What types of molecules can carry signals into the cell to a receport inside? what types of molecules cannont enter through the membrane and would be signal molecules that bind to receptors on the cell surface?
What types of molecules can carry signals into the cell to a receport inside? what types of molecules cannont enter through the membrane and would be signal molecules that bind to receptors on the cell surface?
Signal molecules or Ligands - Signal molecules or ligands are those type of molecules which transfers information between different cells of the body. These molecules vary in size, shape and functions. Some molecules carry information upto nearby distance only while some molecules carry information upto long distance.
Receptors - Receptors are special type of proteins on which the ligand molecules bind and then creates a response. Receptors are of two different types. these are:
1. receptors which are present on the cell surface
2. receptors which are present inside the cell.
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