Unlike many other sensory receptors, rods undergo signal transduction that causes the sensory cell to become hyperpolarized.
The process by which a cell responds to substances outside the cell by using signaling molecules on the surface and inside the cell.
Rods use G-protein cells for signal transmission (phototransduction). Consequently, the first option, which asserts that a G protein is not implicated, is false. Since rods do not fully go through a phototransduction cascade, the third hypothesis is also erroneous. This is a bad decision because secondary messengers in rods and other sensory receptors are also a part of the signal transduction process.
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