Plants, animals, and bacteria share very similar signaling processes is a characteristic of cell communication that suggests cell signaling evolved early in the history of life.
- The fundamental design of the signaling pathways is fairly similar in all of these organisms.
- The extracellular domain of the receptor is where signalling molecules often attach, causing certain conformational changes in the receptor that result in the creation of secondary messengers inside the cell, which in turn cause more adaptor molecules and transcription factors.
- All of these cellular internal alterations cause the transcription or chemical synthesis of the necessary enzymes, which aid the cell in responding to the signal.
- As a result, this characteristic of cell communication suggests that cell signalling evolved early in the course of life.
- Not every organism makes hormones for cell signalling. The majority of higher organisms, such as animals and plants, have access to hormones. There is no cell signalling hormone produced by bacteria. Thus, it is not a characteristic either.
To know more about organism check the below link:
https://brainly.com/question/13271084
#SPJ4
