The operating system of life - George Zaidan and Charles Morton
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This is a super simple introduction to biochemistry: Biochemists have to understand both the living world and the chemical world to be the best at their jobs. Even if you didn't want to become a biochemist, you'll still have to know the details of how atoms move if you wanted to be a biologist. The key thing to remember is that biochemistry is the chemistry of the living world.
Another source says, "Biochemistry is the study of the chemistry of living things. This includes organic molecules and their chemical reactions. Most people consider biochemistry to be synonymous with molecular biology."
As the narrative goes, fat is bad. Well, it's actually more nuanced than that. The type of fat you eat is more impactful on your health than the quantity. George Zaidan examines triglycerides, the varied molecules that make up fat, and how to identify which types of fat you are consuming.
In his lab, Martin Hanczyc makes "protocells," experimental blobs of chemicals that behave like living cells. His work demonstrates how life might have first occurred on Earth ... and perhaps elsewhere too.
To see all the lessons George Zaidan has worked on, check this out. To see all the videos Charles Morton has worked on, check this out.