Would anybody mind helping me with Photosynthesis?

Question

Well me and my class are going over photosynthesis in bio and I don't understand ,So would anybody mind explaining it Photosynthesis simply ...Please a website would also help :)

Answer 1

hi, try this website...it has a lot of goodies as well

Answer 2

Photosynthesis uses the energy of light to make the sugar and glucose. A simple general equation for photosynthesis follows

6 CO2(gas) + 12 H2O(liquid) + photons → C6H12O6(aqueous) + 6 O2(gas) + 6 H2O(liquid)
carbon dioxide + water + light energy → glucose + oxygen + water

Photosynthesis occurs in two stages. In the first phase light-dependent reactions or photosynthetic reactions (also called the Light reactions) capture the energy of light and use it to make high-energy molecules. During the second phase, the light-independent reactions (also called the Calvin-Benson Cycle, and formerly known as the Dark Reactions) use the high-energy molecules to capture carbon dioxide (CO2) and make the precursors of glucose.

Answer 3

Basically photosynthesis is when the chloroplasts within a plant cells turn sunlight into energy. Much like the mitochondria do within a animal cell. I know in an animal cell there is a name for the process called the "krebs" or "citric acid" cycle. Hope that helps.

Answer 4

Photosynthesis is basically the process in which plants take carbon dioxide from the outside world, mix it with water and sunlight, and they produce food for the plant (glucose) and release oxygen as a biproduct. The equation for photosynthesis is: 6CO2+ 6H2O+energy (sunlight) = C6H12O6+6O2.

Check here for more information: http://en.wikipedia.org/wiki/Photosynthesis

Answer 5

http://static.howstuffworks.com/gif/irrigation-photosynthesis.gif
It's a great pic. If you need more specific details, then here's another site:
http://www.emc.maricopa.edu/faculty/farabee/BIOBK/BioBookPS.html
Still has lots of pretty pictures to help :D I find pics the easiest way to grapple with all the new Bio terms.

Answer 6

phtosynthesis takes place in the presence of light.like animals plants also need nutrition.it is divided into 2 light and dark reaction.plants utilise the water and carbon dioxide and water to produce photosynthesis.
6co2+12h2o>c6h12o6+6h20+6o2 this takes place in presence of sunlight.photosynnthesis takes place mainly in two stages one is light dependent reaction or light reaction and the other is not dependent on light and is calleed dark reaction.

The light energy absorbed by a chlorophyll molecule excites some electrons within the structure of the molecule to higher energy levels, or excited states. Light of shorter wavelength (such as blue) has more energy than light of longer wavelength (such as red), so that absorption of blue light creates an excited state of higher energy. A molecule raised to this higher energy state quickly gives up the “extra” energy as heat and falls to its lowest excited state. This lowest excited state is similar to that of a molecule that has just absorbed the longest wavelength light capable of exciting it. In the case of chlorophylla, this lowest excited state corresponds to that of a molecule thathas absorbed red light of about 680 nanometres.

The return of a chlorophyll a molecule from its lowest excited state to its original low-energy state (ground state) requires the release of the extra energy of the excited state. This can occur in one of several ways. In photosynthesis, most of this energy is conserved as chemical energy by the transfer of an electron froma special chlorophyll a molecule (P680 or P700) to an electron acceptor. When this electron transfer is blocked by inhibitors, such as the herbicide dichlorophenylmethylurea (DCMU), or by low temperature, the energy can be released as red light. Such re-emission of light is called fluorescence. The examination of fluorescence from photosynthetic material in which electron transfer has been blocked has proved to be a useful tool for scientists studying the light reaction

The light energy absorbed by a chlorophyll molecule excites some electrons within the structure of the molecule to higher energy levels, or excited states. Light of shorter wavelength (such as blue) has more energy than light of longer wavelength (such as red), so that absorption of blue light creates an excited state of higher energy. A molecule raised to this higher energy state quickly gives up the “extra” energy as heat and falls to its lowest excited state. This lowest excited state is similar to that of a molecule that has just absorbed the longest wavelength light capable of exciting it. In the case of chlorophylla, this lowest excited state corresponds to that of a molecule thathas absorbed red light of about 680 nanometres.

The return of a chlorophyll a molecule from its lowest excited state to its original low-energy state (ground state) requires the release of the extra energy of the excited state. This can occur in one of several ways. In photosynthesis, most of this energy is conserved as chemical energy by the transfer of an electron froma special chlorophyll a molecule (P680 or P700) to an electron acceptor. When this electron transfer is blocked by inhibitors, such as the herbicide dichlorophenylmethylurea (DCMU), or by low temperature, the energy can be released as red light. Such re-emission of light is called fluorescence. The examination of fluorescence from photosynthetic material in which electron transfer has been blocked has proved to be a useful tool for scientists studying the light reaction

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