Good morning in this video we'll be discussing autotrophic nutrition in plants like other living organisms. Plants also need organic food to fulfill their requirement of energy for various activities. Green plants are autotrophic in the sense that they synthesize organic food by the process of photosynthesis. Photosynthesis can be split that is photon and synthesis.
Photon means light synthesis means putting together that is photosynthesis is the synthesis of food with the help of light. Which is the most important process on earth by which the green plants, synthesize complex carbohydrates, organic wood and revolve molecular oxygen from simple inorganic substances like carbon dioxide and water with the help of light energy. The process of photosynthesis can be defined as the conversion of light energy that has radiant energy into chemical energy, locked in carbohydrates by the green parts of the plants. We will now get the question that other colored plants can or cannot.
Perform photosynthesis, they can most of the plants have green colored leaves. Some plants. However, have leaves of other colors, such as red violet, brown the leaves having colors other than green also have chlorophyll in them. Actually the large amount of red violet, brown or other pigment in such leaves mask, the green color of chlorophyll. So photosynthesis also takes place in leaves having color other than green. Thus, photosynthesis is the most important process in nature by providing for.
Food supply to the biological world and purifying the atmospheric r by consuming carbon dioxide and evolving oxygen. The overall simple equation of photosynthesis is six co2, plus sch wall h2o in the presence of sunlight and chlorophyll gives c6h12o6 plus 6h2o, plus 602. The next topic in the chapter is photosynthetic pigments. What are pigments or the colored organic substance, which absorbs visible light? Visible light is significant because green plants make most effective use of this light in.
The process of photosynthesis, visible life can be sunlight, the visible light or white light is composed of wavelengths of seven different colors. Violet, indigo, blue, green, yellow or enchanted, whip gr, the green pigments of green plants absorb visible light. The most significant among them is chlorophyll. We may get a question that where does this chlorophyll is present? We know that that is present in leaf, but where it is specifically present. So let's get the answer photosynthesis does not occur in all.
Cells of green plants, it occurs only in those cells, which possesses the green colored plastics called chloroplast chloroplasts are not found in the upper and lower epidermis of green leaves. They occur in mesophyll leaves that can occupy the space between upper and lower epidermis. So what is epidermis the epidermis is a productive tissue.
What is tissue a group of cells similar in structure that work together to perform a particular function forms a tissue? So what is cell the bodies of living. Organisms are made of microscopic units called a cell. The cell is the basic structural and functional unit of life. It is first discovered by Robert hook. A cell means a little room that is cell as derived from the Latin word cellular, which means a little room.
So a group of cell constitutes the tissue and the protective tissue is epidermis. We get some answers. So what is epidermis? We don't get the answer for that. The epidermis is usually present in the outermost layer of the plant body, such. As leaves flowers stem and roots, which acts as protective tissue. Epidermis is one cell thick and is covered with cuticle.
The main function of epidermis is to protect the plant from desiccation and infection. So we found what is epidermis. So this is the introduction of autotrophic nutrition in plants.