If a biochemist discovers a new molecule, which of the following pieces of data would allow...

If a biochemist discovers a new molecule, which of the following pieces of data would allow her to draw the conclusion that the molecule is a protein hormone?

		The hormone has cell membrane receptors.
		The hormone travels through the bloodstream.
		The hormone has receptors in the nucleus.
		the hormone has an endocrine chemical signaling.

Expert Solution

Hormones are chemical messengers that enables the communication between cells. Hormones are secreted by the glands of the endocrine system.Hormones can be mainly classified in to two:a)Lipid soluble hormones,b)Water soluble hormones.

Water-soluble hormones are amines and proteins that do not passively diffuse through the cell membrane. For water-soluble proteins, the receptor will be at the plasma membrane of the cell. The ligand-bound receptor will trigger a cascade of secondary messengers inside the cell.

For lipid-soluble hormones, the receptor is typically located within the cytoplasm or nucleus of the cell.

Therefore from the given characteristics,the first one ie '"Hormone has a cell membrane receptor" indicate that it is a protein hormone

gladiator answered 2 years ago

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