[ExI] [Extropolis] evolution

William Flynn Wallace foozler83 at gmail.com
Sun Jan 22 13:50:36 UTC 2023


John, let's anthropomorphize a bit here:  how would bacteria get the idea
to make anything our body can use, rather than just sit there and eat what
we put down the tubes?  bill w

On Sun, Jan 22, 2023 at 4:30 AM John Clark <johnkclark at gmail.com> wrote:

> On Sat, Jan 21, 2023 at 5:27 PM William Flynn Wallace <foozler83 at gmail.com>
> wrote:
>
> > Thanks John - that helps.  But a swarm of microbes don't get into the
>> stomach knowing how to make neurotransmitters, eh?   "Hey, the transmitters
>> in the brain are running low.  Let's learn how to make them!"
>>
>
> Bacteria already know how to make most Neurotransmitters because most of
> them are small simple chemicals that are the basic building blocks for many
> other things besides Neurotransmitters. For example, 3 of the most
> important and ubiquitous Neurotransmitters are just the very common amino
> acids Glycine C₂H₅NO₂ and Glutamate C5H9NO4 and Aspartate C5H9NO4, and
> they are among the 20 amino acids that are the building blocks of every
> protein in your body.
>
> John K Clark
>
>
>
>
>
>>
>>>> On Sat, Jan 21, 2023 at 10:58 AM William Flynn Wallace <
>>>>> foozler83 at gmail.com> wrote:
>>>>>
>>>>> > I read today in Neuroscience News that gut microbes control our
>>>>>> body's temperature. I assume that they are not there at birth,
>>>>>> though they could have been picked up via the birth canal. How does
>>>>>> it happen that entirely separate organisms come to regulate any body
>>>>>> function?
>>>>>>
>>>>>
>>>>> Evolution can and has pushed very different organisms into parasitic
>>>>> or symbiotic relationships. For example, Nitrogen-fixing bacteria can
>>>>> perform the very difficult process of using molecular *N*2 nitrogen
>>>>> in the air to make *NH*3 ammonia, and unlike the nitrogen in the air,
>>>>> plants such as soybeans and other legumes can use the Nitrogen in ammonia.
>>>>> It's very difficult to split the N2 molecule because it's a triple bond and
>>>>> one of the strongest in all of chemistry, but Nitrogen-fixing bacteria has
>>>>> managed to master the trick of doing so. Soybeans provide nourishment to
>>>>> the Nitrogen-fixing bacteria. and the bacteria provides nitrogen rich
>>>>> fertilizer to the plant.  Neither the plant nor the bacteria can survive
>>>>> without the other.
>>>>>
>>>>> --
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