fridge at work so you won't be tempted to raid the vending machine for a snack."
• B) "Once you complete this 6-month plan, you'll never have to diet again."
• C) "Starting an aerobic exercise plan may seem daunting, but you can start out with shorter, easier sessions and then build up to 3 or more hours a week."
• D) "On this plan, you can lose up to 5 kgs per week!"

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Definitions:

Temporary Dipole

A temporary dipole occurs when there is a short-lived imbalance of electron density within a molecule, causing a temporary separation of charges.

Intermolecular Force

The forces of attraction or repulsion which act between neighboring particles (atoms, molecules, or ions).

Dispersion Forces

Weak forces resulting from temporary polarization of molecules due to the movement of electrons, also known as London dispersion forces.

Van Der Waals

Weak forces of attraction between molecules, named after Dutch physicist Johannes Diderik van der Waals, significant in the properties of gases and liquids.