The two main output products of photosynthesis are oxygen and sugar. Plants use energy from the sun to produce these items from water and carbon dioxide. The oxygen produced is emitted as a waste product, while the sugar is used to produce energy through cellular respiration.Know More
Photosynthesis takes six molecules of carbon dioxide and six of water and uses sunlight energy to convert them into six molecules of oxygen and a single sugar molecule with the structure C6H12O6. The oxygen produced in this chemical reaction provides the essential ingredient for respiration by humans and other animals; photosynthesis is thus necessary for both plants and animals to survive.
Photosynthesis occurs inside plant cells in a material called chlorophyll. This substance is what gives plants their green color. Chlorophyll absorbs energy from sunlight, particularly from the red and blue wavelengths; the green wavelengths are reflected away from the chlorophyll, giving a green appearance. This energy is required to make the chemical bonds that allow photosynthesis to take place.
In order to achieve photosynthesis, a plant must have access to water, sunlight and carbon dioxide. However, different environments provide different access to these resources. For example, desert plants have very limited access to water. As a result, plants have evolved to maximize their local resources. Broad leaves provide massive surface area to volume ratios, ensuring maximum access to sunlight. Similarly, some plants have extensive root systems to provide greater access to water.Learn more about Botany
The two main functions of roots are to deliver water and nutrients to the plant or tree and provide an anchor that keeps the plant or tree in the soil. Roots are generally the first part of any plant that emerges during germination.Full Answer >
The two main types of root systems are taproots and fibrous roots. A taproot consists of a single large, central root with smaller side roots, while fibrous root systems consist of networks of many small roots.Full Answer >
The two main groups of minerals are the silicates, which are formed from oxygen and silicone, and the non-silicates, which are not composed of silicone and oxygen. Silicate minerals are the largest class of minerals, while non-silicate minerals vary greatly with regard to structure and composition.Full Answer >
Photosynthesis is necessary because it forms the basis of the food chain. Photosynthesis, which occurs in green plants and algae, is the process by which sunlight combines with carbon dioxide, water and a chemical called chlorophyll to produce simple sugars. These sugars provide the plants with an energy source, and, when they are eaten by a predator, these sugars provide energy for the animal.Full Answer >