Which of the following statements is FALSE? Which of the following statements is FALSE? LDL is...
Which of the following statements is FALSE? Which of the following statements is FALSE?
LDL is the main form in which cholesterol is transported to tissues.
VLDL transports triacylglycerol synthesized in the liver to peripheral tissues.
The cholesterol ester content of HDL is generally less than that of chylomicrons.
Some fatty acids become complexed with serum albumin for transport in the blood to peripheral cells.
Chylomicrons are lipoproteins that transport dietary fat from intestine to peripheral tissues.
Homework Answers
The cholesterol ester content of HDL is generally less than that of chylomicrons.
While chylomicrons contain about 3% of cholesteryl esters, the percent cholesteryl esters in HDL is about 15 - 30%.
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Which of the following statements is FALSE? Which of the
following statements is FALSE?
LDL is...
6. Explain how VLDL is metabolized by lipases to intermediate-density lipoprotein (IDL) which may be cleared...
6. Explain how VLDL is metabolized by lipases to intermediate-density lipoprotein (IDL) which may be cleared by the liver or converted to lowdensity lipoprotein (LDL), which functions to deliver cholesterol from the liver to extrahepatic tissues via the LDL (apoB100, E) receptor. 7. Explain how high-density lipoprotein (HDL) is synthesized, indicate the mechanisms by which it accepts cholesterol from extrahepatic tissues and returns it to the liver in reverse cholesterol transport. 8. Describe how the liver plays a central role...
The liver can absorb cholesterol from peripheral tissues via the blood. This process is known as...
The liver can absorb cholesterol from peripheral tissues via the blood. This process is known as reverse cholesterol transport. Which is considered to be the quantitatively most significant way in which liver hepatocytes take up cholesterol from human peripheral tissue? a. Cholesterol is amphipathic and circulates in the blood freely or bound to globulins, from which it is primarily taken up by the hepatocytes by direct incorporation into the plasma membrane. b. Cholesterol is primarily taken up by endocytosis of...
Using Figure 20-7 in your text evaluate the following situation. You have been invited toattend Dr....
Using Figure 20-7 in your text evaluate the following situation.
You have been invited toattend Dr. John Ambrose’s (Professor of
Medicine, UCSF; Director of Cardiology,Community Regional Medical
Center; Chief of Cardiology, UCSF Fresno; Program Director, UCSF
Fresno Cardiovascular Fellowship) lecture on “Sudden Cardiac
Deathand Cardiac Arrest.” You were one of the lucky guests that
were also invited to thebreakfast which consisted of scrambled
eggs, biscuits and gravy, bacon and sausage, fresh fruit, coffee,
juice and hot tea. Several hours later...
Which of the following statements is true about the composition of lipoproteins? a HDL contains more...
Which of the following statements is true about the composition of lipoproteins? a HDL contains more cholesterol than LDL or VLDL. b LDL contains more cholesterol than HDL or VLDL c LDL contains more protein than HDL. d VLDL contains fewer triglycerides than HDL or LDL.
VLDLs is denser than fat, and determines the overall density of a lipoprotein. bile are the...
VLDLs is denser than fat, and determines the overall density of a lipoprotein. bile are the only type of lipoprotein that gets circulated in the lymph. HDLs lymphatic system are the least dense of the lipoproteins produced by the liver. liver 4. VLDLs are transformed into after transport of triglycerides and cholesterol to muscle and fat cells. protein are the densest type of lipoprotein that circulates in the bloodstream; they serve to remove cholesterol chylomicrons from cells and deliver it...
8.5 pts) Choose the saturated triacylglycerol from the compounds below. HC-0- HC-00 HC-0 1.C- 0-C 9....
8.5 pts) Choose the saturated triacylglycerol from the compounds below. HC-0- HC-00 HC-0 1.C- 0-C 9. (5 pts) Choose the unsaturated triacylglycerol from the compounds below. H. CO HC-0-0 H. COC HC-0-0 10. (5 pts) Identify the components (glycerol, fatty acid, phosphate, amino alcohol, steroid nucleus, sphingosine) contained in each of the following lipids. glycerophospholipid sphingomyelin aldosterone Linoleic acid 11. (5 pts) Match each lipoprotein (1-4) with its description (a-d). 1. chylomicron 2. VLDL 3. LDL 4. HDL a. "good"...
match the following fat carriers with their descriptions: made in intestinal cells after fats have been...
match the following fat carriers with their descriptions: made in intestinal cells after fats have been absorbed, released to lacteals LDL made by the liver, carry cholesterol to cells of the body, considered "bad" if there are too many HDL made by the liver, carry cholesterol back to the liver, considered "good" all lipoproteins (chylomicrons, HDLs, LDLs, VLDLs) composed...
QUESTION 3 There are four classes of lipoproteins which of the following correctly pairs the class...
