The 2010 Dietary Guidelines Identified Several "Nutrients of Concern" That

question 53

Multiple Choice

The 2010 Dietary Guidelines identified several "nutrients of concern" that are known to be somewhat lacking in the American diet They are:

• A)iron, calcium, phosphorus, and zinc.
• B)iron, calcium, vitamin D, and vitamin A.
• C)potassium, dietary fiber, calcium, and vitamin D.
• D)potassium, dietary fiber, phosphorus, and vitamin D.

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Definitions:

Gap Junctions

Cell structures that allow for the direct communication between cells through the connecting of cytoplasmic channels, enabling the transfer of various molecules and ions.

Channel Proteins

Proteins that form pores in a cell membrane, allowing specific ions or molecules to pass through.

Hydrophilic Head

The part of a molecule, particularly in lipids, that is attracted to water.

Phospholipids

Phospholipids are a class of lipids forming the major component of all cell membranes, characterized by a hydrophilic head and two hydrophobic tails, providing vital barrier and structural functions.