Bond Strengths

The strengths of some bonds that are important in biological systems

From the above table you can see

• the different kinds of covalent bonds have different and defined energies
  
  

• hydrogen bonds can be formed in different ways
  
  

• hydrogen bonds are very weak bonds when compared to covalent bonds
  

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The biological consequences of these properties are:

• under normal biological conditions covalent bonds are not broken unless by the use of enzymes
  
  

• under normal biological conditions hydrogen bonds are frequently broken and formed without the use of enzymes
  

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Return to covalent bonds

return to weak bond

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