Question

Gap junction channels gates are triggered by what two processes?

a) Voltage and ligand binding
b) pH change and mechanical stress
c) Temperature and osmotic pressure
d) Hormones and neurotransmitters

Answer 1

The correct option is a) voltage and ligand binding. Gap junction channels are gated primarily by voltage changes across the cell's membrane and the binding of specific ligands like neurotransmitters, which correspond to voltage and ligand binding as triggers.

Step-by-step explanation:

Gap junction channel gates are triggered by voltage and ligand binding. Voltage-gated channels open in response to changes in the electrical potential across the membrane, while ligand-gated channels open when they bind to a specific molecule or ligand.

In the case of gap junction channels, these channels allow for the direct transfer of ions and small molecules between adjacent cells. Gap junction channels are gated primarily by voltage changes across the cell's membrane and the binding of specific ligands like neurotransmitters, which correspond to voltage and ligand binding as triggers.