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5 Written questions

5 Matching questions

  1. catalyst
  2. pioneer species
  3. pollution
  4. cell membrane
  5. trophic level
  1. a Release of harmful materials into the environment
  2. b feeding level in an ecosystem
  3. c substance that speeds up the rate of a chemical reaction; like an enzyme
  4. d first species to populate an area during primary succession
  5. e The lipid bilayer that forms the outer boundary of the cell

5 Multiple choice questions

  1. a behavior an animal learns from its parents
  2. The reactant on which an enzyme works.
  3. a mature fertilized plant ovule consisting of an embryo and its food source and having a protective coat
  4. study of multicellular organisms as they develop from fertilized eggs to fully formed organisms
  5. the different forms of a gene; could be dominant or recessive

5 True/False questions

  1. glycolysisfirst step in releasing the energy of glucose, in which a molecule of glucose is broken into two molecules of pyruvic acid.


  2. selectively permeablea property of cell membranes that allows some substances to pass through, while others cannot


  3. photosynthesisdiffusion of water through a selectively permeable membrane


  4. vaccinemacromolecule that contains carbon, hydrogen, oxygen, and nitrogen; needed by the body for growth and repair and to make up enzymes


  5. speciesthe vascular tissue through which food moves in plants