Close biological analogs of money?

In summary, biological chemicals can act as money in a similar way to how ATP does in metabolism. Enzymes are similar to money because they facilitate exchanges, and money has the role of an intermediary that lowers the informational barriers to exchange. There are also control mechanisms to keep tissues from being too greedy.
  • #1
techmologist
306
12
With all a biological organism has to do in the way of allocating limited resources among lots of different parts that need them in a timely manner, I'm wondering if there are biological chemicals that are closely analogous to money.

I've heard ATP referred to as the common currency of metabolism. I can sort of see that. It has the role of an intermediary, which is sort of like a medium of exchange. But doesn't it continuously get consumed and regenerated? That makes me associate it more with a staple food. Like in a primitive economy where agricultural workers are paid in grain so that they can have energy to produce more grain.

Then there are enzymes. Money functions much like a catalyst for exchanges where both sides profit (these are energetically favorable reactions). Without money, these favorable exchanges would take much longer to happen. You have to find someone to barter with. But money lowers the informational barriers to exchange.

The difference is, enzymes don't seem to be possessed by any particular reactant (or is this wrong?), whereas money actually changes hands for exchanges to happen. It is a medium of exchange.

Are there more, or perhaps better, analogies between biological organization and the price system? Or are they more different than similar?

Thanks
 
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  • #2
Not really no, "energy currency" is an imperfect analogy. Resources in the body aren't traded in any way that is similar to market forces, nutrients are cycled through the circulatory system and absorbed by the tissues that need them. When there aren't enough nutrients reaching tissues they can release signalling factors to encourage release/production from elsewhere.
 
  • #3
Idealistic socialism would seem to be a closer analogy than a market driven economy.
(Not a political statement, it just seems like a closer analogy to me.)
 
  • #4
OK, so the market isn't such a great analogy. Still, I can get something even from imperfect analogies. The market might be a specific example of a more general principle of organization. Which I need to find.

Ryan_m_b said:
When there aren't enough nutrients reaching tissues they can release signalling factors to encourage release/production from elsewhere.

That is awesome. I am very interested in self-organizing systems. I guess price signals are just one way of achieving practically the same thing.

I assume there are also control mechanisms to keep any particular tissue from being too greedy, signalling for and absorbing nutrients that could be put to better use elsewhere? Or is it that when the nutrient starts circulating, whatever tissue needs it the most will absorb it the fastest.
 
  • #5
techmologist said:
I assume there are also control mechanisms to keep any particular tissue from being too greedy, signalling for and absorbing nutrients that could be put to better use elsewhere? Or is it that when the nutrient starts circulating, whatever tissue needs it the most will absorb it the fastest.

You can look up "homeostasis". Diabetes is an example of a disease which can be thought of as a failure of glucose homeostasis.
http://diabetes.diabetesjournals.org/content/56/6/1489.full

There is also homeostatic control of blood flow.
http://cnx.org/contents/5f4c74cd-b9f4-432c-b12b-24b7f1474a4f@5/Homeostatic-Regulation-of-the-
 
Last edited:
  • #6
atyy said:
You can look up "homeostasis". Diabetes is an example of a disease which can be thought of as a failure of glucose homeostasis.
http://diabetes.diabetesjournals.org/content/56/6/1489.full

There is also homeostatic control of blood flow.
http://cnx.org/contents/5f4c74cd-b9f4-432c-b12b-24b7f1474a4f@5/Homeostatic-Regulation-of-the-

Thank you! I have been trying to psych myself up to learn the nuts and bolts of feedback control theory, and that model for glucose regulation is exactly the type of motivation I need to get into it. It also served as a useful reminder to put the books down once in a while and get some exercise so the muscles don't forget how to dispose of glucose. And to keep the beer belly in check. Perhaps a switch to Bud Light is indicated. :)

I like Bergman's understanding of how science works. New understanding is always schematic in nature. You can always fill in details later as needed, but to gain new knowledge, you have to have a simplified model that cuts to the chase.
 
  • #7
techmologist said:
Thank you! I have been trying to psych myself up to learn the nuts and bolts of feedback control theory, and that model for glucose regulation is exactly the type of motivation I need to get into it. It also served as a useful reminder to put the books down once in a while and get some exercise so the muscles don't forget how to dispose of glucose. And to keep the beer belly in check. Perhaps a switch to Bud Light is indicated. :)

I like Bergman's understanding of how science works. New understanding is always schematic in nature. You can always fill in details later as needed, but to gain new knowledge, you have to have a simplified model that cuts to the chase.

Actually, I meant to put something simpler than Bergman's article, but unknowingly did something that switched the links!

Anyway, knock yourself out if you'd like to learn feedback control on the glucose regulation system! I'd love to understand it one day too. You may find Astrom and Murray's text http://www.cds.caltech.edu/~murray/amwiki/index.php/Main_Page useful. There's a very brief discussion of the work by Bergman and others in section 3.6 of the first edition or Appendix A.6 of the draft second edition http://www.cds.caltech.edu/~murray/books/AM08/pdf/fbs-examples_22Jun14.pdf.
 
  • #8
atyy said:
Actually, I meant to put something simpler than Bergman's article, but unknowingly did something that switched the links!

It worked out for the best. I was able to piece together what truncal adiposity meant from the context. You can bet I will try to work that into a conversation.

Anyway, knock yourself out if you'd like to learn feedback control on the glucose regulation system! I'd love to understand it one day too. You may find Astrom and Murray's text http://www.cds.caltech.edu/~murray/amwiki/index.php/Main_Page useful. There's a very brief discussion of the work by Bergman and others in section 3.6 of the first edition or Appendix A.6 of the draft second edition http://www.cds.caltech.edu/~murray/books/AM08/pdf/fbs-examples_22Jun14.pdf.

Excellent. Thanks!

Of course I'll have to start out easy, with bimetallic strip thermostats and all that. But ultimately I want to understand those feedback control systems whose design coincided with their implementation. Nature just makes stuff up as it goes.
 

1. What are close biological analogs of money?

Close biological analogs of money refer to any form of exchange or currency found in nature that closely resembles the concept of money used in human societies. These could include items such as shells, feathers, or even animal teeth that were used as a medium of exchange in various cultures.

2. How do close biological analogs of money differ from modern currency?

Close biological analogs of money differ from modern currency in several ways. One key difference is that they are often tangible objects that have inherent value, whereas modern currency is mostly based on a shared belief in its value. Additionally, close biological analogs of money are often limited in supply and cannot be easily created or duplicated, unlike modern currency which can be printed or created digitally.

3. What is the significance of studying close biological analogs of money?

Studying close biological analogs of money can provide insights into the origins and evolution of human economic systems. It can also help us understand the cultural and societal factors that shape the concept of money and how it functions in different societies. Additionally, studying close biological analogs of money can provide a broader perspective on the role of exchange and currency in human societies.

4. Are there any close biological analogs of money still in use today?

Yes, there are still some cultures and communities that use close biological analogs of money as a form of currency. For example, in some parts of Melanesia, people still use shells as a form of currency for trade and exchange. In certain African countries, cowrie shells are still used as a form of currency for small transactions.

5. Can close biological analogs of money teach us anything about the future of currency?

Studying close biological analogs of money can provide insights into the potential future of currency and economic systems. By understanding how different forms of currency have been used and evolved throughout history, we can gain a better understanding of potential alternatives to modern currency and how they may function in a changing global economy.

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