Front

What do ligands do?

Back

Bind to receptors.

Front

What is an example of a ligand mentioned in the learning material?

Back

Neurotransmitters.

Front

What happens when ligand-gated ion channels open?

Back

Ions cross the cell membrane.

Front

What is the form of chemical signaling where a cell targets a distant cell through the bloodstream?

Back

Endocrine.

Front

What is the role of direct cell-to-cell contact in immune cells?

Back

It activates receptors on T cells.

Front

Define ligands in the context of cell communication.

Back

Molecules that bind to receptors to initiate a cellular response.

Front

What is the difference between autocrine and paracrine signaling?

Back

Autocrine signaling affects the same cell that releases the signal, while paracrine signaling affects nearby cells.

Front

What are neurotransmitters?

Back

Chemical messengers that transmit signals across a synapse from one neuron to another.

Front

What is the function of receptors in cell communication?

Back

Receptors are proteins that receive and respond to signaling molecules.

Front

Explain the concept of gap junctions in cell communication.

Back

Gap junctions are direct connections between adjacent cells that allow for the transfer of ions and small molecules.