The Digestive System – Flashcards

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question
What is the main function of digestion?
answer
breaking down food into forms that the body can use
question
The small intestine is the pathway for chyme. What else does it do?
answer
absorbs water, salt, and minerals using villi
question
What is the name of structure E in the image below?
answer
small intestine
question
Which system of the body breaks down food into forms that the body can use?
answer
digestive system
question
Which of the following structures are accessory structures of the digestive system?
answer
pancreas and liver
question
Which correctly lists all the structures that secrete lipase?
answer
pancreas, salivary glands, and stomach
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Imagine that a person has a disorder of the pancreas that does not allow it to secrete digestive enzymes. The breakdown of which macromolecule would be affected the most by this disorder?
answer
nucleic acids
question
Which statement best describes peristalsis?
answer
Peristalsis moves the food along the digestive tract.
question
Several instances of irregular digestion are listed in the table below. Condition Description Symptoms Heartburn Inability of the muscles at the end of the esophagus to close Burning sensation in throat Peptic ulcers An open wound in the lining of the stomach Sharp pain between chest and belly button, nausea Constipation Condition where a person has infrequent and uncomfortable bowel movements Infrequent bowel movements, nausea Lactose intolerance Inability to digest or break down the lactose in milk products Diarrhea, gas, nausea, and bloating Maria loves ice cream, but lately she has become aware that she feels nauseated after eating it. From which condition is Maria to suffering?
answer
lactose intolerance
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Maxwell is eating a plain chicken breast. Which enzyme is doing the most work?
answer
proteases
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Which substance helps the most in the digestion of food?
answer
enzymes
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Which of the following structures assist the major structures of the digestive system?
answer
pancreas, gall bladder, and salivary glands
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The digestive system contains a variety of parts that perform specific functions within the body. The small and large intestines have some similarities and some differences. Which function is only performed in the small intestine?
answer
mineral absorption
question
Which best differentiates between chemical digestion and mechanical digestion?
answer
Chemical digestion involves the breaking down of food with enzymes; mechanical digestion is breaking down food by chewing and tearing with teeth.
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