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Andrei [34K]
2 years ago
9

5

Biology
1 answer:
zubka84 [21]2 years ago
8 0

Answer:

C.

It controls the entry and exit of substances.

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C. is unstable, with a short half life

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Paracrine hormones are the hormones that act on neighboring cells only. These hormones or chemicals are largely unstable and have a brief life as do not visit the distantly placed target cells. For instance, somatostatin is secreted by D cells of the pancreas. It acts in a paracrine manner and inhibits the discharge of hormones from the neighboring beta and alpha cell.

Likewise, one of the functions of unstable NO gas is to serve as a vasodilator. It is released by epithelium cells and serves to dilate arterioles and relax precapillary sphincters. Then it is degraded.

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