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5 Written questions

5 Matching questions

  1. cytoskeleton
  2. Vacuoles (Eukaryotic cells)
  3. Ionic bonds
  4. Levels of Organization
  5. Electrons
  1. a biosphere, ecosystem, community, population, organism, organ system, organs, tissues, cells, organelle, molecule, atom
  2. b larger vesicles, membranous sacs that help in digestion, storage, or water removal
  3. c ibers that run through the cell providing support, movement, anchorage and movement of organelles, 3 types - microfilaments, intermediate filaments, microtubules - the microtubule organizing center is called the centriole
  4. d some atoms lose or gain electrons to form ions. attraction between ions of opposite charge form ionic bonds
  5. e determine chemical properties of atoms = how it will react (bond) with other atoms

5 Multiple choice questions

  1. some molecules have charged areas - this makes them polar. Polar areas of molecules can bond with polar areas of other molecules to form weak bonds called hydrogen bonds, hydrogen bonds make water cohesive
  2. strong bonds where atoms share electrons - two or more atoms held together by a covalent bond are called a molecule
  3. molecules of carbon + hydrogen
  4. chain of carbon atoms in an organic molecule
  5. houses chromosomes (DNA + chromatin - protein), and nucleolus - site of ribosome parts assembly, in an membrane = nuclear envelope

5 True/False questions

  1. Elementsdetermine chemical properties of atoms = how it will react (bond) with other atoms


  2. fatforms our genes,


  3. RNAreads the genes and helps make proteins


  4. carbohydratessingle sugar units such as glucose (= a monosaccharide) are joined to form disaccharides such as maltose which can be joined to other sugars to form polysaccharides such as starch (plants) or glycogen (animals), cellulose is a large polysaccharide made by plants that is not easily broken down, chitin is a polysaccharide used by insects to build their exoskeleton - ________ are important sources of energy, and for building structures in plants and animals


  5. Prokaryotic Cellshave a membrane that surrounds nuclear material
    Components: Nucleus, Cytoplasm, Organelles, hydrophilic heads, hydrophobic tails,