ABSTRACT
An understanding of light is important in order to appreciate its effect on many living systems. Light reected from objects into our eyes enables us to see the object because molecules in the eye can absorb light. Light absorbance allows us to appreciate the beauty of great works of art as well as provides us with a means by which to perceive the environment around us. Plants are able to use light-absorbing pigments to trigger seasonal changes in development such as owering. In an energetic sense, light is important. The absorbance of light by plants during photosynthesis provides the energy that drives the synthesis of complex biomolecules.
