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As a child becomes malnourished,the absorptive surface of the small intestine responds in which of the following ways?


A) It increases in size.
B) It becomes more efficient at its job.
C) It decreases in size.
D) It stays the same size.

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Timing of meals is important because the digestive tract is unable to digest food at certain times.

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How is it that a person can eat when hunger is absent?


A) The stomach intensifies its contractions and creates hunger pangs.
B) The conscious mind of the cortex can override body signals.
C) The digestive tract sends messages to the hypothalamus.
D) The hypothalamus anticipates the availability of nutrients.

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Which of the following cells replace themselves whenever repairs to the organ are required?


A) liver
B) heart
C) brain
D) red blood

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What should you do to alleviate heartburn?


A) Drink liquids during meals.
B) Wear tight clothing.
C) Eat smaller meals.
D) Lie down after meals.

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Which of the following types of cells do NOT reproduce and are lost forever if damaged by injury or disease?


A) red blood cells
B) muscle cells
C) brain cells
D) skin cells

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Which of the following provides the digestive tract with the bulk against which the muscles of the colon can work?


A) water
B) fibre
C) nutrients
D) energy

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The stomach's main function is the digestion of what nutrient?


A) carbohydrate
B) fat
C) fibre
D) protein

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MATCHING Match the digestive organs with their appropriate functions. a.manufacturers bile to help digest fats b.conducts bile into the small intestine c.opens to allow elimination d.churns,mixes,and grinds food to liquid mass e.reabsorbs water and minerals f.stores bile until needed g.passes food to the stomach h.manufactures enzymes to digest all energy-yielding nutrients i.chews and mixes food with saliva j.stores waste prior to elimination k.secretes enzymes that digest carbohydrate,fat,and protein -esophagus

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Differentiate between the mechanical and chemical aspects of digestion.

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The digestive tract moves food through i...

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What are the recommended limits for the consumption of alcohol for the average-sized healthy man and woman?


A) 14 drinks for a man and 9 drinks for a woman
B) 15 drinks for a man and 9 drinks for a woman
C) 16 drinks for a man and 9 drinks for a woman
D) 16 drinks for a man and 10 drinks for a woman

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Describe what happens to digestion and absorption in cases of severe undernutrition.

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The digestive system's millions of speci...

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What advice would you give to someone interested in improving her appetite with alcohol?

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Alcoholic beverages affect the appetite....

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What is the name for the hormone that is secreted when blood glucose is high?


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

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Describe what happens during the stress response and the possible consequences for people living in the modern world.

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The stress response is the body's instin...

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Which of the following statements about the timing of meals is the most accurate?


A) Timing of meals is important to feeling well.
B) Timing of meals is important because the digestive tract is unable to digest foods at certain times.
C) A meal should be consumed immediately before exercise to enhance physical work.
D) Eating a meal late at night is desirable because it facilitates sleep.

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How does alcohol affect body functions?


A) It strengthens the body's defences against infection.
B) It slows down the synthesis of fatty acids.
C) It alters amino acid metabolism.
D) It causes symptoms like those of cystic fibrosis.

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What is the name for the hormone that signals the pancreas to release pancreatic juice containing the alkaline compound bicarbonate?


A) pepsin
B) proteases
C) secretin
D) cholecystokinin

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On average,how often do the cells lining the digestive tract replace themselves?


A) every 3 days
B) every 2 weeks
C) every 4 months
D) every 12 months

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MATCHING Match the digestive organs with their appropriate functions. a.manufacturers bile to help digest fats b.conducts bile into the small intestine c.opens to allow elimination d.churns,mixes,and grinds food to liquid mass e.reabsorbs water and minerals f.stores bile until needed g.passes food to the stomach h.manufactures enzymes to digest all energy-yielding nutrients i.chews and mixes food with saliva j.stores waste prior to elimination k.secretes enzymes that digest carbohydrate,fat,and protein -pancreas

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