During respiration, cells generate energy without using oxygen. In muscle cells, this process produces lactic acid as a byproduct, while in yeast, it produces ethanol and carbon dioxide.
Cellular respiration is the process by which cells convert glucose and oxygen into energy (ATP), water, and carbon dioxide. However, there are times when oxygen is not present. We say "NO Oxygen.. NO problem" because there is a pathway that allows cells to extract energy from food in the absence of oxygen. Select the correct responses from the drop-down options to complete the statement below. During respiration, cells generate energy without using oxygen. In muscle cells, this process produces as a byproduct, while in yeast, it produces and .
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