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5 Written questions

5 Matching questions

  1. amino acids
  2. double helix
  3. disaccharide
  4. hydrolysis reaction
  5. RNA ribonucleic acid
  1. a contain the sugar ribose, has bases of adenine, guanine, uracil, and cytosine, single stranded
  2. b contains two monosaccharides that have joined during a dehydration reaction
  3. c components of water are added to degrade polymers
  4. d a double strand found in DNA. strands are held together by hydrogen bonds between bases
  5. e has a central carbon atom with a carboxyl group (COOH) at one end and an amino groupp at the other (NH2)

5 Multiple choice questions

  1. contain more energy per gram than other biological molecules and fats and oils function as energy storage molecules on organisms
  2. contain a phosphate group. costructed like fats except that in place of the third fatty acid, there is a polar phosphate group or a grouping that contains both phosphate and nitrogen
  3. a single chain of amino acids
  4. polysaccharide found in plant cell walls, and accounts for the strong nature of cell walls
  5. is a large molecule (macromolecule) composed of repeating structural units.

5 True/False questions

  1. organic moleculemolecules of life, always contain carbon and hydrogen

          

  2. peptide bondionic compounds are held together by an attraction between between negatively and positively charged ions called an ionic bond

          

  3. ioncontain more energy per gram than other biological molecules and fats and oils function as energy storage molecules on organisms

          

  4. enzymenecessary contributors to the chemical workings of a cell, they speed up chemical reactions

          

  5. polysaccharideif the number of carbon atoms in a molecule is low then a carbohydrate is a simple sugar