I had a abnormal c x-ray it showed a density in the retrocardic area of lungs what does it mean? Dr. John Chiu Dr. Chiu See doctor: You need to discuss this with your doctor since there are many types of densities which signify different things.
Relevance. Rating Newest Oldest. Best Answer: As said before, photosynthesis does not produce water, it uses the sun's energy to combine carbon dioxide and water to produce carbohydrates and gives off oxygen as a by-product.
A) ATP is not produced during photosynthesis, but only during respiration. B) Photosynthesis is ultimately powered by light energy and respiration by the chemical energy of fuel molecules. C) Photosynthesis consumes CO2; respiration consumes O2. D) Photosynthesis produces O2; respiration produces CO2.