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Eating and Nutrition

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  • Obtaining nutrients involves the physical and chemical decomposition of _______
    food
  • The nutrition function involves several systems in order to obtain necessary nutrients.. The substances it uses are...
    water, oxygen, and nutrients
  • saliva acts on ________
    starch
  • catabolic reactions degrade complex substances into ________ ones.
    simpler
  • The circulatory system distributes nutrients and _________ throughout the body ....
    oxygen
  • the set of chemical reactions that produce the matter and energy that cells need is....
    cell metabolism
  • anabolic reactions transform ________ substances into more _______ ones.
    simple, complex
  • The human digestive tract is about _________ meters long
    11
  • of the pancreatic juices, _______ are the ones that act on nucleic acids
    nucleases
  • the most important digestive enzymes act on complex molecules in ______
    food
  • digestive enzymes are a type of ________ that accelerate food decomposition
    protein
  • stomach ________ are so powerful that the protection of the stomach mucosa needs to be renewed twice a month
    acids
  • amylase breaks down starch and produces _______
    simple carbohydrates
  • The urinary system filters the _____ and expels the waste produced in cell chemical reactions.
    blood
  • of the pancreatic juices, _____ are the ones that act on lipids
    lipases
  • When the digestive system extracts nutrients from food and absorbs them, it's called
    digestion
  • the ________ takes oxygen from the air and expels carbon dioxide and water vapor
    respiratory system
  • bile dissolves ______
    fats
  • the full digestion of food can last from 9 hours to over ______ day(s)
    1
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