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5 Written questions

5 Matching questions

  1. degradative reactions
  2. chemical energy
  3. villi
  4. peristalsis
  5. autotrophs
  1. a organisms that obtain energy and nutrients from nonliving sources such as the Sun, minerals, and the air (e.g. plants, certain bacteria, organisms that capture energy from hyrodgen sulfide)
  2. b energy stored in the structure of organic molecules from which the organisms who store them are made
  3. c "breaking-down" reactions; type of metabolism
  4. d fingerlike projections of the small intestine that increase surface area for absoption of digested food
  5. e a process by which wavelike contractions of the muscles of the asophagus move food to the stomach

5 Multiple choice questions

  1. the breakdown of large pieces of food into smaller ones; increases surface area of food making chemical digestion easier
  2. the intermingling of substances by the natural movement of their particles
  3. a secretion of the liver stored in the gallbladder and released through a duct in the small intestine; breaks large fat droplets into smaller ones that enzymes can act on more efficiently
  4. a muscular tube connecting the oral cavity to the stomach
  5. an autotroph; any organism that produces its own food

5 True/False questions

  1. biosynthesis reactions"breaking-down" reactions; type of metabolism

          

  2. digestionthe process of taking food into the digestive tract

          

  3. energy conversion in a living thingliving systems can conserve and use some of the energy released in chemical reactions

          

  4. catalystsa microscopic blood vessel penetrating the tissue and consisting of a single layer of cells that allows exchange between blood and tissue fluids

          

  5. decomposerBacteria, fungi, and other heterotrophs break down and that lives on decaying organic material (dead plants, animals), from which it obtains energy and nutrients

          

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