This animation was made by the Shenandoah Baptist Church and is famously misleading. The “steps” are the stochastic byproduct of Brownian motion. Here’s an accurate representation:
How is it more accurate? I thought that in reality the “steps” are incredibly fast, but that makes it seem like it’s a much slower and more uncertain process.
Relative to the speed shown in the visualizations. The pop-sci animations look like it takes one step every second or so, while in reality they do hundreds per second.
Whoa, does that mean they cool the cell as they walk? They are transferring energy from the Brownian motion which on average would result in a lower temperature in the surrounding particles.
This animation was made by the Shenandoah Baptist Church and is famously misleading. The “steps” are the stochastic byproduct of Brownian motion. Here’s an accurate representation:
https://youtube.com/shorts/Vlb9F_cj6As
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I teach cell biology. This is not an acceptable model. Kinesins don’t lift their feet to walk. This is a Disney version of the mechanism.
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So its the same but drunk?
How is it more accurate? I thought that in reality the “steps” are incredibly fast, but that makes it seem like it’s a much slower and more uncertain process.
Fast relative to what? The point is that the kinesin protein doesn’t “walk” any more than floating debris “swims.”
Relative to the speed shown in the visualizations. The pop-sci animations look like it takes one step every second or so, while in reality they do hundreds per second.
And they stop, pause, and can go backwards.
Microscopic presentation
https://youtube.com/shorts/JTLi-HdUFEA
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Whoa, does that mean they cool the cell as they walk? They are transferring energy from the Brownian motion which on average would result in a lower temperature in the surrounding particles.
I vote for the Baptists!!! Yours sucks.