Light Intensity

Observing Table A of the results of micro tourism, you can see that the result follows the inverse square rule. This is because the light intensity of the micro tourism decreases as the distance increases. A graph showing the inverse square law is shown in Fig. It is therefore evident that the inverse relationship between light intensity and the square of distance remains true under actual conditions and / or laboratory conditions. The reason is that Figure 1 is tested in the darkroom (under the laboratory) and Figure 3 is being tested with other light sources (real life conditions) such as sunlight.

Influence of light intensity on photosynthesis of Elodea canadensis I want to know how much light intensity affects photosynthesis of Elodea Camadensa. I decided to do this by measuring the amount of oxygen produced during photosynthesis. Photosynthesis is the process by which all plants make food. In this process, carbon dioxide, water, and light energy are used. It produces oxygen and glucose. Photo energy of carbon dioxide + water Glucose + Oxychlorophyll 6 ​​CO 2 + 6 H 2 O Light energy Photosynthesis of C 6 H 12 O 6 + 6 O 2 chlorophyll occurs in leaves of palisade plants.

As the intensity of the light increases, the rate of the light dependent reaction increases proportionally to normal photosynthesis. However, as the light intensity increases, the photosynthetic rate is ultimately limited by several other factors. Chlorophyll a is used in two optical systems. The wavelength of light is also important. PSI absorbs energy most efficiently at 700 nm and absorbs PSII at 680 nm. A high proportion of energy concentrated on these wavelengths produces a high photosynthetic rate

You can see the trend by looking at the luminosity map. It is understood that the photosynthesis speed is proportional to the light intensity. This is because, as the distance increases, there are the most fitting straight lines (this corresponds to decreasing light intensity as the distance increases). According to my prediction, if the distance doubles, the amount of bubbles will increase by half, but this will not occur between 10 cm and 20 cm. The pond is located 10 cm from the bulb, making an average of 25 oxygen bubbles. At 20 cm, the plant produces 20 cm, but it can not be half as much as 25. However, at 40 cm from the lamp, the pond produced an average of 8 bubbles slightly less than half of the twenty 20 bubbles. Therefore, there are several reasons for this prediction. Perhaps my results are a little unusual

The purpose of my experiment was to investigate the effect of light intensity on germination and growth of the cress. My hypothesis is that plants with low light levels will turn yellow, but plants with high light intensity will grow to maximum. Based on the results I gathered and my bar chart, you can see that I proved that my assumption is totally correct. Cress plants with darker light levels turn yellow, become higher and thinner, have long internodes and yellow stalks and leaves, do not show chlorophyll