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Question

CCK and leukotrienes can be classified as

A
Endocrine hormone
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B
Exocrine hormone
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C
Local hormone
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D
Both A and B
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Solution

The correct option is C Local hormone
The local hormones are released by the nerve cells and the glands. These hormones act on the same cells as well as on the cells which are near to the location.
CCK (cholecystokinin) is released from the cells of the small intestine and act on the pancreas and gall bladder to release the bile and digestive enzymes. Leukotrienes are the molecules which are released by the cells like macrophages, mast cells and other immune cells in response to the pathogenic antigen. They are called as mediators which bind to the G protein-coupled receptors and influence the other cells to release the molecules to show the effect of swelling, redness, itching, etc.
Thus, the correct answer is option C.

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