Answers & explanation:
- How is photosynthesis a chemical reaction?
Photosynthesis, as its name implies, is the synthesis of carbohydrate (glucose) from water and carbon dioxide (CO₂).
What characterizes a photosynthesis reaction is the absorption of light, and it is through it that food production occurs in vegetables, so it is indispensable for plant life.
The leaves of plants have a substance called chlorophyll, which picks up the sun's light radiation to be transformed into chemical energy.
The chemical reaction that occurs in photosynthesis can be outlined as follows:
Carbon dioxide + water + sunlight = glucose + oxygen
or through the following equation:
6CO₂ + 6H₂O + heat → C₆H₁₂O₆ + 6O₂.
- Why is photosynthesis classified as endothermic?
Endothermic processes are those in which energy absorption occurs in the form of heat.
Photosynthesis is an example of endothermic chemical reaction. In this process, plants use energy from the sun (in the form of heat) to convert carbon dioxide and water to glucose and oxygen.