Select two: Which type of signaling is characterized by cells needing to be in direct contact with each other?Group of answer choicesJuxtacrine signalingEndocrine signalingSynaptic signalingDirect exchange of cytosolic componentsParacrine signaling
Question
Select two: Which type of signaling is characterized by cells needing to be in direct contact with each other?Group of answer choicesJuxtacrine signalingEndocrine signalingSynaptic signalingDirect exchange of cytosolic componentsParacrine signaling
Solution
The two types of signaling characterized by cells needing to be in direct contact with each other are:
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Juxtacrine signaling: This type of cell signaling requires direct contact between the signaling and responding cells. This is often mediated by membrane-bound proteins on the surface of the cells.
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Direct exchange of cytosolic components: This also requires direct contact. It involves the transfer of cytosolic components from one cell to another, often through gap junctions or other direct connections.
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