Chemical signaling is when cells receive and process signals relating to their environment. The main purpose for this is to send chemicals between different cells and for sending molecules between different enzymes.
Cell signaling is also mainly used when prokaryotes use receptors outside the cell membrane to locate food. Most specialized cells use this for skin cells responding to touch or cells in the vascular system responding to blood pressure.
Cells have protein receptors that correspond/bind to whatever molecule they're supposed to receive, so nerve growth factor receptors will bind to nerve growth factors, insulin receptors bind to insulin,etc. Receptors are normally located outside the cell, but many are found inside. Other receptors are inside the nucleus,which typically respond to molecules that pass through the cell membrane.
When a receptor gets a signal, it creates a lot of biochemical reactions that create multiple response signals. This can also create molecules to act as secondary messengers that can connect signals. The most common type of secondary messenger is cyclic AMP (cAMP) that is synthesized from ATP. Other messengers can be created from phospholipase.
When a receptor gets a signal, it creates a lot of biochemical reactions that create multiple response signals. This can also create molecules to act as secondary messengers that can connect signals. The most common type of secondary messenger is cyclic AMP (cAMP) that is synthesized from ATP. Other messengers can be created from phospholipase.