ANIMAL PHYSIOLOGY
CHEMICAL SIGNALS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The neighboring cell must have the right receptor to receive the signal.
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The chemical signal must bind to hormones on the neighboring cells.
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The neighboring cells must be able to absorb the chemicals through diffusion.
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The same chemical signal must be produced within the neighboring cells.
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Detailed explanation-1: -The chemical signal must bind to hormones on the neighboring cells.
Detailed explanation-2: -Paracrine signaling Often, cells that are near one another communicate through the release of chemical messengers (ligands that can diffuse through the space between the cells). This type of signaling, in which cells communicate over relatively short distances, is known as paracrine signaling.
Detailed explanation-3: -Chemical signals between cells are called ligands. A ligand is a molecule that binds another specific molecule. In the case of cell signaling, the ligand binds a receptor, a protein in or on the target cell. Examples of ligands include hormones and neurotransmitters.
Detailed explanation-4: -In paracrine signaling, a molecule released by one cell acts on neighboring target cells. An example is provided by the action of neurotransmitters in carrying signals between nerve cells at a synapse.
Detailed explanation-5: -Which of the following must occur for the communication to be successful? The neighboring cell must have the right receptor to receive the signal.