Exam 6: Lipids: The Condensed Energy

Lecithin,a phospholipid used for energy,is present in all cells.Lecithin is present in thromboplastin,which is necessary for blood clotting.

Lipids provide more energy per gram than carbohydrate because lipids contain more oxygen in proportion to hydrogen and carbon.

The diet of a patient who consumes 120 g of fat from eating 3000 kcal/day is 36% fat.Each gram of saturated fat has 9 cal,while each gram of unsaturated fat has only 4 cal.

Fats contribute to a feeling of fullness for a longer time than carbohydrates or protein because digestion of high-fat meals more efficiently deposits fat molecules in adipose tissue.

Oleic acid is classified as a trans fatty acid because it is hydrogenated.

Each is characteristic of fat,except one.Which is the exception?

Dental hygienists should recommend that patients avoid beef graded "select" because this grade contains a high level of fat and marbling.

Which has the most satiety value?

In each condition,underconsumption of fat is a concern,except one.Which is the exception?

Patients should be counseled to select foods labeled as "low cholesterol." Stick margarine,a cholesterol-free product,is a good selection because it is low in saturated fat and only partially hydrogenated.

Each is true of phospholipids,except one.Which is the exception?

Which fat is the most saturated?

High-density lipoproteins are considered detrimental to cardiovascular health because they contain only trace amounts of protein and large amounts of lipid.

To distinguish obesity from edema,the skin should be palpated and observed through light magnification.The skin of an obese patient will exhibit a flabby consistency in contrast to the spongy consistency found in edematous skin.

A new patient expresses her interest in limiting fat kilocalorie intake,when the hygienist engages in nutritional counseling.Which strategy is NOT recommended?

Which is the most common trans fatty acid?

Which food group in MyPyramid always contains fat?

Saturated fatty acids (SFAs)contain only single bonds.Palmitic and stearic acids,both SFAs,are structural components of the periodontium.

Linoleic and arachidonic acids are omega-6 fatty acids because their first double bond occurs on the sixth carbon from the omega (terminal)end.

The body synthesizes linoleic acid,an omega-6 fatty acid.Deficiency symptoms include growth retardation,skin lesions,and reproductive failure.