Question 1

In what form is most body fat stored?

Accepted Answer

A)  fatty acids 
B)  triacylglycerols 
C)  cholesterol 
D)  phospholipids 
A)  fatty acids 
B)  triacylglycerols 
C)  cholesterol 
D)  phospholipids

Question 2

What are some products of the reaction catalyzed by pancreatic lipase?

Accepted Answer

A)  2-monoacylglycerols, free fatty acids 
B)  free fatty acids, glycerol, cholesterol 
C)  2-monoacylglycerols, free fatty acids, phospholipids 
D)  free fatty acids, glycerol, cholesteryl esters 
A)  2-monoacylglycerols, free fatty acids 
B)  free fatty acids, glycerol, cholesterol 
C)  2-monoacylglycerols, free fatty acids, phospholipids 
D)  free fatty acids, glycerol, cholesteryl esters

Question 3

Lp(a) is a genetic variant of _____; its presence _____ a genetic predisposition to heart disease.

Accepted Answer

A)  LDL, increases 
B)  HDL, decreases 
C)  LDL, decreases 
D)  HDL, increases 
A)  LDL, increases 
B)  HDL, decreases 
C)  LDL, decreases 
D)  HDL, increases

Question 4

153 28. All of the following are functions of apolipoproteins EXCEPT:

Accepted Answer

A)  stimulating enzymatic reactions that regulate the metabolic functions of lipoproteins. 
B)  stabilizing circulating lipoproteins in the blood. 
C)  decreasing the density of the lipoprotein. 
D)  conferring specificity for recognition by receptors on cells. 
A)  stimulating enzymatic reactions that regulate the metabolic functions of lipoproteins. 
B)  stabilizing circulating lipoproteins in the blood. 
C)  decreasing the density of the lipoprotein. 
D)  conferring specificity for recognition by receptors on cells.

Question 5

Which hormone is considered to be an antagonist of lipolysis?

Accepted Answer

A)  insulin 
B)  epinephrine 
C)  glucagon 
D)  thyroxine 
A)  insulin 
B)  epinephrine 
C)  glucagon 
D)  thyroxine

Question 6

Trans unsaturated fatty acids are now considered more atherogenic than saturated fatty acids because they

Accepted Answer

A)  are unnatural and only formed during fat processing. 
B)  cause excess blood clotting. 
C)  elevate serum LDL while decreasing HDL. 
D)  were found to cause sudden cardiac arrest in women. 
A)  are unnatural and only formed during fat processing. 
B)  cause excess blood clotting. 
C)  elevate serum LDL while decreasing HDL. 
D)  were found to cause sudden cardiac arrest in women.

Question 7

What is the most important unsaturated fatty acid serving as a precursor for eicosanoid synthesis?

Accepted Answer

A)  arachidonic acid 
B)  palmitoleic acid 
C)  oleic acid 
D)  erucic acid 
A)  arachidonic acid 
B)  palmitoleic acid 
C)  oleic acid 
D)  erucic acid

Question 8

Choose the correct sequential order for participants in lipid digestion.

Accepted Answer

A)  colipase, pancreatic lipase, bile, micelles 
B)  bile, colipase, pancreatic lipase, micelles 
C)  bile, enterokinase, colipase, micelles 
D)  micelles, bile, pancreatic lipase, colipase 
A)  colipase, pancreatic lipase, bile, micelles 
B)  bile, colipase, pancreatic lipase, micelles 
C)  bile, enterokinase, colipase, micelles 
D)  micelles, bile, pancreatic lipase, colipase

Question 9

Which enzyme will act on corn oil in the small intestine?

Accepted Answer

A)  pancreatic lipase 
B)  lecithin cholesterol acyl transferase 
C)  cholesterol esterase 
D)  lipoprotein lipase 
A)  pancreatic lipase 
B)  lecithin cholesterol acyl transferase 
C)  cholesterol esterase 
D)  lipoprotein lipase

Question 10

When fatty acids are completely oxidized the end products are:

Accepted Answer

A)  fatty acid and glycerol. 
B)  carbon dioxide, energy, and water. 
C)  urea and acetate. 
D)  carbon, hydrogen, and phosphate. 
A)  fatty acid and glycerol. 
B)  carbon dioxide, energy, and water. 
C)  urea and acetate. 
D)  carbon, hydrogen, and phosphate.

Question 11

The fatty acid chains found in foods and body tissues range from _____ carbon atoms in length.

Accepted Answer

A)  1 to 3 
B)  2 to 6 
C)  3 to 12 
D)  4 to 24 
A)  1 to 3 
B)  2 to 6 
C)  3 to 12 
D)  4 to 24

Question 12

What is formed when fatty acids are oxidized in the mitochondria (i.e., what is the end product of beta-oxidation)?

Accepted Answer

A)  glycerol 
B)  pyruvate 
C)  acetyl-CoA 
D)  triacylglycerol 
A)  glycerol 
B)  pyruvate 
C)  acetyl-CoA 
D)  triacylglycerol

Question 13

Polymolecular aggregates called micelles are small enough to _____.

