Nutrition Metabolism FNDH 620 Exam 2 |
100% Correct | Verified | 2024 Version
What are the most prevalent saturated fatty acids in the average US diet? - ✔✔palmitic and stearic acid
What is formed when fatty acids are oxidized in the mitochondria? - ✔✔acetyl CoA
What are the primary sites of fatty acid synthesis? - ✔✔liver and fat cells
Where does fatty acid synthesis from acetyl-CoA occur? - ✔✔cytosol
What is needed for lipid and cholesterol biosynthesis? - ✔✔acetyl-CoA from the mitochondria needs to
move into the cytoplasm
What is the first step in fatty acid synthesis? - ✔✔Synthesis of malonyl-CoA by acetyl-CoA carboxylase
What is the normal product of the fatty acid synthase? - ✔✔palmitate
Which fatty acid is considered essential and must be supplied by the diet?
A. a-linolenic acid
B. Linoleic acid
C. y-linolenic acid
D. Arachidonic acid
E. A and B - ✔✔a-linolenic acid and linoleic acid
How much cholesterol does the human body build each day? - ✔✔700mg
Cholesterol is the precursor of the following except:
, A. Estrogens
B. Glucocorticoids
C. Bile acids
D. Vitamin D
E. Phospholipids - ✔✔E. Phospholipids
What is the most active site of lipid digestion? - ✔✔upper jejunum
The main function of the lipoprotein is:
A. To facilitate lipid digestion
B. To protect against CVD
C. To act as the carrier of lipids
D. To provide energy
E. All of the above - ✔✔C. To act as the carrier of lipids
What is the main component of an HDL molecule? - ✔✔protein
How do the chylomicrons enter the vein? - ✔✔via lymphatic system
LDL-cholesterol is often termed "bad cholesterol" because it has been linked to atherogenic fatty plaque
formation. (T/F) - ✔✔True
Trans unsaturated fatty acids are now considered more atherogenic than saturated fatty acids because
they:
A. are unnatural and only formed during fat processing
B. cause excess blood clotting
C. elevate serum LDL while decreasing HDL
D. are saturated completely - ✔✔C. elevate serum levels while decreasing HDL
100% Correct | Verified | 2024 Version
What are the most prevalent saturated fatty acids in the average US diet? - ✔✔palmitic and stearic acid
What is formed when fatty acids are oxidized in the mitochondria? - ✔✔acetyl CoA
What are the primary sites of fatty acid synthesis? - ✔✔liver and fat cells
Where does fatty acid synthesis from acetyl-CoA occur? - ✔✔cytosol
What is needed for lipid and cholesterol biosynthesis? - ✔✔acetyl-CoA from the mitochondria needs to
move into the cytoplasm
What is the first step in fatty acid synthesis? - ✔✔Synthesis of malonyl-CoA by acetyl-CoA carboxylase
What is the normal product of the fatty acid synthase? - ✔✔palmitate
Which fatty acid is considered essential and must be supplied by the diet?
A. a-linolenic acid
B. Linoleic acid
C. y-linolenic acid
D. Arachidonic acid
E. A and B - ✔✔a-linolenic acid and linoleic acid
How much cholesterol does the human body build each day? - ✔✔700mg
Cholesterol is the precursor of the following except:
, A. Estrogens
B. Glucocorticoids
C. Bile acids
D. Vitamin D
E. Phospholipids - ✔✔E. Phospholipids
What is the most active site of lipid digestion? - ✔✔upper jejunum
The main function of the lipoprotein is:
A. To facilitate lipid digestion
B. To protect against CVD
C. To act as the carrier of lipids
D. To provide energy
E. All of the above - ✔✔C. To act as the carrier of lipids
What is the main component of an HDL molecule? - ✔✔protein
How do the chylomicrons enter the vein? - ✔✔via lymphatic system
LDL-cholesterol is often termed "bad cholesterol" because it has been linked to atherogenic fatty plaque
formation. (T/F) - ✔✔True
Trans unsaturated fatty acids are now considered more atherogenic than saturated fatty acids because
they:
A. are unnatural and only formed during fat processing
B. cause excess blood clotting
C. elevate serum LDL while decreasing HDL
D. are saturated completely - ✔✔C. elevate serum levels while decreasing HDL
