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Question 1

What is the function of LDL receptors?

  1. LDL receptors convert VLDLs to LDLs 
  2. LDL receptors remove LDLs from the blood and return them to the liver.
  3. When LDL receptors decline in number, so do LDL cholesterol levels in the blood.
  4. LDL receptors, found on the liver, release LDLs into the blood.

Question 2

Which statement best distinguishes between lipoprotein lipase and hormone-sensitive lipase?

  1. Hormone-sensitive lipase hydrolyzes triglycerides present in VLDLs and chylomicrons, while lipoprotein lipase hydrolyzes triglycerides in adipose tissue, releasing free fatty acids.
  2. The action of lipoprotein lipase is suppressed by insulin, while the action of hormone-sensitive lipase is not.
  3. Lipoprotein lipase hydrolyzes triglycerides present in VLDLs and chylomicrons while hormone-sensitive lipase hydrolyzes triglycerides in adipose tissue releasing free fatty acids.  
  4. Hormone-sensitive lipase is most active in the presence of insulin, while lipoprotein lipase is not.

Question 3

 “A polyunsaturated fatty acid with 18 carbons and three double bonds, in cis configuration, beginning at carbon-3, counting from the methyl end of the molecule.” Which fatty acid is being described

  1. Oleic acid
  2. Linoleic acid
  3. Alpha linolenic acid
  4. EPA

Question 4

After digestion and absorption of dietary lipids, which lipid-containing particle enters the bloodstream?

  1. Micelle
  2. LDL
  3. Chylomicron
  4. VLDL

Question 5

Which dietary pattern is the least likely to lower cholesterol levels?

  1. The Mediterranean diet
  2. The DASH plan
  3. A diet consisting of highly processed foods
  4. The Portfolio diet

Question 6

Which food is not included in the portfolio diet?

  1. Oatmeal
  2. Fish  
  3. Barley
  4. Almonds

Question 7

Which fatty acids help promote bile acid synthesis?

  1. Omega 3
  2. MUFA  
  3. Omega 6
  4. saturated

Question 8

What is the mechanism by which omega-3 fatty acids lower serum triglycerides?

  1. Promoting beta oxidation in adipose tissue
  2. Reducing the levels of oxidized cholesterol in LDL particles
  3. Increasing LDL receptors
  4. Promoting beta oxidation in the liver

You should also check out this soultion (Solution) NFS284 Science and Values Quiz 2

Solution

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