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5 Written questions

5 Matching questions

  1. protein
  2. Lysosomes (Eukaryotic cells)
  3. functional groups
  4. Levels of Organization
  5. hydrogen bonds
  1. a are parts of a molecule that participate in a chemical reaction
  2. b small nitrogen containing molecules, amino acids, are joined to form dipeptides which are joined to form polypeptides which may be joined to other polypeptides to from proteins. Proteins have unique 3 dimensional shapes or configurations that enable them to function as enzymes to catalyze reactions and function in other active ways.
  3. c hydrolytic enzymes are manufactured by the ER sent to the Golgi for finishing and repackaging in sacs called _________, ___________ merge with food vacuoles to digest food or destroy invading organisms -Abnormal __________ can cause diseases include Tay-Sachs - inability to break down lipids resulting in damage to nerves and brain
  4. d biosphere, ecosystem, community, population, organism, organ system, organs, tissues, cells, organelle, molecule, atom
  5. e 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

5 Multiple choice questions

  1. determine chemical properties of atoms = how it will react (bond) with other atoms
  2. Order, regulation, growth & development, energy processing, response to the environment, reproduction, evolutionary adaptation
  3. some atoms lose or gain electrons to form ions. attraction between ions of opposite charge form ionic bonds
  4. Primary structure = sequence of amino acids
    Secondary structure = coiling to form an alpha helix or folding to form a pleated sheet - hydrogen bonding may be involved
    Tertiary structure - Overall, 3 - D shape, usually described as fibrous or globular
    Quaternary structure - many proteins have multiple peptide chains or subunits - how these fit together is called quaternary structure
  5. 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

5 True/False questions

  1. fatforms our genes,

          

  2. Nucleus (Eukaryotic cells)larger vesicles, membranous sacs that help in digestion, storage, or water removal

          

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

          

  4. Isotopeselements with the same atomic number, different mass numbers.

          

  5. Lipidsthese are non-polar, hydrocarbons, which are composed of fat molecules. Fat = glycerol + fatty acid. _______ are 1) important components of cell membranes (phospho_______), 2) molecules (steroids) that regulate cell function, and 3) molecules (waxes) that protect other cells

          

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