What are the similarities between the leaves of different plants?
Answers
The leaves are the sites wherephotosynthesis mainly takes place.
All during spring and summer the leaves manufacture the food needed for plant growth, especially in trees. This food-making process takes place in the leaf in numerous cells containing the pigment chlorophyll, which gives the leaf its green color. Along with the green pigment leaves also contain yellow or orangecarotenoids which, for example, give the carrot its familiar color. Most of the year these yellowish colors are masked by the greater amount of green coloring. But in the fall, partly because of changes in the period of daylight and changes in temperature, the leaves stop their food-making process. The chlorophyll breaks down. The green color disappears, and the yellowish colors become visible and give the leaves their changing color.