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Biological Environment > Enzyme

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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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En-zyme means "in yeast", so called because that is where these proteins were first found.

Enzymes are needed to do many different jobs: breaking down food to get energy; building small molecules up into larger ones; rearranging molecules; getting rid of waste products.
For every job which has to be done in life there is one kind of enzyme. The one shown here can split a food molecule in two. But the enzyme must not split just any molecule. If it did it might attack the living thing it belonged to and kill it

   
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Earlier  4 Billion Years ago Later Soccearth Later

Biological Environment > Enzyme

   

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