Question

which of the following signal molecules is not used for extracellular signaling​

Answer 1

extracellular signaling in animals is carried out by the four categories by signal molecules.endocrine,paracrine,autocrine,and juxtocrine signalling.

Answer 2

The following signal atoms are not used to sign outside cells are:

• Correct answer Cyclic AMP.
• Extracellular signalling in animals was performed in four stages of endocrine signalling cells, paracrine, anti crime, and juxtacrine signalling.
• Cyclic AMP is the second messenger used for intracellular signalling.
• In an endocrine signal, a signal molecule is active in a targeted cell only nearby.
• In animals the signalling molecule carries directly to the cells through the blood or other fluids that come out of the cells.
• In paracrine signalling, signalling molecules are released and affect only the targeted cells nearby.
• In the manifestation of crime, the cell that releases the signal molecule is also affected by the released molecule.