Current Connection 1

In a recent article by Veronique Greenwood entitled "Why Bacteria, But Not Humans, Can Live on Caffeine. Greenwood inform that Bacteria can live on caffeine because they can break cellulose and we humans, cant. And it does not harms us, but we can't use it. Cellulose is the primary component of plant cell walls and accounts for the fiber in the fruits and vegetables. We humans cannot break this cellulose because most of the molecules in nature are inaccesible to human digestion. Cows, rabbits, and other grass muching creatures are able to extract calories from it. We humans don't have bacteria that can break enzymes that strips cellulose down to its component, and animals like this that were named, can break it. Humans are fairly limited in terms of what the body can digest lipids, carbohydrates, and proteins are our only sources of calories. A lot of molecules we don't use them. Bacteria do use all of them, that's why they are strong enough to digest it. All of this is true we humans are much weaker than bacteria. We don't digest the same way, they do. All humans digest differently and they are much stronger than we are. Bacteria are different than all humans are, they are much more stronger, and they are made of powerful cell that we don't have, that way are weaker than they are.