History of the Universe

   

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Biological Environment > Amino Acid Chains

Earlier  4 Billion Years ago Later

This site tells the story of the history of the universe. Click Earlier and Later to follow the story. Note: Many facts have been simplified to make them easier to understand.

 
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When several amino acids are joined together into a chain and then placed in water, they fold up into a particular shape. For example some chains will form spirals like the one shown here.

The job an enzyme can do depends on its shape. Its shape depends on the way it folds up. The way a chain folds up depends on the order in which amino acids are joined in the chain. So the process of life centers upon joining the right amino acids in the right order.

   
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Earlier  4 Billion Years ago Later

Biological Environment > Amino Acid Chains

   

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