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Amylose and amylopectin

  1. Jan 12, 2012 #1
    based on the statement~ '' Formation of amylose and amylopectin release energy.. ''
    and i was told tat this statement is incorrect..
    wat is meant by " formation of amylose and amylopectin " ? Is this a condensation of starch?
    if so,the process of condensation release energy, isn't it?? :confused:
  2. jcsd
  3. Jan 12, 2012 #2
    No, condensation reactions require energy.
  4. Jan 15, 2012 #3
    i m so sorry that i could not understand..
    condensation is a process to form bond between diff molecules to become an even more complex structure..
    so, bond formation release energy,isn't it?
  5. Jan 15, 2012 #4
    Yes but bonds are also broken in the process. A glycosidic linkage requires the net breaking of OH from one monomer and an H from an OH of the other.

    Btw, all bond formation does not release energy. An obvious example is ATP. ATP --> ADP + Pi releases energy because in ATP the covalent bond between the phosphates was strained due to like charge repulsion and there is also a net increase in entropy in ADP due to increased spatial randomization of the molecule.
  6. Jan 16, 2012 #5
    thank you so muc!!
    i have got what u were trying to explain to me..:smile:
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