photosynthesis

The whole process of photosynthesis occurs in the chloroplast,
which often present in the mesophyll cells in leaves of most green plants .
Photosynthesis is generally divided into to two parts ,
The first part , the light reaction , this reaction is dependent on light .
This stage of photosynthesis occur in the thylakoid membrane .
The second part , the dark reaction is independent on light .
This stage of photosynthesis occur in the stroma .

green plants have to carry out photosynthesis to make food for themselves. During photosynthesis, green plants use carbon dioxide and water as the raw material, and energy from sunlight to make their own food. the food is stored in the form of starch and oxygen is also produced as the by-product. photosynthesis take part in the chlorophyll which is the green part of the leaf.

light energy
carbon dioxide+water ----------------------- starch+oxygen
chlorophyll

the word equcation

Photosynthesis is an ababolic process inside chlorplasts.Chlorophyll absorbs light energy to drive this process. Carbohydrates are produced from carbon dioxide and water, and oxygen is released as a by-product. All reactions are catalyzed by enzymes.

Photosynthesis is a process that converts energy in sunlight to chemical forms of energy that can be used by biological systems. Photosynthesis is carried out by many different organisms, ranging from plants to bacteria. The best known form of photosynthesis is the one carried out by higher plants and algae, as well as by cyanobacteria and their relatives, which are responsible for a major part of photosynthesis in oceans. All these organisms convert CO2 (carbon dioxide) to organic material by reducing this gas to carbohydrates in a rather complex set of reactions. Electrons for this reduction reaction ultimately come from water, which is then converted to oxygen and protons. Energy for this process is provided by light, which is absorbed by pigments (primarily chlorophylls and carotenoids). Chlorophylls absorb blue and red light and carotenoids absorb blue-green light, but green and yellow light are not effectively absorbed by photosynthetic pigments in plants; therefore, light of these colors is either reflected by leaves or passes through the leaves. This is why plants are green.
參考資料:
http://photoscience.la.asu.edu/photosyn/education/photointro.html

depends on what it is.. for plants or vegetables, photosynthesis usually takes place on skin or leaves