Question

diffrenciate between photosynthesis and photolysis

Answer 1

I think that using photosynthesis you can make a molecule of sugar and oxigen from carbon dioxide and water; and by photolysis H2-A+2photons=2H+A(example: H2O+2 photons=O2+2H)

Answer 2

Photolysis, if i remember correctly, is a part of photosynthesis. It is when the actual photons split the water molecules and creating Hydrogen and Oxygen.

Answer 3

Photosynthesis is the process by which plants and other organisms such as these algae from the Kingdom Protista take light energy and convert it into chemical energy in the form of carbohydrates. This one process is the source just about all the energy used by animals and other non photosynthetic organisms.
Photolysis refers to the use of light energy to break water molecules or some other electron donor, to obtain electrons for photosynthesis. The function of these electrons is to replace electrons lost by the photosystems to the electron transport systems. Photolysis involves a poorly understood proteins associated with photosystem II. Typically in photolysis water is the electron donor and it is split to yield hydrogen ions, oxygen and electrons. The situation is a bit similar to what happens in solar cells only there the electrons are recycled in the electrical circuit which returns electrons to the solar cell.

Photolysis is the source of most oxygen gas found in the earth's atmosphere. While oxygen is important for aerobic respiration, it is a waste product of photosyhtesis!