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5 Written questions

5 Matching questions

  1. disaccharide
  2. tertiary structure
  3. condensation reaction
  4. messenger RNA
  5. unsaturated fatty acid
  1. a a fatty acid that has one or more double-bonded carbon atoms formed by the removal of hydrogen atoms from the carbon skeleton; there will be a kink in the hydrocarbon chain wherever a -cis double-bond occurs (causes bending)
  2. b the overall shape of a polypeptide that results from interactions between side chains of various amino acids
  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 molecule that consists of two monosaccharides joined by a glycosidic linkage
  5. e a nucleic acid that directs the production of polypeptides; this is found in the cells' ribosomes

5 Multiple choice questions

  1. a process that occurs when the bonds between two monomers are broken by the addition of water molecules, with a hydrogen from the water attaching to one monomer and a hydroxyl group attaching to the adjacent monomer
  2. a discrete unit of hereditary information consisting of a specific nucleotide sequence in DNA (or RNA, in some viruses)
  3. a sugar (monosaccharide) or one of its dimers (disaccharides) or polymers (polysaccharides)
  4. the type of protein that controls movement; example: actin and myosin are responsible for the contraction of muscles; other proteins are responsible for the undulations of cilia and flagella
  5. the sugar connected to RNA; has one more oxygen atom than the other sugar associated with nucleicacids

5 True/False questions

  1. nucleotidea polymer (polynucleotide) consisting of many nucleotide monomers; serves as a blueprint for proteins, and through the actions of proteins, for all cellular activities; two types are DNA and RNA


  2. amino acidsorganic molecules possessing both carboxyl and amino groups


  3. catalystschemical agents that selectively speed up chemical reactions without being consumed by the reaction; can be seen as workhorses that keep cells running by carrying out processes of life


  4. chaperoninsprotein 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. sickle-cell diseasean inherited blood disorder that is caused by a substitution of one amino acid (valine) for the normal amino acid (glutamic acid) at a particular position in the primary structure of hemoglobin, the protein that carries oxygen in red blood cells


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