Answer:
Photosynthesis can be described as a process in which carbon dioxide and water get converted into glucose and oxygen in the presence of light energy. Oxygen is produced as a by- product for this reaction.
The presence of chlorophyll is vital for the process of photosynthesis to occur. The light energy from the Sun is trapped by the chlorophyll present in the chloroplast. Hence, if chlorophyll will not be present then light energy would not be trapped by the plant and photosynthesis won't occur.