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The living bacteria found in yogurt are known as


A) probiotics.
B) prebiotics.
C) postbiotics.
D) zymobiotics.

E) B) and C)
F) All of the above

Correct Answer

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What is the primary site for absorption of nutrients?


A) Crypt
B) Villus
C) Microvillus
D) Macrovillus

E) None of the above
F) A) and B)

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How many sphincters does the anus contain?


A) 1
B) 2
C) 3
D) 4

E) A) and D)
F) B) and C)

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During digestion of a meal,how many times does the pyloric sphincter open in 10 minutes time?


A) 1
B) 5
C) 10
D) 20

E) C) and D)
F) All of the above

Correct Answer

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During the process of digestion,at what point does the stomach begin to release chyme?


A) When the fluid to solid ratio is 3 to 1
B) When the chyme is liquefied
C) Within 15 minutes of gastrin release
D) Within 5 to 10 minutes of starting a meal

E) A) and B)
F) A) and C)

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What is the most metabolically active organ?


A) Liver
B) Spleen
C) Stomach
D) Pancreas

E) None of the above
F) C) and D)

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What is the function of mucus in the stomach?


A) Emulsifies fats
B) Neutralizes stomach acid
C) Activates pepsinogen to pepsin
D) Protects stomach cells from gastric juices

E) C) and D)
F) B) and D)

Correct Answer

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What part of the GI tract prevents a person from choking while swallowing?


A) Mouth
B) Epiglottis
C) Pyloric sphincter
D) Upper esophageal sphincter

E) B) and C)
F) A) and D)

Correct Answer

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Which of the following nutrients requires the least amount of digestion?


A) Starch
B) Calcium
C) Animal fats
D) Animal proteins

E) C) and D)
F) A) and D)

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Which of the following is NOT produced from colonic fermentation of certain fibers?


A) Gas
B) Water
C) Secretin
D) Small fat fragments

E) C) and D)
F) None of the above

Correct Answer

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A solution with a pH of 7 is how many times more alkaline than one with a pH of 6?


A) 1
B) 5
C) 10
D) 100

E) A) and B)
F) B) and C)

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Which of the following is NOT a major cause of ulcer formation?


A) Bacterial infection
B) Excessive use of antacids
C) Excessive gastric acid secretion
D) Use of certain anti-inflammatory medicines

E) A) and D)
F) B) and C)

Correct Answer

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Which of the following is NOT a function of hydrochloric acid in digestion/absorption?


A) It kills bacteria
B) It activates pancreatic lipase
C) It activates a proteolytic enzyme
D) It promotes hydrolysis of dietary protein

E) A) and C)
F) None of the above

Correct Answer

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Immediately after absorption,what circulatory system carries the fat-soluble vitamins and large fats?


A) Vascular
B) Mesenteric
C) Lymphatic
D) Enterohepatic

E) A) and C)
F) C) and D)

Correct Answer

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All of the following dietary measures are known to help relieve constipation EXCEPT


A) eating fiber.
B) eating prunes.
C) eating less fat.
D) drinking more water.

E) C) and D)
F) B) and D)

Correct Answer

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When alcohol and barbiturates are ingested,they are absorbed from the gastrointestinal tract and transported first to the


A) liver.
B) heart.
C) spleen.
D) kidneys.

E) A) and B)
F) A) and C)

Correct Answer

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What is intestinal ischemia?


A) Reduced blood flow to the intestines
B) Chronic episodes of reverse peristalsis
C) Construction of intestinal lymph supply
D) Inflammation of two or more sphincter muscles

E) None of the above
F) B) and D)

Correct Answer

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Which of the following describes the anatomy of the gastrointestinal tract?


A) A vat-like vessel
B) A rigid,solid tunnel
C) A flexible muscular tube
D) A firm,duct-like channel

E) B) and C)
F) A) and D)

Correct Answer

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What vessel carries blood from the liver to the heart?


A) Aorta
B) Hepatic vein
C) Thoracic duct
D) Hepatic portal vein

E) A) and D)
F) A) and C)

Correct Answer

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Which of the following is NOT an effective therapy for constipation?


A) Increasing water intake
B) Decreasing fiber intake
C) Increasing physical activity
D) Responding promptly to the defecation signal

E) A) and B)
F) B) and D)

Correct Answer

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Showing 21 - 40 of 155

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