The best statement is Carbon dioxide is reduced to form sugar.
Through the intricate biochemical process of photosynthesis, plants change carbon dioxide and water into glucose and oxygen by utilizing chlorophyll and sunlight. The reduction of carbon dioxide, to which hydrogen ions and electrons are added to create sugar, is the essential transformation.
For the synthesis of organic compounds like glucose, which is the plant's main source of energy, this reduction process is essential. The primary process of photosynthesis is not adequately captured by alternative theories, such as the oxidation of water and the direct conversion of sunlight into sugar.
Missing parts;
During photosynthesis, sugar
A) Carbon dioxide and water combine to form sugar in the presence of sunlight.
B) Sugar breaks down into carbon dioxide and water, releasing energy in the presence of sunlight.
C) Sunlight is directly converted into sugar through a chemical reaction with carbon dioxide and water.
D) Carbon dioxide is released from sugar, and water is consumed during a process driven by sunlight.