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5 Written questions

5 Matching questions

  1. fatty acid
  2. ribose
  3. protein
  4. peptide bond
  5. polypeptide
  1. a A three-dimensional biological polymer constructed from a set of 20 different monomers called amino acids
  2. b A polymer (chain) of many amino acids linked together by peptide bonds
  3. c the covalent bond between two amino acid units, formed by condensation synthesis
  4. d a long carbon chain carboxylic acid. fatty acids vary in length and in the number and location of double bonds; three fatty acids linked to a glycerol molecule form fat
  5. e The sugar component of RNA

5 Multiple choice questions

  1. One form of the secondary structure of proteins in which the polypeptide chain folds back and forth, or where two regions of the chain lie parallel to each other and are held together by hydrogen bonds
  2. A reaction in which two molecules become covalently bonded to each other through the loss of a small molecule, usually water; also called dehydration reaction
  3. a nitrogenous base that has a double-ring structure; one of the two general categories of nitrogenous bases found in DNA and RNA; either adenine or guanine
  4. A structural polysaccharide of cell walls, consisting of glucose monomers joined by b-1, 4-glycosidic linkages
  5. A polymer (polynucleotide) consisting of many nucleotide monomers; serves as a blueprint for proteins and, through the actions of proteins, for all cellular activities. The two types are DNA and RNA

5 True/False questions

  1. amino acidAn organic molecule possessing both carboxyl and amino groups. Amino acids serve as the monomers of proteins

          

  2. lipidOne of a family of compounds, including fats, phospholipids, and steroids, that are insoluble in water

          

  3. disaccharideA double sugar, consisting of two monosaccharides joined by dehydration synthesis

          

  4. hydrolysisA three-dimensional biological polymer constructed from a set of 20 different monomers called amino acids

          

  5. chitinA structural polysaccharide of an amino sugar found in many fungi and in the exoskeletons of all arthropods