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Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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A cell releases a ligand that travels through the extracellular matrix to a nearby target cell. There, the ligand binds to a receptor on the target cells membrane. This is an example of _______ signaling using a _______ ligand.

		paracrine ; hydrophobic
		paracrine ; hydrophillic
		endocrine ; hydrophobic
		endocrine ; hydrophillic
		autocrine ; hydrophobic
		autocrine ; hydrophillic

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Introduction :-

The ability of cells to communicate through chemical signals originated in single cells and was in essential for the evolution of multicellular organisms.
Cells send and receive chemical messages constantly to coordinate the actions of distant organs, tissues, and cells.
Cells communicate via various types of signalling that allow chemicals to travel to target cells in order to elicit response.

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