Question

The hormone CCK is: 1) found in greater than normal amounts in genetically obese rats 2)...

The hormone CCK is:

1)

found in greater than normal amounts in genetically obese rats

2)

missing entirely in genetically obese rats

3)

about one-quarter the amount of normal in genetically obese rats

4)

the chief neurotransmitter in the pancreas
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Answer #1


So,the correct option to the question will be option 3.The explanation for the option 3 as correct choice has been explained in the picture above.

Because, option 1 states increase in amount which cannot be the case as increase in the hormone would decrease diet intake making the rat less obese.

Option 2 cannot be because complete absence will kill the rat as CCK hormone acts as neurotransmitter for CNS also ,without which surival would be critical.

Option 4 cannot be right as it is found in the central nervous system and peripheral nerves innervating the intestine. In these locations, CCK probably functions as a neurotransmitter.It acts as neurotransmitter in CNS and peripheral nerves,not in pancreas.

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