Answer:
Yes, plants require light to carry out the process of photosynthesis, which is the process by which they convert light energy into chemical energy in the form of glucose. Plants use glucose as a source of energy to carry out their life processes.
We can tell that plants require light by observing their growth and development in the presence and absence of light. In the absence of light, plants grow slowly, become pale or yellowish, and may eventually die. On the other hand, in the presence of light, plants grow vigorously, develop green color due to the presence of chlorophyll, and produce flowers, fruits, and seeds.
Yes, plants require carbon dioxide to carry out the process of photosynthesis. During photosynthesis, plants take in carbon dioxide from the atmosphere and use it to synthesize glucose.
We can tell that plants require carbon dioxide by observing their growth and development in the presence and absence of carbon dioxide. In the absence of carbon dioxide, plants grow slowly and may eventually die. On the other hand, in the presence of carbon dioxide, plants grow vigorously and produce more biomass.
Most plants require chlorophyll to carry out the process of photosynthesis. Chlorophyll is a green pigment found in the chloroplasts of plant cells that absorbs light energy and converts it into chemical energy.
We can tell that plants require chlorophyll by observing the color of the plant. Plants that have chlorophyll appear green in color, while plants that lack chlorophyll, such as some parasitic or saprophytic plants, appear yellow or white. Additionally, plants that lack chlorophyll are not capable of carrying out photosynthesis and must obtain their nutrients from other sources.