Humans are something like 70% water… How? Where is all the water?
In: Biology
Our cells are basically tiny water balloons with some bits of stuff inside. The fluid that surrounds all of our cells is almost entirely water. Our blood is almost entirely water. Every single bodily fluid is almost entirely water. We are really just bags of water.
All of the living cells are basically bags of water with other bits in them, your blood and lymphatic system are fluid transport systems.
Within your cells. Many (most?) biochemical reactions take place in aqueous environments within cells. Your blood is like 50% water.
Your basically a sponge. Take a dry sponge it’s really light. Now soak it in water. The water will fill all the holes. Now the sponge is say 70% water.
Your cells are like that sponge. They consist of a thin outer layer. Which encloses a bunch of liquid. Think tide pod. Your cells are mostly empty space filled with water. If you’ve ever accidentally torn off skin before there’s blood you might notice it’s wet. You just ripped some cells open and their wet insides spilled out
These numbers aren’t precisely correct, but pretty close:
Your body is 2/3 water.
2/3 of total body water is inside cells.
Of the stuff that’s outside cells, 2/3 is “loose” inside your tissues (“interstitial fluid”) and 1/3 is in the bloodstream.
(Peanut gallery: what about blood cells? There’s water inside cells AND in the bloodstream. Yeah, yeah, I said these were approximations.)
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