Respuesta :
Sugar and oxygen are the precursors of cellular respiration.
Further Explanation:
Cellular respiration is a biochemical pathway that oxidizes glucose and oxygen to produce water and carbon dioxide as a byproduct and generates energy in the form of ATP. The breakdown of energy-rich food molecules occurs during cellular respiration. Cellular respiration is an important process that takes place in all cells to generate energy for various metabolic activities. Glycolysis is the very first step of cellular respiration whether it is aerobic or anaerobic respiration that occurs in the cytoplasm of the cell.
The cellular respiration takes place in the presence of oxygen and the end products of glycolysis enter into the Krebs cycle and electron transport chain to generate ATP molecules. If the oxygen is not present (anaerobic) in the cell then the final product of glycolysis produces ethanol and . This fermentation is called ethanol fermentation. the fermentation is less efficient than aerobic respiration.
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Answer Details:
Grade: High School
Subject: Biology
Topic: Respiration
Keywords:
Glucose, ATP, cytoplasm, energy, glycolysis, Krebs cycle, electron transport chain, aerobic, anaerobic, biochemical pathway.
