Wgu d322 introduction to it final exam review with 100 verified solutions 2023

WGU - D313 - Anatomy and Physiology 2 Digestive System Practice Tes
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1. Where does intrinsic factor occur?: parietal cell
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2. Which of the following stored feces prior to defecation?: rectum
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3. Which of the following stores and concentrates bile?: duodenum
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4. In what order from shortest to longest are the parts of the intestine?: duo-
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denum, jejunum, ileum
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5. What is the substrate of salivary amylase?: polysaccharides
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6. Which hormone induces a watery secretion of bicarbonate from the pan-
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creas?: secretin
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7. What is the name of the digestive organ in which major absorption of water
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occurs?: large intestine G G


8. Which substances reach the systemic circulation via lymph postabsorp-
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tion?: lipids
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9. Where is chemical digestion initiated in the alimentary canal?: oral cavity
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10. Which layer of the stomach secretes mucus and is called the mucus
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membrane?: mucosa G


11. What is the sequence of the digestive process?: ingestion, digestion, absorp-
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tion, defecation
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12. Which enzyme catalyzes the disassociation of carbonic acid into hydrogen
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and bicarbonate ions?: carbonic anhydrase
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13. Which of the following are ways in which carbon dioxide is transported int
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he blood?: all of the above
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14. As increasing amounts of carbon dioxide enter the blood, bicarbonate ions
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begins to accumulate within the red blood cells. As the concentration gradienti
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s established, bicarbonate ions move out of the red blood cells and into thebl
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ood plasma. The electrical balance between the blood plasma and red bloodce
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lls must be maintained; therefore, as one bicarbonate ion moves into the plas
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ma, so one negatively charged ion moves into a red blood cell from the plas
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ma. Which ion moves into the blood cell?: chloride
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15. Which statement is true about carbohydrates?: they provide glucose that is
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converted to energy G G


16. Which statement is true about fat? Choose 2 answers: it provides nine
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calories per gram G G


it produces hormones
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17. Which food type is a source of carbohydrates?: vegetables
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18. Which element is a macronutrient?: protein
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19. Which macronutrient supplies amino acids to the body when the macronu-
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trient breaks down?: protein
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, WGU - D313 - Anatomy and Physiology 2 Digestive System Practice Tes
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20. The U.S. Department of Agriculture provides nutrition guidelines throughi
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ts MyPlate.gov guide. Which section in MyPlate has the highest percentage?-
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: vegetablesG


21. A lack of which macronutrients can cause muscle wasting?: protein
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22. The deficiency of which vitamin causes scurvy?: vitamin C
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23. Which fat soluble vitamin is manufactured by the human body by exposuret
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o sunlight?: vitamin D
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24. What is a function of vitamin A?: aids in maintaining a clear cornea
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25. Deficiencies of which 2 minerals can cause heart arrhythmias?: magne-
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sium
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calcium
26. Which food item is rich in vitamin B1 (Thiamine)?: grains
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27. Which food item is rich in vitamin D?: dairy products
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28. Which disease is caused by the deficiency of vitamin cyanocabalamin?: -
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pernicious anemia G


29. Which organ is involved in the absorption of micronutrients?: small intes-
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tine
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30. Which foods are a source of water- G G G G G G


soluble vitamins?: tomatoeseggs G G G


31. What is the final step in the digestion process?: defecation
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32. What is the function of accessory organs?: break down nutrients
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33. Which structure is part of the alimentary canal?: stomach
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34. Which digestive function is accomplished by the teeth?: mechanical diges-
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tion
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35. What is the first step in the digestion process?: ingestion
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36. Which term defines assimilation of nutrients into the blood and lymph?: -
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absorption
37. Which salivary gland lies within the cheeks?: parotid
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38. What is the main component of saliva?: water
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39. Which structure forms the anterior border of the oral cavity?: lips
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40. Which mastication muscle elevates and retracts the mandible?: temporalis
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41. Which part of the pharynx is the most superior?: nasopharynx
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42. In which part of the pharynx does air and food get mixed?: oropharynx
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43. Which description matches the lower esophageal sphincter?: formed by a
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portion of the diaphragm G G G


44. Which phase of swallowing involves the contraction of the longitudinall
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ayer of the muscularis?: esophageal phase
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45. What is the role of the epiglottis?: prevents food from entering trachea when
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eating
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