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WGU NUTRITION- MACRONUTRIENT DIGESTION EXAM QUESTIONS WITH COMPLETE ANSWERS $12.49   Add to cart

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WGU NUTRITION- MACRONUTRIENT DIGESTION EXAM QUESTIONS WITH COMPLETE ANSWERS

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  • WGU NUTRITION
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  • WGU NUTRITION

WGU NUTRITION- MACRONUTRIENT DIGESTION EXAM QUESTIONS WITH COMPLETE ANSWERS

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  • August 31, 2024
  • 6
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • WGU NUTRITION
  • WGU NUTRITION
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WGU NUTRITION- MACRONUTRIENT
DIGESTION EXAM QUESTIONS WITH
COMPLETE ANSWERS
What does salivary amylase do? - Answer-Hydrolysis of starch into maltose and dextrin

What is a protein required for the protection and subsequent absorption of vitamin B12?
- Answer-Gastric intrinsic factor

What proenzyme is released by chief cells? - Answer-Pepsinogen

What intestinal substance hydrolyzes glyosidic linkages to form monosaccharides? -
Answer-Disaccharidases

What changes I active trypsinogen to trypsin? - Answer-Enterokinase

What controls bicarbonate ion release and secretion of enzymes from the pancreas? -
Answer-Secretin

What triggers the release of bile from the gallbladder? - Answer-Cholecystokinin

In addition to vitamins A, D, E, and K, what are the fat soluble substances? - Answer-
Cholesterol, dietary fat (triglycerides, fatty acids, etc)

Which substances are transported through the lymphatic system? - Answer-Fatty acids,
cholesterol, chylomicrons

Where are the lacteals found? - Answer-In the villi of the small intestine

Which statements correctly describe facilitated diffusion? - Answer-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? - Answer-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? - Answer-
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. -
Answer-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 - Answer-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? - Answer-Glucagon

What is glycogenolysis? - Answer-Release of glucose from glycogen

What is glycolysis? - Answer-Catabolism of glucose to release ATP

What are the end products of the electron transport chain? - Answer-ATP and water

Describe anabolic processes - Answer-Acetyl-coA is used to make fats, amino acids
become polypeptides, formation of glycogen from glucose molecules

Describe glycogenesis - Answer-An anabolic pathway that is stimulated by insulin.
Promotes glucose conversion into glycogen for storage in the liver and muscle cells.
The process by which a polysaccharide is built from a monosaccharide. Glycogen is a
polysaccharide. Glucose is a monosaccharide.

What differentiates gluconeogenesis from glycogenesis? - Answer-Gluconeogenesis
uses noncarbohydrate sources where glycogenesis uses glucose molecules

What is gluconeogenesis? - Answer-Process of building new glucose molecules from
noncarbohydrate sources

What are the other names of the Krebs cycle? - Answer-TCA cycle, citric acid cycle

Where does the citric acid cycle take place? - Answer-It takes place in the mitochondria

What does tCA cycle make? - Answer-Carbon dioxide and ATP

What happens to nicotinamide adenine dinucleotide in TCA cycle? - Answer-NAD is
converted to reduced nicotinamide adenine dinucleotide NADH to be used in the
electron transport chain to generate more energy for the cell

How is catabolism involved in producing ATP? - Answer-It breaks down complex
molecules to be used in TCA cycle and electron transport chain. The final product is the
generation of energy primarily in the form of ATP

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