General ---------Biology----------------------------------------------------- ------------------Online------------------------------wilcox@sunline.net Ch. 6  Metabolism of carbohydrates, fats, proteins, nucleic acids

Correct statements regarding ATP include:

     I.    ATP (adenosine triphosphate) serves as the main energy shuttle
           in cells.
     II.   ATP drives reactions in the cell by the enzymatic
           transfer of the phosphate group to energize specific reactants.
     III.  The regeneration of ATP from ADP and phosphate is an
           endergonic reaction.

     a. I only
     b. II only
     c. III only
     d. I and III only
     e. I, II and III

ATP generally energizes a cellular process by
     a. releasing heat upon hydrolysis.
     b. acting as a catalyst.
     c. direct chemical transfer of a high energy electron in a phosphate group.
     d. releasing ribose electrons to drive reactions.
     e. emitting light flashes.

Why is ATP an important molecule in metabolism?
     a. It has high energy phosphate bonds.
     b. Its high energy phosphate bonds (electrons) are easily made and broken.
     c. Its hydrolysis is endergonic.
     d. It is readily obtained from an organism's environment.
     e. It is extremely stable.

If an analogy were drawn concerning ATP, ATP would be most
     like a
     a. a burning candle.
     b. $10 bill.
     c. rechargeable battery.
     d. five pound gold bar.
     e. water behind a dam.

answers