The biochemistry of cell communication (Introduction)

by David Turell , Tuesday, August 30, 2016, 19:09 (2786 days ago) @ dhw


> David's comment: This shows the body's cells can cooperate remarkably, but note the bold above. It is by molecular signals, all rapid and automatic.
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> dhw: You always pick out the automatic chemical processes which enable organisms to perceive and communicate (just as they do in humans), and you systematically ignore the crucial processes that determine how the information itself is processed and what is the substance of the message communicated. Why do you not consider the rest of the post?
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> QUOTE: "'The thing is, individual cells don't always get the message right, their sensory process can be noisy, confusing, and they make mistakes," Sun said. "But there's strength in numbers, and the collective sensory ability of many cells working together usually comes up with the right answer. This collective communication is essential to life."
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> The process is not automatic. It requires intelligent cooperation and rectifying mistakes. Why would mistakes be made if the whole process was automatic?
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> QUOTE: "This interactive chatter continues, and a preponderance of cells receiving one sensation persuade a lesser number of cells reporting a different sensation that they must be wrong. By working in communication and collaboration, most of the cells eventually decide what the correct sensory input is, and the signal that gets passed along is pretty accurate."
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> What on earth is automatic about a process in which cells argue among themselves and come up with a decision?
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> QUOTE: "The brain cells, in turn, send a strong signal through nerves to muscles all over the batter's body, the shoulders, legs, and especially arms. The signals arrive and once again a collaborative process takes place, deciding what the message is and how to react. 
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> Signals are passed, cells collaborate to interpret them, and decide what to do. But all you can see is the automatic signalling molecule.-You forget the estimate that the whole batting process is a half second or less. It requires instant coordination How much time for debate is there (?), and I can tell you the quote is hyperbole, as the researcher has no idea what each cell among millions is doing. That is impossible research and therefore an assumption. My own lab work in med school tells me that.