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... More »

The raw materials that are used in photosynthesis are carbon dioxide and water. These raw materials, combined with energy from sunlight, are used to produce usable energy in the form of glucose, along with a waste produc... More » Science Biology Botany

Glucose, the primary product of photosynthesis, is a sugar formed from carbon dioxide and water molecules that acts as the primary food source for green plants. A secondary product of the process, oxygen, is released int... More » Science Biology Botany

Photosynthesis is the process by which green plants manufacture their own food. The process takes place in small structures within the plant’s cells called chloroplasts. Photosynthesis evolved about 3 billion years ago, ... More »

Photosynthesis, which is the process through which some living organisms, including most plants and some fungi, make their own food, produces oxygen as a waste product. The process of photosynthesis in plants is the reve... More »

Photosynthesis is the process that plants use to convert the energy in sunlight into food that they use for energy. In order to carry out photosynthesis, plants need not only sunlight but also water and carbon dioxide. T... More »

Photosynthesis is the ultimate source of the energy for all the food that humans require, as well as the source of the energy used to build the biological materials that humans use, such as wood, cotton and wool. It is a... More »