First video: just an initial comment, I find the music in the background a bit distracting, as it is a bit too close to the same volume as the narrator. It also begs to be paired with a professor to explain the mechanisms shown visually, but not chemically. I would not recommend this video for someone lacking a background in biology, but it would be redundant for someone in a biology-based career. Also, I did not find it interesting, that narrator had a case of BenSteinism (droll tone). Furthermore, it mentions many structures without stating what they do, like mitochondria (their primary function being energy production). Overall, this first video bit off more than it could chew, wanting to go through every little step in the inflammatory response of a leukocyte, but sacrificing detail for it, which amounts to an interesting visual, but too many gaps in information for this video to be useful to anyone that has a weak biology background.
Second video: Misleading representation of how DNA results in the production of proteins. It's a chemical reaction, nothing is really "read" by anything, and most DNA codons are redundant, with multiple ones having the same function despite being made of different bases. Furthermore, mRNA is not a copy of the strand used to make it; it's a complimentary RNA strand to it (which means where there is a C in the DNA, the RNA will have a G in that place). RNA also contains Uracil, which DNA does not, in the place of the T you see there (can't spell the bases off the top of my head, and too lazy to look them up). The strand is not "spat out", it moves through like an assembly line, with part of it moving through until it ceases being produced thanks to the presence of a stop codon, and the rest moves through. It calls the nuclear pore complex "a machine", even though all it is is a selectively permeable membrane that, or more basically, holes that are a size that prevents molecules bigger from them from going through, as well as ones containing components chemically repelled by the membrane, and lets the rest go through because the size and chemistry allows it to happen. The ribosome also is not a machine, and it does pretty much the same thing as the protein that produced the mRNA, but for making proteins. There are tons of ribosomes, to the point that inevitably, the mRNA is going to bump into an appropriate one and the protein will be produced. This is all just a sequence of chemical reactions, but the video acts as if it is consciously guided, but it isn't. A barrel-shaped machine? Really? Not gonna use proper terminology, video? I guess saying molecular chaperones was too hard (by the way, proteins will often attain the correct shape due to chemical interactions between its constituent atoms, even without these, they just catalyze the process and act as chemical barriers to the formation of incorrect configurations). Also, the chain is still a protein prior to folding into a specific configuration. Also, no mention of the Golgi Apparatus and it's role? Sigh.