Oxygen+Assignment

Short story/poem/rap/essay/diary entry etc.... Describe the path of an oxygen molecule making its way through the respiratory and circulatory systems, travelling to tissues, reacting with glucose in the cell, and leaving the body bound to carbon.

Total /12: (/5 C, /7 K)
 * Approximately one page, no longer
 * Clear understanding of the respiratory and circulatory systems (accurate and clear):
 * Function /2 K
 * Relationship between the lungs, heart, veins, arteries, capillaries and cells... /5 K
 * Grammar, punctuation, sentence structure /1 C
 * Creativity /4 C