The functions inside a leaf during photosynthesis By: Ayla Davis

The equation for photosynthesis is represented at 6CO2 + 6H20 + light energy=C6H12O6 + 6O2. There are two different stages in which photosynthesis occurs. In the first stage, the sunlight energy is absorbed by the chloroplast. Water is then used, and oxygen is produced during this part of the process. In this case, the water being used ends up going to the xylem which can transport those water molecules from the roots of the leaves. In the second stage, carbon dioxide is being used, and glucose is produced. The chloroplasts contains stacks of thylakoids, which are flattened sacs of membrane. With that being said, the palisade layer actually has the organelles of the nucleus, cell wall, cell membrane, chloroplast, vacuole, and cytoplasm which is very important because the palisade layer hosts most of the choloplast in the plant. To add on, the chloroplast is a huge role in photsynthesis because it converts the sun light energy into sugars that can be used by cells. Energy from the sunlight is absorbed by the pigment chlorophyll in the thylakoid membrane. While the energy of sunlight is entering the plant, luckily the upper epidermis is there to protect the plant from other elements coming in.

All three of the mentioned components of carbon dioxide, water, and the sun light are necessary for photosynthesis to occur. These three components must meet in the chloroplast of the leaf cell for photosynthesis to occur, so the fibrovascular bundle helps this transportation. Glucose and Oxygen are then produced during the end of photosynthesis which means the spongy layer will come in play and allow the transportation of these products during photosynthesis. Once the sugar(food for the plant) is done being produced the friendly pholem can come and help transport those sugars from the leaves to the rest of the plant. To help this happen, the mesophyll is there to make assimilation tissue which provides nutrients tocells inside the plant as well. The oxygen is released into the atmosphere through the stomata in which the gaurd cells play this role by opening and closing the stomata. As you may, animals need oxygen in order to survive. Without photosynthetic organisms like plants, there wouldn't be enough oxygen in the atmosphere for animals to live off of. With that being said, the air spaces which contain the gases (such as oxygen or carbon dioxide) during photosynthesis, is there so that the plant can use the CO2 and oxygen to release and gain.

Photosynthesis is so important because the eenergy that the plant provides is required in human food and it also helps animals to survive. It is a miracle that this process has generated in plants for so many years, because without photosynthesis, we would all be suffering slowly.This is also very important because animal materials and foods can also be traced back to this source of energy and materials. to add on, besides the immediate energy and materials that photosynthesis provides, it's also the source of the energy stored in fossil fuels, which come from the decomposition of buried organisms without oxygen.

Created By
Ayla Davis
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Created with images by Sumana Khanom - "Sun-kissed Leaves"

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