Why is the colour of a leaf kept in the dark frequently yellow, or pale green? Which pigment do you think is more stable?
Since leaves require mild to carry out photosynthesis, the shade of a leaf stored withinside the darkish modifications from a darker to a lighter colour of green. Sometimes, it additionally turns yellow. The manufacturing of the chlorophyll pigment important for photosynthesis is at once proportional to the quantity of mild available. In the absence of mild, the manufacturing of chlorophyll-a molecules stops and that they get damaged slowly. This adjustments the coloration of the leaf step by step to mild green. During this process, the xanthophyll and carotenoid pigments grow to be predominant, inflicting the leaf to end up yellow. These pigments are greater solid as mild isn't crucial for his or her manufacturing. They are usually gift in plants.
