WGU nutrition- macronutrient digestion Exam
Questions and Answers Review 2026
What does salivary amylase do? - Correct Answers Hydrolysis of starch into maltose and dextrin
What is a protein required for the protection and subsequent absorption of vitamin B12? -
Correct Answers Gastric intrinsic factor
What proenzyme is released by chief cells? - Correct Answers Pepsinogen
What intestinal substance hydrolyzes glyosidic linkages to form monosaccharides? - Correct
Answers Disaccharidases
What changes I active trypsinogen to trypsin? - Correct Answers Enterokinase
What controls bicarbonate ion release and secretion of enzymes from the pancreas? - Correct
Answers Secretin
What triggers the release of bile from the gallbladder? - Correct Answers Cholecystokinin
In addition to vitamins A, D, E, and K, what are the fat soluble substances? - Correct Answers
Cholesterol, dietary fat (triglycerides, fatty acids, etc)
, Which substances are transported through the lymphatic system? - Correct Answers Fatty acids,
cholesterol, chylomicrons
Where are the lacteals found? - Correct Answers In the villi of the small intestine
Which statements correctly describe facilitated diffusion? - Correct Answers It is a passive
transport method, It requires the aid of a protein in the membrane, It involves movement from
a higher nutrient concentration to a lower concentration.
What statements describe water absorption in the body? - Correct Answers Closely associated
with absorption of sodium, small intestine responsible absorbs most, most water remaining in
chyme is absorbed in the first half of colon
Which statement describes the absorption of fat into the lymphatic system? - Correct Answers
Chylomicrons leave the basement membrane of the enterocyte and enter the lacteals.
Chylomicrons exit the basement membrane and then enter the lacteals for transport via the
lymphatic system.
Order the steps that are required for the absorption and transport of dietary fat. - Correct
Answers Consumed fats are emulsified by bile in the small intestine to form micelles. Micelles
enter the enterocytes and the triglycerides are reassembled to form chylomicrons, which leave
the enterocyte and enter the lacteals. The lacteals deliver the fats to the lymphatic circulation.
Fats enter the venous system through the thoracic duct to be delivered to the liver and other
tissues.
Describe transport of fat soluble nutrients - Correct Answers Lipids are absorbed through
lacteals in the villi walls and released directly into the lymphatic system
What hormone is released to increase the catabolism of glycogen? - Correct Answers Glucagon
Questions and Answers Review 2026
What does salivary amylase do? - Correct Answers Hydrolysis of starch into maltose and dextrin
What is a protein required for the protection and subsequent absorption of vitamin B12? -
Correct Answers Gastric intrinsic factor
What proenzyme is released by chief cells? - Correct Answers Pepsinogen
What intestinal substance hydrolyzes glyosidic linkages to form monosaccharides? - Correct
Answers Disaccharidases
What changes I active trypsinogen to trypsin? - Correct Answers Enterokinase
What controls bicarbonate ion release and secretion of enzymes from the pancreas? - Correct
Answers Secretin
What triggers the release of bile from the gallbladder? - Correct Answers Cholecystokinin
In addition to vitamins A, D, E, and K, what are the fat soluble substances? - Correct Answers
Cholesterol, dietary fat (triglycerides, fatty acids, etc)
, Which substances are transported through the lymphatic system? - Correct Answers Fatty acids,
cholesterol, chylomicrons
Where are the lacteals found? - Correct Answers In the villi of the small intestine
Which statements correctly describe facilitated diffusion? - Correct Answers It is a passive
transport method, It requires the aid of a protein in the membrane, It involves movement from
a higher nutrient concentration to a lower concentration.
What statements describe water absorption in the body? - Correct Answers Closely associated
with absorption of sodium, small intestine responsible absorbs most, most water remaining in
chyme is absorbed in the first half of colon
Which statement describes the absorption of fat into the lymphatic system? - Correct Answers
Chylomicrons leave the basement membrane of the enterocyte and enter the lacteals.
Chylomicrons exit the basement membrane and then enter the lacteals for transport via the
lymphatic system.
Order the steps that are required for the absorption and transport of dietary fat. - Correct
Answers Consumed fats are emulsified by bile in the small intestine to form micelles. Micelles
enter the enterocytes and the triglycerides are reassembled to form chylomicrons, which leave
the enterocyte and enter the lacteals. The lacteals deliver the fats to the lymphatic circulation.
Fats enter the venous system through the thoracic duct to be delivered to the liver and other
tissues.
Describe transport of fat soluble nutrients - Correct Answers Lipids are absorbed through
lacteals in the villi walls and released directly into the lymphatic system
What hormone is released to increase the catabolism of glycogen? - Correct Answers Glucagon
