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Biology notes - Water: The Miracle Compound Water is...

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Water: The Miracle Compound Water is composed of one oxygen and two hydrogen atoms (covalent bonds) The oxygen is bigger and “hogs” the shared electrons Hydrogens at one end and oxygen at the other (like Mickey Mouse) Unequal electron sharing creates polar molecules A molecule is nonpolar Hydrogen bonds are weak bonds important in the chemistry of life The charged regions on water molecules are attracted to the oppositely  charged regions on nearby molecules Hydrogen bonds make liquid water cohesive Due to hydrogen bonding water molecules can move from a plant’s roots to  its leaves Insects can walk on water due to surface tension created by cohesive water  molecules Water’s hydrogen bonds moderate temperature Water’s ability to store heat moderates body temperature and climate It takes a lot of energy to disrupt hydrogen bonds i.e. change the state of 
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This note was uploaded on 05/03/2008 for the course BIO 101 taught by Professor Hill during the Winter '08 term at SD State.

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Biology notes - Water: The Miracle Compound Water is...

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