Biology- Photosynthesis

Topics: Photosynthesis, Light, Chloroplast Pages: 2 (461 words) Published: May 6, 2013
Maria RuizFeb.7, 2012Bio. Report

Dows light intensity and wavelength affect Photosynthesis?

Photosynthesis is the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a byproduct. It produces sugar and other organic compounds such as lipids and proteins. The sugars are then used to provide energy for the organism. Light reaction is the series of biochemical reactions in photosynthesis that require light energy that is captured by light-absorbing pigments; such as chlorophyll, to be converted into chemical energy in the form of ATP and NADPH. Light reactions occur mostly in the thylakoid stacks of the grana. The light-independent reactions, is a light-independent series of reactions which occur in the stroma of the chloroplasts, when the products of the light reaction, ATP and NADPH, are used to make carbohydrates from carbon dioxide ( Light intensity and Wavelength). The light-dependent reaction, in this case would be the ATP Energy from light is like a forcing of electrons to flow from water to NADP in the chloroplast. The electrons retain energy in the NADPH. Some of the NADPH is used to synthesize ATP. NADPH and ATP are the products of the light reactions of photosynthesis.

The more energy that enters cell the better Photosynthesis will work. When the wavelength increases and the light strength is at a constant, then the ATP will decrease, because the wavelengths will be longer and the energy would be less. While shorter the wavelengths are, the more ATP it has, or the more energy it contains. When the wavelength is at a constant measure and light intensity is increasing- ATP production will increase as well.


The question was: Does light intensity and wavelength affect photosynthesis? The answer for this is, yes...
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