Discovering photosynthesis by experiments 6 this experiment tests the influence both of the light colour (red, blue, green, and white) and of the light intensity on the photosynthesis rate. Light intensity in c4 plants (3) and, in c3 plants, a surprisingly highlevel of 02 uptake, the competition between 02 and co2 for reducing power, and the independence ofthe production ofre. The students can be allocated to investigate a particular factor that affects the rate of photosynthesis, or they can choose from this list, or they can develop their own ideas light intensity or distance of the elodea from the lamp.
The intensity of light is an essential element in the process of photosynthesis at certain point in the conversion phases of photosynthesis, the amount and strength of light proportionate the rate of photosynthesis. Research question: how does light intensity affect the rate of photosynthesis more precisely the rate of reaction in photosystem ii, at the primary acceptor location hypothesis: in the light dependant reactions, an artificial electron acceptor, dcpip can be substituted for nadp it is very similar to this molecule but changes colour when it is. The purpose of this experiment is to test whether factors such as light intensity and level of carbon dioxide, will affect the rate of photosynthesis, which are the two most important variables in the photosynthesis process.
Sun plants experience an increased rate of photosynthesis as light intensity increases leaves on a sun plant tend to be smaller and thicker, with more pronounced lobes than shade plant leaves special cells in these leaves allow higher rates of photosynthesis. At low light intensities, the limiting factor governing the rate of photosynthesis is the light intensity as the light intensity increases so does the rate but at high light intensities one or more other factors must be limiting, such as temperature or carbon dioxide supply. The number of light photons hitting the chlorophyll pigments increase as the light intensity rises this in turn increases the rate of photosynthesis the whole process is so effective that in optimum conditions 90 percent of light is absorbed.
An increase in light intensity will increase the rate of photosynthesis if the light is low then the rate of photosynthesis will also be slow according to molina d and alegrors (2009) without enough light a plant cannot photosynthesise very quickly even if there is plenty of water and carbon dioxide. Light intensity has a very large effect on the rate of photosynthesis in most cases, the more light the faster photosynthesis occurs however, at some point there's a limit that the rate of photosynthesis cannot increase above. Light conditions affect directly the growing and photosynthesis of microalgae (duration and intensity) photosynthesis, it needs light for a photochemical phase to. 1) the variables of light intensity, temperature, carbon dioxide, light quality all influence the rate of photosynthesis 2) photosynthesis requires carbon dioxide to furnish the carbon required to make glucose. Wavelength and intensity affect the rate of photosynthesis by slowing or speeding to process based off of how much light and what type of light that the plant is being exposed to the data shows that the most ideal setting for a plant would in high intensity, violet light based.
If the concentration of co 2 is increased, the rate of photosynthesis will go up with the same light intensity clearly, co 2 is the limiting factor increase in the co 2 concentration till it attains 5 cc level will result in an increase in the rate of photosynthesis. In this lab, students calculate the rate of photosynthesis in an elodea plant by changing the intensity of the light source students count the number of bubbles produced in a minute, then they graph the results and depend the rate of photosynthesis by calculating the slope of the line. Discrete biology practical preformed by emad zeidan, the international academy - amman.
-at maximum rate more light intensity will have no effect and the rate will plateau because chlorophyll is saturated by light -different wave lengths have different affects on the rate how does the concentration of carbon dioxide affect the rate of photosynthesis. But because light intensity is also a limiting factor of photosynthesis, the rate of photosynthesis could go up and up and reach its maximum level so, if it would be shown in a graph, the graph would show a line going up and up and eventually continuing as a straight line. However, when light intensity reached 90 μmol −2 −1, sod activity was found inversely, which probably related to the susceptibility of the plant to photodamage or to a higher temperature around the plants under high light intensity.