AP Biology Water
and the fitness of the environment
|Define cohesion ||When the molecules of water want to cling together due to hydrogen bonds|
|Why does water have surface tension? ||Because of the hydrogen bonds|
|What are hydrogen bonds? ||When the negative oxygen side of one water molecule is attracted to the positive hydrogen side of the other.|
|What is responsible for moderating the earth's temperature? ||Water, because of its high specific heat and hydrogen bonding.|
|Define hydrophilic ||Any substance that has an affinity for water|
|Define hydrophobic ||Any substance that seem to repel water.