–Built from different monomers with the help of enzymes that facilitate the positioning of the molecules so that the correct chemical bonds are stressed and broken. This is achieved through the removal of the OH and H groups of water.
Photo Credit: Building Blocks of Life. (2014). Retrieved from https://commons.wikimedia.org/wiki/File:Building_blocks_of_life.png

For example. Below is the structure of the DNA double helix. The atoms in the structure are color-coded by element and the detailed structures of two base pairs are shown in the bottom right. Photo Credit: DNA (2011). Retrieved from https://en.wikipedia.org/wiki/DNA#/media/File:DNA_Structure%2BKey%2BLabelled.pn_NoBB.png

•Buffers keep pH of cells in homeostasis. 

•Buffers in blood keep the pH in the range of 7.35 - 7.45.

–Polar molecules are attracted to each other and give water unique characteristics. 

–Heat storage: It takes a lot of energy to break these bonds. This is how our core body temperature can stay around 98F.

–Ice Formation: At freezing temperatures, hydrogen bonds do not break but rather form a crystal structure.

–High Heat of Vaporization: Sweating allows us to cool off because evaporation uses your heat energy.

–High Polarity: Because of the charge, other molecules are either attracted (hydrophilic) or repelled (hydrophobic).