History of the Universe

   

  Basic Information  

   

  Further Information  

   

  Other Hotu Pages  

   

  Questions  

   

  Edit  

Biological Environment > Protein

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.

 
Google
Proteins are one of the main building blocks in living things. They have two main uses in living things:
  • Protein is often used as a building material. For example, skin, hair, nails and the tough outer skins of insects are made mostly of protein.
  • Perhaps more important, some proteins do work on other molecules. Proteins which do these jobs are called enzymes.
Proteins are made from molecules called amino acids, arranged in long chains (like the one shown here), or in flat sheets, or rolled up like a ball of string.
   
    Like this web site? Buy the book!

Earlier  4 Billion Years ago Later

Biological Environment > Protein

   

  Basic Information  

   

  Further Information  

   

  Other Hotu Pages  

   

  Questions  

   

  Edit  

Search Now:
Amazon Logo

Copyright © 2007 Penny Press Ltd   Terms and Conditions of Use and Sales