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5 Written Questions

5 Matching Questions

  1. Levels of Protein structure
  2. protein
  3. Atomic Mass=...=...
  4. Golgi Apparatus (Eukaryotic cells)
  5. fat
  1. a = glycerol + fatty acid.
    are another source of energy but some may contribute to heart disease. Most plant __ are unsaturated oils and most animal __ are saturated.
  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 =Mass number=protons+ neutrons
  4. d 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. e receives packages such as transport vesicles on one side, modifies products, then repackages in new transport vesicles for other sites

5 Multiple Choice Questions

  1. these 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
  2. biosphere, ecosystem, community, population, organism, organ system, organs, tissues, cells, organelle, molecule, atom
  3. lack a membrane enclosed nucleus
    Nucleoid region, Ribosomes, Plasma membrane, Cell wall, Capsule, Pili, Flagella
  4. small RNA structures where proteins are manufactured
  5. found in plants and animals, chemical energy in food such as sugars is converted to an energy source useable in cells called ATP, ___________ have a membrane, an intermembrane space and matrix. Reactions take place in the matrix

5 True/False Questions

  1. cytoskeletonibers 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


  2. Ionic bondsstrong bonds where atoms share electrons - two or more atoms held together by a covalent bond are called a molecule


  3. functional groupssome atoms lose or gain electrons to form ions. attraction between ions of opposite charge form ionic bonds


  4. Vacuoles (Eukaryotic cells)houses chromosomes (DNA + chromatin - protein), and nucleolus - site of ribosome parts assembly, in an membrane = nuclear envelope


  5. Nucleus (Eukaryotic cells)houses chromosomes (DNA + chromatin - protein), and nucleolus - site of ribosome parts assembly, in an membrane = nuclear envelope


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