Biology

Last update by acpoist on 09/27/2011
155959 People have viewed this Quiz
  • Share

What are the two types of polysaccharides?

Answer:
-storage; STARCH is a storage polysaccharide of plants and glycogen of animals
-structural; serve as building material for structures protecting cells or whole organisms

View Biology as Flashcard Deck

Related Quiz Content
  • acpoist
    Answered in Biology
    What are the structure and function of a polysaccharide determined by?
    Its sugar monomers and the positions of its glycosidic linkages
  • acpoist
    Answered in Biology
    Since enzymes that digest starch by hydrolyzing alpha linkages cant hydrolyze beta linkages the cellulose in human food passes through the digestive tract as _______. ( a good thing)
    -insoluble fiber
  • acpoist
    Answered in Biology
    _____ is a structural polysaccharide found in the exoskeleton of arthropods. It also provides structural support for the cell walls of many _______.
    - Chitin
    - Fungi
  • acpoist
    Answered in Biology
    What is the one class of macromolecules that do not form polymers?
    -lipids
  • acpoist
    Answered in Biology
    What is the underlying feature of lipids? Why are they hydrophobic?
    - having little or no water
    - because they consists mostly of hydrocarbons, which form nonpolar covalent bonds
  • acpoist
    Answered in Biology
    What are the most biological important lipids?
    -fats- constructed from two types of smaller molecules (glycerol & fatty acids)
    -phospholipids- consists of two fatty acids and a phosphate group attached to a glycerol backbone
    -steroids- are lipids characterized by a carbon skeleton consisting of four fused rings
  • acpoist
    Answered in Biology
    What is glycerol? What does a fatty acid consist of?
    - a 3 carbon alcohol with a hydroxyl group attached to each carbon
    - consists of a carboxyl group attached to a long hydrocarbon tail
  • acpoist
    Answered in Biology
    What is a bond between a (-OH) and a (-COOH)?
    -an easter linkage
  • acpoist
    Answered in Biology
    What is the resulting molecule of an easter linkage connecting three fatty acids to glycerol?
    -triacylglycerol or triglyceride
  • acpoist
    Answered in Biology
    Why do fats separate from water?
    because water molecules form hydrogen bonds with each other and exclude the fats
  • acpoist
    Answered in Biology
    Saturated fatty acids have the _____ number of hydrogen atoms possible and no ______ bonds. Unsaturated fatty acids have ______ or more double bonds.
    -maximum and no double
    - one