Flagella

... the bacterial flagellum stuff: https://www.youtube.com/watch?v=JVRsWAjvQSg If you're thinking "but I'm talking about the origin of life, not flagella!" I would point out that these arguments apply equally well to proto-life. The point is that a complex system arises piece by piece, not ...

See entire post

... in different organisms. For instance, protein sequences can be used to construct phylogenetic trees, and many biochemical structures, like flagella and ion channels, are remarkably similar in different organisms. Of course, my favorite biochemical example of common ancestry is the stereochemistry ...

See entire post

... A) mitochondria B) ribosomes C) smooth endoplasmic reticulum D) lysosomes A) 17. Which of the following works like a propeller? A) eukaryotic flagella B) prokaryotic flagella C) eukaryotic cilia D) prokaryotic cilia B)

See entire post

... cells? A) mitochondria B) ribosomes C) smooth endoplasmic reticulum D) lysosomes 17. Which of the following works like a propeller? A) eukaryotic flagella B) prokaryotic flagella C) eukaryotic cilia D) prokaryotic cilia

See entire post

b) Hair fibres They contain keratin, a fibrous protein, whereas flagella are made up of microtubules. Although every cell contains microtubules, as they are essential for intercellular trafficking of stuff, the hair that we see, are made up of dead cells, ...

See entire post