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linasottile linasottile
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6 years ago
Energy metabolism in the heart is characterized by all of the following EXCEPT:
 
  a. the preferred fuel is fatty acids.
  b. it has minimal energy reserves.
  c. it is unusually rich in mitochondria.
  d. the heart consumes over 90 of the total oxygen supply during maximal physical exertion.
  e. the range of activity is much less than that in muscle (200 fold).
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6 years ago
ANSWER: d
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