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Lipids

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Oct 17th, 2023
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18 test answers
question
The most common lipid(s) found in both foods and the body is/are __________.glycerolcholesterollecithintriglycerides
answer
triglycerides
question
A key difference between omega-3 fatty acids and omega-6 fatty acids is __________.hydrogenation of the omega bondthe configuration or shape around the double bondthe location of the first double bondomega-6 fatty acids never become rancid
answer
the location of the first double bond
question
Fat is digested and absorbed by the same process that digests and absorbs carbohydrates and proteins.FalseTrue
answer
False
question
Most of the triglycerides in food reach the stomach without being chemically digested.TrueFalse
answer
True
question
Which of the following statements is false?Fats are nonessential nutrients.Once absorbed, dietary fat is transported from the intestinal cells to the blood through the lymph fluid.Significant chemical digestion begins in the duodenum.Bile plays a role in digestion.
answer
Fats are nonessential nutrients.
question
Lipids enter the bloodstream directly after digestion.TrueFalse
answer
False
question
Which enzyme is responsible for the majority of the digestions of lipids?pancreatic lipaselingual lipasebilegastric lipase
answer
pancreatic lipase
question
What are micelles?lipid-digesting enzymes located in the small intestinea type of lipoprotein needed to absorb lipidsemulsifiers used to break fat globules into small droplets during digestionclusters of fatty acids, monoglycerides, and other lipids surrounded by bile salts that transport lipids across the cell membrane of the villi
answer
clusters of fatty acids, monoglycerides, and other lipids surrounded by bile salts that transport lipids across the cell membrane of the villi
question
Which of the following statements correctly describes the metabolic fate of the lipids transported by lipoproteins?The LDL cholesterol interacts with receptor sites on the surface of cells to release cholesterol that can be used to make bile, hormones, and vitamin D.Cholesterol removed from the cells by LDLs is carried back to the liver and excreted through bile, decreasing the risk of atherosclerosis or blocked arteries.As the VLDL moves along the bloodstream, an enzyme hydrolyzes protein from the surface of the lipoproteins to be taken up by the muscle and adipose cells.The HDL cholesterol is often referred to as the bad cholesterol because it transports cholesterol released from the liver and may deposit the cholesterol in the arterial cells, increasing the risk of atherosclerosis or blocked arteries.
answer
The LDL cholesterol interacts with receptor sites on the surface of cells to release cholesterol that can be used to make bile, hormones, and vitamin D.
question
A primary risk factor for cardiovascular disease is elevated blood lipids, especially LDL cholesterol. The level of total cholesterol and HDL cholesterol relative to LDL cholesterol in the blood can be useful in determining the health of the arteries and the risk of developing heart disease. The optimal level of blood lipids includes a lower total cholesterol and LDL cholesterol to reduce the amount of lipids that infiltrate the arterial wall creating plaque buildup. A higher HDL cholesterol may help protect against cholesterol buildup in the arterial wall.Which of the following blood lipids typically analyzed in a blood lipid profile are considered optimal to reduce the risk of heart disease?Total cholesterol between 200-210 mg/dl LDL cholesterol >190 mg/dl HDL cholesterol >60 mg/dlTotal cholesterol <200 mg/dl LDL cholesterol 100-129 mg/dl HDL cholesterol 40 mg/dlTotal cholesterol between 200-239 mg/dlLDL cholesterol <100 mg/dl HDL cholesterol between 40-60 mg/dlTotal cholesterol <200 mg/dl LDL cholesterol <100 mg/dlHDL cholesterol >60 mg/dl
answer
Total cholesterol <200 mg/dl LDL cholesterol <100 mg/dlHDL cholesterol >60 mg/dl
question
Which class of lipoproteins contains the MOST protein compared to lipid?very-low-density lipoproteinschylomicronslow-density lipoproteinshigh-density lipoproteins
answer
high-density lipoproteins
question
Which of the following statements regarding lipoproteins is TRUE?The enzyme lingual lipase is responsible for removing triglycerides transported by the LDL.Plaque is a build-up of lipoproteins in the bloodstream.Low-density lipoproteins (LDLs) are formed in the small intestines to transport absorbed dietary lipids.As the very low-density lipoproteins (VLDLs) deposit triglycerides in the cells, they become denser and are classified as low-density lipoproteins (LDLs).
answer
As the very low-density lipoproteins (VLDLs) deposit triglycerides in the cells, they become denser and are classified as low-density lipoproteins (LDLs).
