You are studying a species of ground squirrel that hibernates and you want to de

Question

You are studying a species of ground squirrel that hibernates and you want to determine if nitrogen is salvaged in the same way it is salvaged in bears. You feed the ground squirrels a stable isotope of nitrogen-labeled food. Where would you look for the labeled nitrogen during hibernation?

A) in ammonia released into the hibernating den

B) in NH4+ in the blood of the ground squirrel

C) in proteins in the bacteria in the intestine of the ground squirrel

D) in urea in liver mitochondria of the ground squirrel

E) in NH4+ in the liver mitochondria of the ground squirrel

Explanation / Answer

Answer:

B) in NH4+ in the blood of the ground squirrel

Nitrogen in the form of ammmonia or urea are measured during the hibernation.Nitrogen in the form of urea accumulated in the blood during the HIbernation

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