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What sunlight actually hits inside a leaf #photosynthesis #chloroplast #molecularbiology #biochemistry #scienceanimation #learnontiktok #learning #funfacts #coolscience #simulation #nanomachine #biotok #science #3danimation From a leaf to the atoms that catch the light, in one continuous dive. Every molecule here is a real structure from crystallography and cryo-EM: photosystem II (the...

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Bacteria Flagellar Motor #learnontiktok #intelligentdesign #evolution #molecular #nanomachine #learning #funfacts #biotok #science #stem #3danimation #atp #biochemistry #coolscience #simulation #atpsynthase #ATP #blender3d A cut-open E. coli slice simulated based on real structures and biology, every molecule you see is a real one: its shape was worked out atom by atom by scientists,using electron microscopes ,X-ray crystallography et al. Everything is drawn to true scale; only time is slowed, about 200×.The sound is not REAL though :) The yellow machine is the flagellar motor: a rotor about 50 nm across, driven by protons flowing through its stator units, turning the hook and filament at ~100 turns per second. Watch how the singal travel to falgelar motor. The teal structures at the lower right are the cell’s “nose” (chemoreceptor array): they sense what’s outside. When the "smell" (for example, nutrient molecules) changes, a protein at their base hands a chemical tag (phosphorylation) to a small messenger. The tagged messenger (orange, cheY) drifts across the cell and latches onto the bottom ring of the motor. When enough of them are attached, the ring flips — the flash is the switch — and the motor runs backwards. Backwards, the propellers fly apart and the cell tumbles; forwards again, it sets off in a new direction. That’s how a cell with no brain finds its way to food. Also in the picture: two more rotary machines (ATP synthase)at the upper left that make the cell’s fuel from the same ion current, a pump that throws out toxins, DNA being copied, a ribosome building a protein, and the three-layer wall with its sugar forest on the outside.

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This is mind ATP Synthase The energy pump that powers every cell in every lifeform on Earth, slowed down by over 1,000x. Without ATP Synthase, life cannot exist. This little nano-machine is made up of a minimum of 8 distinct proteins, all designed perfectly to fit together and operate in a coordinated system that takes in ADP and turns it into ATP, which the cell uses to power metabolic processes. It's designed to only allow certain molecules in & out. Any mistakes, and it could flood the cell with toxic waste in a matter of seconds, killing everything. Each protein building block must fit perfectly together, much like all the pieces inside your phone. Without all the proteins fit & working together from the start, ATP Synthase cannot function, and Life cannot exist. But making things even more complex, ATP Synthase doesn't operate alone. It's located inside the cell membrane, where it actively works with other molecules to ensure the ATP it creates gets to the right place. It's a whole integrated network of energy movement within each cell, without which, Life could not exist. All these pieces must exist together, from the beginning, for Life to be possible. Which means it can't arise piece by piece through evolution - because the very process of evolution requires the whole system. Life requires this system in order to produce the energy it needs to replicate & evolve - but replication & evolution is supposed to have created it. You can't have one without the other. There are no simpler versions - it's literally all or nothing. This is clear evidence of an intelligently designed system. What more evidence do you need?

Divinely Designed

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DNA relication machinery #learnontiktok #atpsynthase #flagellum #biotok #funfacts #biology #nanomachine #learning #molecularbiology #coolscience #scienceanimation #molecularmotor #biochemistry #stem Every time a bacterium divides, it must copy more than four million letters of DNA with astonishing accuracy. Behind this feat is a molecular assembly line called the replisome. At the front is the helicase, a ring-shaped motor made of six subunits. Fueled by ATP, it races along the DNA, pulling apart the double helix and exposing two single strands. But exposed DNA is unstable. Single-strand binding proteins quickly coat the strands, keeping them separated and protecting them until they can be copied. Now comes the copying machinery: two DNA polymerases, one for each strand. Each polymerase grips the DNA through a sliding clamp, a molecular ring that keeps it attached while it adds thousands of new DNA letters. But there's a problem. DNA polymerases can only build in one direction: from 5′ to 3′. At the replication fork, that creates two very different jobs. The leading strand runs in the right direction, allowing its polymerase to follow the helicase and copy DNA continuously. The lagging strand faces the opposite direction. It must be copied in short, separate pieces called Okazaki fragments. First, primase lays down a short RNA primer, creating a starting point for DNA synthesis. Then comes the clamp loader. Powered by ATP, it opens a sliding clamp, positions it around the primer, and snaps it shut, ready for the next round of copying. The lagging-strand polymerase then grabs the new clamp and starts building an Okazaki fragment. As synthesis continues, the DNA template loops out, forming a remarkable trombone-like structure. Once the polymerase reaches the previous fragment, it releases the DNA and jumps to a freshly loaded clamp to start again. Flexible tau proteins connect both polymerases and the helicase to the clamp loader, coordinating the entire machine into one synchronized molecular factory. Together, they can copy roughly a thousand DNA letters every second. And accuracy is just as remarkable as speed. A proofreading subunit catches many incorrectly paired letters and removes them before they become permanent mistakes. Finally, the RNA primers are removed and replaced with DNA, and DNA ligase seals the remaining gaps, joining all the fragments into one continuous strand. Two complete DNA molecules, copied from one, ready for the next generation.

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