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Of these two species which of them has a higher concentraton of cortisol within their blood?...

Of these two species which of them has a higher concentraton of cortisol within their blood? please answer for both questions. Thanks!

a) A human or a mouse?
b) A bear or a human?
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Answer #1

Solution

a) answer- human produces more cortisol(6 to 23 mcg/dl) than mouse

  • because mouse do not produce appreciable cortisol, because they lack the adrenocortical zona fasciculata enzyme 17-α hydroxylase.
  • But human has this enzyme to produce cortisol.

b) answer

  • Brown Bear produces more cortisol because hibernation cycles than humans.
  • Elevated serum cortisol during hibernation is thought to increase lipolysis necessary to provide energy and maintain the relatively elevated metabolic rate of bears during hibernation.
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