Accepted Answer

A)  enter the enterocytes 
B)  stabilize circulating lipoproteins in the blood 
C)  enter the intramicrovillus spaces to interact with the brush border 
D)  confer specificity for recognition by receptors on cells 
A)  enter the enterocytes 
B)  stabilize circulating lipoproteins in the blood 
C)  enter the intramicrovillus spaces to interact with the brush border 
D)  confer specificity for recognition by receptors on cells

Question 14

Which of the choices listed below is NOT a reaction of the hepatocyte to an excess amount of free cholesterol?

Accepted Answer

A)  increase ACAT activity to store cholesterol 
B)  decrease HMG-CoA reductase activity 
C)  down-regulate the apoB-100/E receptors 
D)  decrease LPL activity 
A)  increase ACAT activity to store cholesterol 
B)  decrease HMG-CoA reductase activity 
C)  down-regulate the apoB-100/E receptors 
D)  decrease LPL activity

Question 15

Why might someone who is drunk have high blood lactate levels?

Accepted Answer

A)  High levels of NADH produced by ADH shift the direction of the lactate dehydrogenase reaction. 
B)  High levels of NADH produced by the MEOS stimulate lactate dehydrogenase activity. 
C)  Consuming calorie-yielding compounds and not providing enough oxygen to cells increases anaerobic respiration. 
D)  Reducing equivalents inhibit the synthesis of lactic acid and increase the synthesis of acetaldehyde. 
A)  High levels of NADH produced by ADH shift the direction of the lactate dehydrogenase reaction. 
B)  High levels of NADH produced by the MEOS stimulate lactate dehydrogenase activity. 
C)  Consuming calorie-yielding compounds and not providing enough oxygen to cells increases anaerobic respiration. 
D)  Reducing equivalents inhibit the synthesis of lactic acid and increase the synthesis of acetaldehyde.

Question 16

In the small intestine, which enzyme hydrolytically activates a pancreatic zymogen so that lipid digestion can occur?

Accepted Answer

A)  pepsin 
B)  trypsin 
C)  colipase 
D)  maltase 
A)  pepsin 
B)  trypsin 
C)  colipase 
D)  maltase

In what form is most body fat stored?

What are some products of the reaction catalyzed by pancreatic lipase?

Lp(a) is a genetic variant of _; its presence _ a genetic predisposition to heart disease.

153 28. All of the following are functions of apolipoproteins EXCEPT:

Which hormone is considered to be an antagonist of lipolysis?

Trans unsaturated fatty acids are now considered more atherogenic than saturated fatty acids because they

What is the most important unsaturated fatty acid serving as a precursor for eicosanoid synthesis?

Choose the correct sequential order for participants in lipid digestion.

Which enzyme will act on corn oil in the small intestine?

When fatty acids are completely oxidized the end products are:

The fatty acid chains found in foods and body tissues range from _____ carbon atoms in length.

What is formed when fatty acids are oxidized in the mitochondria (i.e., what is the end product of beta-oxidation)?

Polymolecular aggregates called micelles are small enough to _____.

Which of the choices listed below is NOT a reaction of the hepatocyte to an excess amount of free cholesterol?

Why might someone who is drunk have high blood lactate levels?

In the small intestine, which enzyme hydrolytically activates a pancreatic zymogen so that lipid digestion can occur?

The Cell: a Microcosm of Life

The Digestive System:mechanism for Nourishing the Body

Carbohydrates

Fiber

Protein

Integration and Regulation of Metabolismand the Impact of Exercise and Sport

Body Composition, Energy Expenditure, and Energy Balance

Water-Soluble Vitamins

Fat-Soluble Vitamins

Major Minerals

Water and Electrolytes

Essential Trace and Ultratrace Minerals

Nonessential Trace and Ultratrace Minerals

Filters

Exam 5: Lipids

In what form is most body fat stored?

What are some products of the reaction catalyzed by pancreatic lipase?

Lp(a) is a genetic variant of _____; its presence _____ a genetic predisposition to heart disease.

153 28. All of the following are functions of apolipoproteins EXCEPT:

Which hormone is considered to be an antagonist of lipolysis?

Trans unsaturated fatty acids are now considered more atherogenic than saturated fatty acids because they

What is the most important unsaturated fatty acid serving as a precursor for eicosanoid synthesis?

Choose the correct sequential order for participants in lipid digestion.

Which enzyme will act on corn oil in the small intestine?

When fatty acids are completely oxidized the end products are:

The fatty acid chains found in foods and body tissues range from _____ carbon atoms in length.

What is formed when fatty acids are oxidized in the mitochondria (i.e., what is the end product of beta-oxidation)?

Polymolecular aggregates called micelles are small enough to _____.

Which of the choices listed below is NOT a reaction of the hepatocyte to an excess amount of free cholesterol?

Why might someone who is drunk have high blood lactate levels?

In the small intestine, which enzyme hydrolytically activates a pancreatic zymogen so that lipid digestion can occur?

The Cell: a Microcosm of Life

The Digestive System:mechanism for Nourishing the Body

Carbohydrates

Fiber

Protein

Integration and Regulation of Metabolismand the Impact of Exercise and Sport

Body Composition, Energy Expenditure, and Energy Balance

Water-Soluble Vitamins

Fat-Soluble Vitamins

Major Minerals

Water and Electrolytes

Essential Trace and Ultratrace Minerals

Nonessential Trace and Ultratrace Minerals

Filters

Lp(a) is a genetic variant of _; its presence _ a genetic predisposition to heart disease.