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Chapter 3

  1. Which functional group is composed of one N and two Hs? 




    A.  amino
  2. Which of these is/are structural proteins? 




    C.  cellulose  
  3. True or False:
    Polysaccharides are made by joining monosaccharides by dehydration synthesis.
    True
  4. Which type of lipid contains a glycerol backbone and three fatty acids? 



    A.  triglyceride
  5. True or False:
    Phospholipids contain a polar head group and a nonpolar tail.
    True
  6. True or False:
    Cholesterol is the precursor molecule for the steroid hormones.
    True
  7. How many unique proteins can be made from a chain of amino acids that is 3 amino acids long? 




    D.  8,000
  8. Which of these components is the same in every amino acid? 






    E.  b, c, & d  
  9. In which structural level do the R groups of amino acids interact to cause folding? 



    B.  tertiary
  10. Which molecule is the energy currency of cells? 
    a. carbohydrates  
    b. lipids  
    c. proteins  
    d. DNA  
    e. ATP
     e. ATP
  11. True or False:
    DNA and RNA contain the same sugar.
    False
  12. understand the importance of carbon as the elemental backbone of organic molecules
    A carbon atom needs to fill 4 bonds to fill its valence shell. This means that carbon can make 4 bonds with other atoms. Because of this property, carbon provides a good structural framework for many molecules.
  13. recognize the structure and properties of functional groups found in organic molecules
     Organic molecules are classified based on the functional groups attached to the main carbon framework of the molecules. The four main classes of organic molecules include: carbohydrates, lipids, proteins, and nucleic acids.
  14. Seven Functional Groups
    • hydroxyl group
    • carbonyl group
    • carboxyl group
    • amino group
    • sulfhydryl group
    • phosphate group
    • methyl group
  15. distinguish between monomers and polymers
    Polymers are made up of more than one monomers.
Author
Wiggles94
ID
200137
Card Set
Chapter 3
Description
Module 3: Learning Objectives •understand the importance of carbon as the elemental backbone of organic molecules •recognize the structure and properties of functional groups found in organic molecules •distinguish between monomers and polymers •describe dehydration synthesis and hydrolysis reactions •recognize the structure of carbohydrate monomers and polymers •give specific examples of carbohydrates and their functions, including examples of storage and structural carbohydrates •describe lipid structure and functions •recognize the importance of phospholipids and their structure •recognize the structure of protein monomers and polymers •know the various functions of proteins •describe the four levels of protein structure •understand the connection between protein shape and function •recognize the structure of nucleic acid monomers and polymers •recognize the connection between nucleic acids and proteins
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