QUESTION 3 There are four classes of lipoproteins which of the following correctly pairs the class of lipoprotein with its function in the body A. None of these answers are correct OB. High-density lipoproteins (HDLs) - transport dietary lipids to adipose tissue OC. Low-density lipoproteins (LDLS). carry about 75% of the total cholesterol in blood and delivers it to cells OD. Very low-density lipoproteins (VLDLS). remove excess cholesterol from body cells and the blood and transports it to the liver...
The liver can absorb cholesterol from peripheral tissues via the blood. This process is known as...
The liver can absorb cholesterol from peripheral tissues via the blood. This process is known as lapel cholesterol transport. Which is considered to be the quantitatively significant way in which liver hepatocytes absorb cholesterol from peripheral tissues in man? a. Cholesterol is primarily absorbed from HDL particles that are drained of cholesterol by binding to Scavenger Receptor B1 in the plasma membrane of hepatocytes. b. Cholesterol is absorbed primarily by lipoprotein lipase-catalyzed hydrolysis of colesterylestre in triglyceride- and colesterylester-rich VLDL...
Which of the following types of lipoprotein contains the highest percentage of protein? 1) VLDL 2) HDL 3) LDL O 4...
Which of the following types of lipoprotein contains the highest percentage of protein? 1) VLDL 2) HDL 3) LDL O 4) chylomicron 100% Question 5 (1 point) Triglycerides contain a glycerol backbone attached to four fatty acids. 1) True 2) False Question 6 (1 point) Which lipoprotein has the highest cholesterol content? 1) HDL 2 2) chylomicron 3) VLDL 100% search 1) HDL 2) chylomicron 3) VLDL 4) LDL Question 7 (1 point) High blood cholesterol levels can partly be...
Using Figure 20-7 in your text evaluate the following situation.
You have been invited toattend Dr. John Ambrose’s (Professor of
Medicine, UCSF; Director of Cardiology,Community Regional Medical
Center; Chief of Cardiology, UCSF Fresno; Program Director, UCSF
Fresno Cardiovascular Fellowship) lecture on “Sudden Cardiac
Deathand Cardiac Arrest.” You were one of the lucky guests that
were also invited to thebreakfast which consisted of scrambled
eggs, biscuits and gravy, bacon and sausage, fresh fruit, coffee,
juice and hot tea. Several hours later...
VLDLs is denser than fat, and determines the overall density of a lipoprotein. bile are the only type of lipoprotein that gets circulated in the lymph. HDLs lymphatic system are the least dense of the lipoproteins produced by the liver. liver 4. VLDLs are transformed into after transport of triglycerides and cholesterol to muscle and fat cells. protein are the densest type of lipoprotein that circulates in the bloodstream; they serve to remove cholesterol chylomicrons from cells and deliver it...
8.5 pts) Choose the saturated triacylglycerol from the compounds below. HC-0- HC-00 HC-0 1.C- 0-C 9. (5 pts) Choose the unsaturated triacylglycerol from the compounds below. H. CO HC-0-0 H. COC HC-0-0 10. (5 pts) Identify the components (glycerol, fatty acid, phosphate, amino alcohol, steroid nucleus, sphingosine) contained in each of the following lipids. glycerophospholipid sphingomyelin aldosterone Linoleic acid 11. (5 pts) Match each lipoprotein (1-4) with its description (a-d). 1. chylomicron 2. VLDL 3. LDL 4. HDL a. "good"...
QUESTION 3 There are four classes of lipoproteins which of the following correctly pairs the class of lipoprotein with its function in the body A. None of these answers are correct OB. High-density lipoproteins (HDLs) - transport dietary lipids to adipose tissue OC. Low-density lipoproteins (LDLS). carry about 75% of the total cholesterol in blood and delivers it to cells OD. Very low-density lipoproteins (VLDLS). remove excess cholesterol from body cells and the blood and transports it to the liver...
The liver can absorb cholesterol from peripheral tissues via the blood. This process is known as lapel cholesterol transport. Which is considered to be the quantitatively significant way in which liver hepatocytes absorb cholesterol from peripheral tissues in man? a. Cholesterol is primarily absorbed from HDL particles that are drained of cholesterol by binding to Scavenger Receptor B1 in the plasma membrane of hepatocytes. b. Cholesterol is absorbed primarily by lipoprotein lipase-catalyzed hydrolysis of colesterylestre in triglyceride- and colesterylester-rich VLDL...
Which of the following types of lipoprotein contains the highest percentage of protein? 1) VLDL 2) HDL 3) LDL O 4) chylomicron 100% Question 5 (1 point) Triglycerides contain a glycerol backbone attached to four fatty acids. 1) True 2) False Question 6 (1 point) Which lipoprotein has the highest cholesterol content? 1) HDL 2 2) chylomicron 3) VLDL 100% search 1) HDL 2) chylomicron 3) VLDL 4) LDL Question 7 (1 point) High blood cholesterol levels can partly be...
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