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5 Written questions

5 Matching questions

  1. primary structure
  2. receptor
  3. condensation reaction
  4. fibrous
  5. deoxyribose
  1. a the sugar connected to DNA; has one less oxygen atom than the other sugar associated with nucleic acids
  2. b the shape of proteins that are long and fiber-like
  3. c when two monomers connect to each other by a reaction in which two molecules are covalently bonded to each other through a loss of a molecule
  4. d the unique structure of amino acids; example: a polypeptide composed of 127 amino acids has 20^127 different ways it can be organized
  5. e the type of protein that helps a cell respond to chemical stimuli; example: receptors built into the membrane of a nerve cell detect chemical signals released by other nerve cells

5 Multiple choice questions

  1. the type of protein that stores amino acids; example: ovalbumin is the protein of egg white, used as an amino acid source for developing embryos
  2. organic molecules possessing both carboxyl and amino groups
  3. a nucleic acid that directs the production of polypeptides; this is found in the cells' ribosomes
  4. molecules with a general formula of some multiple of the unit CH2O; these are major nutrients as carbon skeletons serve as raw material for synthesis of other organic molecules
  5. protein molecules that assist in the proper folding of other proteins; they do not specify the final structure of a protein, instead they keep the new polypeptide separated from "bad influences" in the cytoplasmic environment while it folds

5 True/False questions

  1. quaternary structurethe unique structure of amino acids; example: a polypeptide composed of 127 amino acids has 20^127 different ways it can be organized

          

  2. enzymaticspecialized macromolecules that speed up chemical reactions in cells; considered proteins

          

  3. lipidan important structural polysaccharide used by arthropods to build their exoskeletons; pure forms of this are leathery and flexible, but they harden when encased within calcium carbonate

          

  4. monomersrepeating units that serve as building blocks of a polymer; smaller molecules; some also have functions on their own

          

  5. macromoleculesa sugar (monosaccharide) or one of its dimers (disaccharides) or polymers (polysaccharides)

          

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