question
Cholesterol transported from the cells to the liver by HDL can then be used to synthesize bile.FalseTrue
answer
True
question
Saturated fatty acids are saturated with _____.carbonglycerolhydrogenfat
answer
hydrogen
question
The most healthful dietary lipid to consume is __________.saturated fattrans fatunsaturated fatcholesterol
answer
unsaturated fat
question
A lipid that the body requires to make several critical substances but can't synthesize on its own is _____.cholesterolphosphatesvitamin Domega-3 fatty acids
answer
omega-3 fatty acids
question
How much of your daily caloric intake should come from all fats?20% to 35%5% to 10%40% to 45%10% to 20%
answer
20% to 35%
question
A good source of EPA and DHA in the diet is _____.oatsfried foodsfatty fishlettuce
answer
fatty fish
1 of 18
question
The most common lipid(s) found in both foods and the body is/are __________.glycerolcholesterollecithintriglycerides
answer
triglycerides
question
A key difference between omega-3 fatty acids and omega-6 fatty acids is __________.hydrogenation of the omega bondthe configuration or shape around the double bondthe location of the first double bondomega-6 fatty acids never become rancid
answer
the location of the first double bond
question
Fat is digested and absorbed by the same process that digests and absorbs carbohydrates and proteins.FalseTrue
answer
False
question
Most of the triglycerides in food reach the stomach without being chemically digested.TrueFalse
answer
True
question
Which of the following statements is false?Fats are nonessential nutrients.Once absorbed, dietary fat is transported from the intestinal cells to the blood through the lymph fluid.Significant chemical digestion begins in the duodenum.Bile plays a role in digestion.
answer
Fats are nonessential nutrients.
question
Lipids enter the bloodstream directly after digestion.TrueFalse
answer
False
question
Which enzyme is responsible for the majority of the digestions of lipids?pancreatic lipaselingual lipasebilegastric lipase
answer
pancreatic lipase
question
What are micelles?lipid-digesting enzymes located in the small intestinea type of lipoprotein needed to absorb lipidsemulsifiers used to break fat globules into small droplets during digestionclusters of fatty acids, monoglycerides, and other lipids surrounded by bile salts that transport lipids across the cell membrane of the villi
answer
clusters of fatty acids, monoglycerides, and other lipids surrounded by bile salts that transport lipids across the cell membrane of the villi
question
Which of the following statements correctly describes the metabolic fate of the lipids transported by lipoproteins?The LDL cholesterol interacts with receptor sites on the surface of cells to release cholesterol that can be used to make bile, hormones, and vitamin D.Cholesterol removed from the cells by LDLs is carried back to the liver and excreted through bile, decreasing the risk of atherosclerosis or blocked arteries.As the VLDL moves along the bloodstream, an enzyme hydrolyzes protein from the surface of the lipoproteins to be taken up by the muscle and adipose cells.The HDL cholesterol is often referred to as the bad cholesterol because it transports cholesterol released from the liver and may deposit the cholesterol in the arterial cells, increasing the risk of atherosclerosis or blocked arteries.
answer
The LDL cholesterol interacts with receptor sites on the surface of cells to release cholesterol that can be used to make bile, hormones, and vitamin D.
question
A primary risk factor for cardiovascular disease is elevated blood lipids, especially LDL cholesterol. The level of total cholesterol and HDL cholesterol relative to LDL cholesterol in the blood can be useful in determining the health of the arteries and the risk of developing heart disease. The optimal level of blood lipids includes a lower total cholesterol and LDL cholesterol to reduce the amount of lipids that infiltrate the arterial wall creating plaque buildup. A higher HDL cholesterol may help protect against cholesterol buildup in the arterial wall.Which of the following blood lipids typically analyzed in a blood lipid profile are considered optimal to reduce the risk of heart disease?Total cholesterol between 200-210 mg/dl LDL cholesterol >190 mg/dl HDL cholesterol >60 mg/dlTotal cholesterol <200 mg/dl LDL cholesterol 100-129 mg/dl HDL cholesterol 40 mg/dlTotal cholesterol between 200-239 mg/dlLDL cholesterol <100 mg/dl HDL cholesterol between 40-60 mg/dlTotal cholesterol <200 mg/dl LDL cholesterol <100 mg/dlHDL cholesterol >60 mg/dl
answer
Total cholesterol <200 mg/dl LDL cholesterol <100 mg/dlHDL cholesterol >60 mg/dl
question
Which class of lipoproteins contains the MOST protein compared to lipid?very-low-density lipoproteinschylomicronslow-density lipoproteinshigh-density lipoproteins
answer
high-density lipoproteins
question
Which of the following statements regarding lipoproteins is TRUE?The enzyme lingual lipase is responsible for removing triglycerides transported by the LDL.Plaque is a build-up of lipoproteins in the bloodstream.Low-density lipoproteins (LDLs) are formed in the small intestines to transport absorbed dietary lipids.As the very low-density lipoproteins (VLDLs) deposit triglycerides in the cells, they become denser and are classified as low-density lipoproteins (LDLs).
answer
As the very low-density lipoproteins (VLDLs) deposit triglycerides in the cells, they become denser and are classified as low-density lipoproteins (LDLs).
question
Cholesterol transported from the cells to the liver by HDL can then be used to synthesize bile.FalseTrue
answer
True
question
Saturated fatty acids are saturated with _____.carbonglycerolhydrogenfat
answer
hydrogen
question
The most healthful dietary lipid to consume is __________.saturated fattrans fatunsaturated fatcholesterol
answer
unsaturated fat
question
A lipid that the body requires to make several critical substances but can't synthesize on its own is _____.cholesterolphosphatesvitamin Domega-3 fatty acids
answer
omega-3 fatty acids
question
How much of your daily caloric intake should come from all fats?20% to 35%5% to 10%40% to 45%10% to 20%
answer
20% to 35%
question
A good source of EPA and DHA in the diet is _____.oatsfried foodsfatty fishlettuce
answer
fatty fish