Eli5 what in water Makes it necessary for humans to need it?
In: Biology
So the most basic reason is it makes it much easier for everything to mix together and react. Think of one of those water color paint sets. You get a tray with 5 or 6 different colors in there as dry solids. They don’t interact in anyway. Then you get some water in there and you can mix those colors together to make any color you want. When they are dry if the red paint and blue paint are on opposite sides of a tub then nothing happens but off you fill that tub with water then you end up with purple. It is the same in your body glucose needs to be phosphorylated with phosphate from ATP by hexokinase so that sugar you eat can be broken down to give you energy. Glucose, ATP, and hexokinase are all solids. If our body was dry and not 70%ish water they would each sit in their little piles and never interact. But at the molecular level water is bouncing around bumping into those molicules causing them to move around and bump into each other so that then they are able to interact and cause the chemical reaction of phosphorylating glucose.
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