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Like all eukaryotes, yeast cells consume oxygen in the process of obtaining energy from sugars, for example, in dough or grape juice, to carry out the process of cellular respiration. Cellular respiration is the aerobic harvesting of energy from food molecules by cells. ... The oxygen from the air passes through the bloodstream to the mitochondria of cells where cellular respiration occurs with the energy from sugar and other organic molecules from food. The bloodstream also disposes of the carbon dioxide, one of the waste produces of cellular respiration.
The human body uses ATP, a product of cell respiration, for all its activities and it is required in order to stay alive. Because cell respiration cannot occur without oxygen, body maintenance would not occur without it, and we could not sustain life.
Approximate Word count = 622
Approximate Pages = 2.5
(250 words per page double spaced)
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