3steps from the big bang
27things can go into it
cell membrane
ComponentPart
A skin just two molecules thick that separates life from everything else.
First appearedAbout 4.2 billion years ago
Made Of
Everything is made of something.← What it takes
What it leads to →
2 ways to make it
Made from
Goes into
A skin just two molecules thick that separates life from everything else.
From the big bang to cell membrane
The most direct chain from the start of the universe, following what things are made from and, for living things, what they evolved from. Each step shows when it first appeared.
big bang13.8 bn yrs ago
Hhydrogen13.8 bn yrs ago
lipidsdate unknown
cell membranec. 4.2 bn yrs ago