Please enable JavaScript.
Coggle requires JavaScript to display documents.
unit 6 plant nutrition (Functions (The palisade mesophyll is above the…
unit 6 plant nutrition
photosynthesis.
The fundamental process by which plants manufacture carbohydrates from raw materials using energy from light.
-
-
Chlorophyll,Light intensity,Carbon Dioxide
Chlorophyll traps light energy and converts it into chemical energy for the formation of carbohydrates and their subsequent storage.
A higher intensity of light increases the rate of photosynthesis and a lower intensity decreases the rate of it.
Without the sufficient amount of carbon dioxide in the air, photosynthesis can not take place.
-
Functions
The palisade mesophyll is above the spongy mesophyll layer and below the upper epidermis. The function is to allow the absorption of light energy for the process of photosynthesis. They contain the most chloroplasts and it is the best place for photosynthesis to work because of the even amount of reactants in the site and the large amount of chlorophyll.
The vein is round, in the center of the leaf and contains the xylem and phloem (vascular bundles) which transport substances through the plant. The xylem delivers water and material ions to the leaf while the phloem transports the products of photosynthesis, such as glucose, away from the leaf. Another purpose is to give the plant support (and more stability)
The spongy mesophyll is below the palisade mesophyll and above the lower epidermis. The cells are much more spread out than those in the upper, lower epidermis and the palisade mesophyll. This is so that gases (and therefore water too) can diffuse easily through the leaf to the palisade cells. A main purpose is gas exchange.
The stomata are in the very lower surface of the leaf (the lower epidermis). They are pours that allow the exchange of gases (the release of oxygen and intake of carbon dioxide). The stomata open through the how turgid the guard cells in the stomata are.
Nesccesary ions
Magnesium ions
Magnesium ions are needed to produce chlorophyll. Chlorophyll plays a very large role in the process of photosynthesis by transferring light energy to chemical energy. Without magnesium ions, chlorophyll couldn't be produced slowing and dramatically hurting the process of photosynthesis.
A lack of magnesium ions causes chlorosis. A disease in which the leaves of the plant turn yellow from bottom to top.
Nitrate ions
Nitrate ions in plants are needed for the build up of protein. Without nitrate ions, a plant would not be able to produce protein.
-
-
-
