steroids
Signal amplification is when receptor proteins interact with molecules known as signal molecules. This makes the signals stronger so that things get done more quickly.
Signal molecules act as a neurotransmitter or a hormone, which both effect how a cell functions.
Low cholesterol can make a person more susceptible to cancer. Cholesterol is a major component of cell walls and being deficient in cholesterol can make it easier for cancer cells to get into cells. This is very over simplified. This could also signal a problem with your liver or a diet drastically devoid of cholesterol.
Receptor Proteins
receptors
Signal molecules can bind to specific receptors on the cell surface, which triggers a series of signaling events inside the cell. This can lead to changes in enzyme activity, gene expression, or cellular processes. The signal molecules do not need to enter the cell to create these changes as the signaling events are often propagated through complex cascades of cellular machinery.
Signal molecules 😂
neuron cells
A signal transduction is a really complicated process when a molecule signals to a receptor which then alters other molecules as a response to this. The signal can produce a wide variety of responses.
Hydrophobic signal molecules can interact with intracellular receptors, such as nuclear receptors and cytoplasmic receptors. These receptors are typically located inside the cell and can directly bind the hydrophobic signal molecules, leading to changes in gene expression and cellular function.
Before we attempt an Answer we need to know how many dozens of types of signal molecules exist in a Cell's cytoplasm.
No. The energy of the wave moves thru the molecules that carry it.