_______________ and water, in the presence of light energy, are the reactants in photosynthesis. Responses A OxygenOxygen B Carbon dioxideCarbon dioxide C Nitrous oxide
Nitrous oxide is not a reactant in photosynthesis.
The correct answer is B: Carbon dioxide and water. In the process of photosynthesis, plants and some other organisms convert carbon dioxide and water into glucose (a sugar) and oxygen, using light energy from the Sun.
The reactants in photosynthesis are carbon dioxide and water, in the presence of light energy. The correct answer is B, carbon dioxide and water.
To determine the answer, we need to understand the process of photosynthesis. Photosynthesis is the process by which green plants, algae, and some bacteria convert light energy into chemical energy in the form of glucose. It takes place in the chloroplasts of plant cells.
During photosynthesis, carbon dioxide from the atmosphere is taken in through small openings called stomata in the leaves of plants. Water is absorbed from the roots and transported to the leaves. In the presence of light energy, carbon dioxide and water undergo a series of chemical reactions to produce glucose and oxygen.
The balanced equation for photosynthesis is:
6CO2 + 6H2O + light energy → C6H12O6 (glucose) + 6O2
Therefore, the reactants in photosynthesis are carbon dioxide (CO2) and water (H2O).