Light Reaction Photosynthesis Essays and Term Papers 1 - 25.
Light is an essential factor and source of energy for the chemical reaction that happens during photosynthesis. It is an endothermic process. A green pigment known as chlorophyll absorbs the light. This pigment is located in the chloroplasts of the plant cells.
To summarize, photosynthesis takes the raw ingredients of water, carbondioxide and uses light to make glucose and oxygen. Despite, respiration uses glucose and oxygen to produce carbondioxide and water as waste products. Both these processes takes place in cells except respiration takes place in the mitochondria of a cell.
The light reaction is a light-dependent process which includes a series of events such as light absorption, hydrolysis, the release of oxygen, formation of ATP and NADPH. The light reaction of photosynthesis initiates only when it is supplied with light energy. The photosystem is the arrangement of pigments including chlorophyll within thylakoids.
The light reactions of photosynthesis take place in the thylakoid membrane, whereas the dark reactions are located in the chloroplast str oma. 258 c 2016 The Author(s).
Factors Affecting Photosynthesis Many factors influence the rate of photosynthesis. Temperature, light intensity, and availability of water affect photosynthesis. C4 and CAM plants have a modified type of photosynthesis that enables the plants to conserve water in dry climates. The Light-Dependent Reactions: Generating ATP and NADPH.
Photosynthesis is split up into two sets of complex chemical reactions, dark and light reactions also known as the Calvin Cycle. Light reactions occur when sunlight energy is trapped by chlorophyll and the proton energy from it used to make ATP. This reaction depends on sunlight from it to occur.
Photosynthesis is the conversion of light energy to chemical energy. I occurs in two stages. These are the light reactions and the dark reactions. The light reaction takes place in the thylakoids. In the light reaction, light energy strikes antennae pigments of photosystem II, which contains several hundred molecules of chlorophyll a and.