oxygen. In oxygenic photosynthesis, H 2 O is split and supplies the electron to the reaction center. It is released as a waste product of photosynthesis. Because oxygen is generated as a byproduct and is released, this type of photosynthesis is referred to as oxygenic photosynthesis. This often considered a reversible reaction, as the reverse of this reaction (glucose and oxygen to water, carbon dioxide and … Photolysis of water is the main source of oxygen released during photosynthesis. The molecule consists of one central carbon atom and two oxygen molecules. The plants use up glucose formed through photosynthesis as an energy source, and oxygen is released into the environment as a byproduct. The oxygen released during photosynthesis comes from the splitting of water molecules to provide the electrons with hydrogen and oxygen. Photolysis is defined as the splitting of H2O molecule into hydrogen ions, electrons and oxygen in the presence of light and grana. • This procedure occurs during a light-dependent reaction. (H2O) - The clear liquid which is the basis of living organisms, found in rivers, lakes, and oceans. They take in light energy from the sun and water and carbon dioxide from the air. carbon dioxide.c. pyruvate. reverse of photosynthesis. chlorophyll.d. What are the reactants of cellular respiration? sunlight. Cellular respiration converts oxygen from the atmosphere and glucose from food into water and carbon dioxide. It is released during the photolysis of water which takes place during light reaction of photosynthesis. Oxygen is the byproduct of photosynthesis. oxygen.e. water and carbon dioxide. This is how the plant generates energy, or ATP, to survive. So, the correct answer is 'oxygen'. What are the main reactants (ingredients) required for photosynthesis? Photosynthesis helps in the conversion of water, CO2, and sunlight into glucose and oxygen. (CO2) - The gas which is a byproduct of animal respiration that plants absorb during photosynthesis. • The oxygen is discharged into the atmosphere during the light reactions. If oxygen isn't released during photosynthesis, its counter process, cellular respiration, cannot occur, and there will be a lack of ATP generated and the plant will die. During photosynthesis, oxygen is produced along with glucose (not a gas) Plants use photosynthesis as a way of producing glucose. All higher organisms (including plants and animals) respire. The oxygen byproduct of photosynthesis is utilized in another process in the plant: cellular respiration. This is then used to produce oxygen and glucose. The gas released during the light reactions of photosynthesis is oxygen.The substrate of photosynthesis are carbon dioxide and water, and the products are glucose and oxygen. 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