Palisade cells are cells which are found within the leaves of many plants. They contain chloroplasts, which convert the energy in light to chemical energy through photosynthesis. The cylindrical shape of palisade cells allows a large amount of light to be absorbed by the chloroplasts. Beneath the palisade mesophyll are the spongy mesophyll cells, irregularly-shaped cells that having many intercellular spaces to allow the passage of gases, such as the intake of carbon dioxide for photosynthesis to take place. The stomata is the way in which these gases are exchanged, as well as the transpiration of water from the xylem, either by the apoplast or symplast pathway. Palisade cells are positioned towards the upper surface of the leaf and contain the largest number of chloroplasts per cell in plants. This makes them the primary site of photosynthesis in a plant's leaves. They have a very large surface area in order for them to absorb more light during photosynthesis. This makes photosynthesis easier and more chemical energy can be produced for the plant. Palisade cells are found in leaves, which is the reason that plants are green.
The main reason for a palisade cell which is found in a plant, contains so many chloroplasts, is in order to absorb as much light as possible.
Light is needed in order for a plant to survive and grow, without light, a plant would be able to function and go through the process of photosynthesis.
What is photosynthesis?
Photosynthesis is a process which occurs in plants which converts massive amount of Sunlight into electrical and then chemical energy. The input is carbon dioxide (CO2), water, minerals and light, and the output is carbohydrates , which is used as food which is needed for nourishment and oxygen that is needed for respiration.