Energy and Metabolism

Topics: Metabolism, Cellular respiration, Adenosine triphosphate Pages: 4 (1328 words) Published: December 2, 2012

Eirin Bruheim

AIU Online


Biology is the study of life. It solves the mysteries of life, and shows how these small miracles are performed every day in every living thing. This is true when biology delves into the creation of energy, metabolism and the individual cells working together to create life. However biology also shows how outside factors affect life and the necessities of things such as sunlight, food and water in order to survive. For example many years ago dinosaurs roamed these lands until a catastrophe occurred (Audesirk, T., Audesirk, G., and Byers, B., 2008). The sun’s light was blocked from the crust of the earth with dust and debris from a giant meteor, or with sulfur dioxide and ash from increased volcanic activity. About 70 percent of the living organisms on earth perished from the lack of sun (Audesirk, T., Audesirk, G., and Byers, B., 2008). Humans albeit very different from dinosaurs cannot live without the sun’s light, or its heat. More importantly photosynthesis cannot occur without the sun. Furthermore, without photosynthesis no plant life can grow and feed the food chain on this planet (Audesirk, T., Audesirk, G., and Byers, B., 2008). However if one does not understand the processes that occur within the body one cannot see the dangers that lurk around every corner.

Photosynthesis and Respiration

It is important to understand photosynthesis as a process before one can understand what it does for the planet. Photosynthesis is described as an ability to store sunlight into energy, using water from the ground that is soaked up through the roots, the carbon dioxide in the air and using the sun’s light to process these two into a product like glucose and oxygen (Editorial Board, 2011). Therefore, photosynthesis produces both oxygen and glucose, which are things necessary for life . The cells that preform photosynthesis contain chlorophyll,...
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