All of the following statements regarding lipids are correct EXCEPT for O lipids contain less energy per unit weight than carbohydrates O lipids are the body's natural way to store energy long-term O lipids are harder to digest than proteins O lipids are relatively uncharged O most lipids cannot be broken down by the body

All of the following statements regarding lipids are correct EXCEPT for O lipids contain less energy per unit weight than carbohydrates O lipids are the body's natural way to store energy long-term O lipids are harder to digest than proteins O lipids are relatively uncharged O most lipids cannot be broken down by the body

Ebk:Nutrition & Diet Therapy

10th Edition

ISBN:9780357391747

Author:DEBRUYNE

Publisher:DEBRUYNE

Chapter6: Metabolism, Energy Balance, And Body Composition

Section: Chapter Questions

Problem 3SC

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Effects of Dietary Fats on Lipoprotein Levels Cholesterol that is made by the liver or that enters the body from food does not dissolve in blood, so it is carried through the bloodstream by lipoproteins. Low-density lipoprotein (LDL) carries cholesterol to body tissues such as artery walls, where it can form deposits associated with cardiovascular disease. Thus, LDL is often called bad cholesterol. Highdensity lipoprotein (HDL) carries cholesterol away from tissues to the liver for disposal, so HDL is often called good cholesterol. In 1990, Ronald Mensink and Martijn Katan published a study that tested the effects of different dietary fats on blood lipoprotein levels. Their results are shown in Figure 2.23. In which group was the level of HDL (good cholesterol) lowest?
Effects of Dietary Fats on Lipoprotein Levels Cholesterol that is made by the liver or that enters the body from food does not dissolve in blood, so it is carried through the bloodstream by lipoproteins. Low-density lipoprotein (LDL) carries cholesterol to body tissues such as artery walls, where it can form deposits associated with cardiovascular disease. Thus, LDL is often called bad cholesterol. Highdensity lipoprotein (HDL) carries cholesterol away from tissues to the liver for disposal, so HDL is often called good cholesterol. In 1990, Ronald Mensink and Martijn Katan published a study that tested the effects of different dietary fats on blood lipoprotein levels. Their results are shown in Figure 2.23. Figure 2.23 Effect of diet on lipoprotein levels. Researchers placed 59 men and women on a diet in which 10 percent of their daily energy intake consisted of cis fatty acids, trans fatty acids, or saturated fats. Blood LDL and HDL levels were measured after three weeks on the diet; averaged results are shown in mg/dL (milligrams per deciliter of blood). All subjects were tested on each of the diets. The ratio of LDL to HDL is also shown. Source, Mensink RP, Katan MB, Effect of dietary trans fatty acids on high-density and low-density lipoprotein cholesterol levels in healthy subjects. NEJM 323(7):43945. An elevated risk of heart disease has been correlated with increasing LDL-to-HDL ratios. Rank the three diets according to their predicted effect on cardiovascular health.
Excess carbohydrates and proteins are stored as _____. a. amino acids b. starches c. fats d. monosaccharides
Cholesterol is An essential lipid molecule we can only obtain by ingestion O An essential lipid molecule that can only be obtained by cellular synthesis A non-essential lipid that can only be obtained by cellular synthesis A non-essential lipid nutrient
Which of the following statements are true about lipids? There may be more than one correct answer so make sure to check all answers that are true. Fats tend to be liquid at room temperature while oils tend to be solid. A saturated fat contains fatty acids that only have single bonds between each carbon in the carbon chain. The presence of multiple double bonds in a fatty acid make it more likely that the overall lipid will be a liquid at room temperature. Phospholipids are able to form a phospholipid bilayer due to the fact that they contain a polar component at the "head" of the molecule, and a long and relatively straight non-polar component at the "tail" of the molecule Fats, lipids, and steroids all have the same general structure involving a glycerol molecule and fatty acids.
all of the following statements regarding lipids are correct EXCEPT for A. lipids contain less energy per unit weight than carbohydrates B. lipids are the body's natural way to store energy long term C. lipids are harder to digest than proteins D. lipids are relatively uncharged E. most lipids cannot be broken down by the body
Which of the following statements about lipids is false? O Cholesterol is a saturated fatty acid that decreases fluidity of the cell membrane. The lipid composition of membranes is tightly regulated. Triglycerides are not menrane lipids. Lipid membrane have fluidity which is based upon their composition.
The waxes are lipids that are correctly characterized by which of the following? O have a glycerol backbone with a phosphate group attached to carbon #3 O classified as simple lipids because they don't have fatty acids in their structures O consist of a long-chain fatty acid and alcohol linked by an ester bond O major part of the myelin sheath that surrounds nerve cell axons O primary component of lipoprotein complexes in the blood
What components of the fat in this figure make it a triglyceride?
Which of the following is not a characteristic of carbohydrates?. Provide a major source of fuel for the body Contain more kcalories than protein Add sweetness to food Supply 4 kcalories per gram
Which of the following is TRUE regarding trans fat? It is less harmful than saturate fat It is commonly found in nuts and cold water fish Causes a fatty acid to have a "kink or bend" in the fatty acid structure It causes the fatty acid to appear and behave more like a saturated fat
Proteins function in the body is the building of new cells, the maintenance of existing cells. Thus, the proteins are the most important type of compound in the body. O True O False