Your body is chock full of tiny robots and machines, and here they are...

These videos are not new but still the standard for actually seeing how our body processes chemicals, acids, and nutrients at the molecular level. We have itsy-bitsy weavers at their looms, walking robots with carts and carriers, and trains, train stations, and porters working round the clock inside us. And some of them are kinda cute.



 

These videos are not new but still the standard for actually seeing how our body processes chemicals, acids, and nutrients at the molecular level. We have itsy-bitsy weavers at their looms, walking robots with carts and carriers, and trains, train stations, and porters working round the clock inside us. And some of them are kinda cute.



Fascinating!
 
A few years ago, I bought cheap then read over months, an otherwise expensive, used, fascinating 2015 University of Chicago book, The Cell, on amazon that both explains cell functions along with many superb microphotos and graphics. So have read about much of what is shown in the animations that as the animation relates, actually has incredibly more complex organic chemistry going on than shown. In this latest era, computational modeling has been a powerful tool in the study of protein binding kinetics. Modeling is capable of describing molecular systems with atomistic details while exploring the motions of the systems at femtosecond to microsecond time-scales. Genetic sciences will be in the forefront of science advances over next generations and that may eventually take a powerful AI to even understand such beyond modest complexities. For any that doubt how complex this modeling is, try reading some of this:

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5470370/

Note the animation that shows the dynein motor walking along the microtubules. What is actually occurring is not actually walking but rather the part that is shown as legs and feet are constantly vibrating and shaking about in somewhat focused directions at high speed but when they come in contact with the next location on the microtubule, the feet as a molecular key fits into a receptor shape on the microtubule that then binds it while the previous other foot is released from its binding that then moves ahead as the next step. Binding occurs using intermolecular forces, such as ionic bonds, hydrogen bonds, and Van der Waals forces and each step involves a chemical enzyme cycle. Also the actual speed of these molecular machines is vastly faster than the slowed down animation because molecules in a dense electrolyte chemical sea, are moving about, vibrating, bouncing, colliding at close range, at high speeds. Particularly amazing is what is shown at the kinetochore with chromatids and microtubules.

This well worth viewing longer 35 minute video also with animations, explaining molecular motors and machines in greater depth:

 


Back
Top