Cellulose makes up most of the tough cell walls surrounding plant cells and enables plants to stand upright, according to Education Portal. It is the major component of plants that makes the branches, stems and leaves very strong.Know More
Cellulose is a valuable polysaccharide and the most abundant organic compound in the planet, notes Education Portal. All plants are composed of polysaccharides, which are large sugar molecules consisting of single sugar units. The four common polysaccharides are cellulose, chitin, glycogen and starch. Cellulose has a unique, rigid structure that serves an important function in plants. Its molecules are joined together using hydrogen bonds and are arranged parallel to one another, forming a long, cable-like structure that merges with other cellulose molecules. This creates the strong support structure that allows plants to stand upright.
Education Portal explains that the strength of cellulose makes it useful in various synthetic products, including plastics, fabrics, cosmetics, lotion and carpeting. Cellulose is also an essential component of paper, cotton fabric and lumber. Moreover, cellulose plays a key role in digestion, as it is an insoluble fiber that does not break down when passing through the digestive system. Insoluble fiber is important in a person's diet, because it allows the digestive tract to keep moving.Learn more about Botany
Plants provide food to people and animals, regulate the water cycle, create oxygen and provide a habitat for other species. Without plants, life on Earth would not be sustainable for most species, including humans.Full Answer >
Plants need photosynthesis because the process fuels them with the energy that they require to survive. Plants create energy through photosynthesis by absorbing sunlight and converting it into sugar, lipids, proteins and other organic compounds. These compounds are forms of chemical energy and are fundamental for sustained growth and survival.Full Answer >
Plants produce oxygen and carbohydrates from carbon dioxide and water through the process of photosynthesis. Sunlight reacts with chlorophyll in the plant's leaves, and the plant stores that energy in the chemical bonds of carbohydrates. Oxygen is released into the atmosphere as part of the plant's respiration cycle.Full Answer >
Humans need plants for a number of reasons, with the two most important ones being to provide oxygen and food. Additionally, plants give fuel, fiber, medicine and materials for shelter. They can also be useful in cleaning toxic soils, filtering particles from the air, stabilizing soils and acting as an insecticide.Full Answer >