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5 Written questions

5 Matching questions

  1. disaccharide
  2. amino acids
  3. quaternary structure
  4. monosaccharides
  5. secondary structure
  1. a molecule that consists of two monosaccharides joined by a glycosidic linkage
  2. b 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
  3. c the overall protein structure that results from the gathering of polypeptide subunits; some proteins consist of 2 or more polypeptide chains combined into one macromolecule
  4. d organic molecules possessing both carboxyl and amino groups
  5. e the collection of coils and folds that result from hydrogen bonds between repeating constituents of the polypeptide backbone (not the amino acid sides)

5 Multiple choice questions

  1. the type of protein that transports other substances; example: hemoglobin, the iron-containing protein of vertebrate blood, transports oxygen from lungs to other parts of the body
  2. a double-stranded, helical nucleic acid molecule consisting of nucleotide monomers with a deoxyribose sugar and the nitrogenous bases adenine, guanine, cytosine, and thymine; it is capable of replicating and determining the inherited structure of a cell's proteins
  3. the shape of proteins that are long and fiber-like
  4. a type of nucleic acid consisting of nucleotide monomers with a ribose sugar and nitrogenous bases adenine, cytosine, guanine, and uracil; usually single-stranded; functions in protein synthesis, gene regulation, and as the genome of some viruses
  5. the monomer of nucleic acids that has three parts: 1) a nitrogenous base (A, C, G, T, U); 2) a give-carbon sugar (a pentose); 3) a phosphate group

5 True/False questions

  1. unsaturated fata fat made from unsaturated fatty acids; they are liquid at room temperature (oils) because kinks in -cis bonding prevent molecules from packing together to solidify


  2. catalystsa 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


  3. denaturationthe unraveling and loss of a protein's native shape due to alterations of its environment, such as pH, salt concentration, and temperature; this causes a protein to become biologically inactive


  4. polymerspecialized macromolecules that speed up chemical reactions in cells; considered proteins


  5. condensation reactionwhen 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