In order for a cell to receive and respond to a particular extracellular chemical signal, it must possess an appropriate _ that contains a specific binding site for the signal. Q) glycolipid neurotransmitter hormone ☐ receptor Question 16 The total amount of energy in the universe never changes.

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Cell Signaling

It allows cells to perform various cellular activities, coordinate, and interact with other cells. All cells of an organism receive signals from their environments and respond accordingly. Even the unicellular eukaryotes receive signals secreted by other cells and respond. In the case of yeast, mating takes place by signaling between the yeast cells. Communication by cell signaling in a multicellular organism has become a vast and important part of various fields of biology.