Plants absorb water through their roots, and carbon dioxide through their leaves. Some glucose is used for respiration, while some is converted into insoluble for storage. The stored starch can later be turned back into glucose and used in respiration. Oxygen is released as a by-product of photosynthesis.
The definition of photosynthesis is the process through which plants use water and carbon dioxide to create their food, grow and release excess oxygen into the air.
The diagram below shows the cross section of a typical plant leaf
Printout A plant is a member of the kingdom Plantae, a living organism that utilizes photosynthesis, a process in which energy from sunlight is converted to chemical energy (food).
The Z-Scheme Diagram of Photosynthesis
Photosynthesis and all associated reactions take place at the molecular level. These microscopic reactions involve several molecules aside from chlorophyll. Some of the other molecules are water (H2O), carbon dioxide (CO2), oxygen (O2), and glucose (C6H12O6). All of the components are necessary and the absence of any one of them causes the entire process to fail. For example, if there is no water available to the plant roots, they will begin to turn brown and die, effectively stopping photosynthesis. Oxygen and glucose are not used in photosynthesis, but are byproducts of the reaction. Oxygen is released into the air, and glucose is stored inside the plant cells.
The Flow of Energy Through Plants and Animals ..
Photosynthesis is not an immediate process. The entire chain of events will not occur as soon as the sunlight hits the leaves. Some of it will actually occur in darkness when there is no visible sunlight. Photosynthesis is split into two separate parts referred to light dependent and light independent reactions. The light dependent reaction happens when sunlight is captured and used to begin the process, resulting in the creation of a molecule known as ATP. ATP is a free energy containing molecule and is produced through a chain of steps starting when chlorophyll absorbs light energy. The light independent reaction creates glucose through the Calvin cycle, which uses the ATP and carbon dioxide to make sugar. Dark or light independent reactions occur in the stroma of the plant.
Learn with interactive diagrams of science, ..
Most leaves are flat and contain ; their main function is to convert energy from sunlight into chemical energy (food) through photosynthesis.
- the part of the stem of a plant from which a leaf, branch, or aerial root grows; each plant has many nodes.
Label the Diagram of Plant & Flower.
The diagram given in this Buzzle article is a small pictorial elaboration of the process of photosynthesis that will prove helpful for kids and teenagers to understand this vital process of the plant kingdom.