Sapling Learning How does a signaling molecule present in lo

Sapling Learning How does a signaling molecule present in low concentrations cause a significant response in the cell? O intracellular receptors O protein phosphorylation O endocrine signaling O signal amplification o Previous c Ne up s view sa check Answer 0 Next Exit

Solution

signal amplification

secondary messengers play a major role in signal transduction. First, they are free to diffuse to other compartments of the cell, such as the nucleus, where they can influence gene expression. Second, the signal may be amplified significantly in the generation of second messengers. Enzymes or membrane channels are almost always activated in second-messenger generation; each activated macromolecule can lead to the generation of many second messengers within the cell. Therefore, a low concentration of signal in the environment, even as little as a single molecule, can yield a large intracellular signal and response.