You can also take a shoot of a Money plant and put it in a bottle of water. After a week you will see that roots have grown on the submerged end of the plant. So, we know that sunlight is essential for the survival and growth of all plants. Though plants need fresh air, water and nutrients to grow, sunlight plays the most important role in preparing their nutrition. And leaves do this process of photosynthesis.
Leaves are green because they have a green pigment called chlorophyll.
They have small pores called stomata. And sunlight gives energy to the plant to convert water and CO 2 into sugar and starch, which is the food of the plant. Leaves also have small disk-like structures called chloroplast and the process of photosynthesis takes place inside these chloroplasts. Some plants like Cactus can survive even in dry regions because they can store their food for months. All Rights Reserved Worldwide.