Question

If a hormone is released into the bloodstream so that it comes into contact with many cells, what determines which cells in the body respond to the hormone?

   If a hormone is released into the bloodstream so that it comes into contact with many cells, what determines which cells in the body respond to the hormone?

Biology: How Life Works

Biology: How Life Works

James Morris, Daniel… 3rd Edition

Chapter 9, Problem 3

Instant Answer

Solved by Expert Dr. Anas Syed

02/05/2022

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Hormones are chemical compounds that are released directly into the bloodstream. They travel through the bloodstream to their target sites, where they are recognized and produce a response. Show more…

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If a hormone is released into the bloodstream so that it comes into contact with many cells, what determines which cells in the body respond to the hormone?

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Key Concepts

Hormone Receptors

Hormone receptors are specialized proteins found on the surface or inside cells that bind to specific hormone molecules. The binding of a hormone to its receptor initiates a cascade of events within the cell, ultimately leading to a physiological response. The presence or absence of these receptors on cells is what makes certain cells responsive to the hormone while others remain unaffected.

Ligand-Receptor Specificity

Ligand-receptor specificity refers to the principle that a hormone (the ligand) will only bind to a receptor that has a complementary structure. This specificity ensures that only cells expressing the appropriate receptors will respond to the hormone, thus maintaining order and precision in cellular communication within the endocrine system.

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