Investigating the Link Between Wavelength of Light and Rate of Photosynthesis PROBLEM ======= I have been asked to investigate the link between wavelength of light and rate of photosynthesis. HYPOTHESIS ========== I predict that the order of best absorption in a plat to produce more bubbles will be blue, yellow, orange, red and finally green. I predict this because blue has the shortest wavelength which produces the most energy and there is slightly higher absorption in the blue region by the plant. The red has the largest wavelength in the visible spectrum which produces the least energy. The reason why green is at the bottom of the list of absorption in a plant is because …show more content…
They absorb light energy and enable it to be converted into chemical energy which is used by the plants to make glucose and oxygen from carbon dioxide and water. Plants appear to be different colours because of the dominant pigments they contain. These pigments absorb some colours of light and reflect others, for example, the green chlorophylls absorb light from the blue-violet and the red regions of the visible spectrum and reflect green light. This is why plants which contain mostly chlorophylls appear green. Other pigments found in green plants, the yellow, orange and red carotenoids which absorb light only from the blue-violet region of the spectrum, are mostly masked by the more dominant chlorophyll. [IMAGE] This work[IMAGE] We can see how different wavelengths of light affect photosynthesis by looking at action spectra. An action spectrum relates the rate of photosynthesis to the wavelength of light being received by a plant. For green plants, including algae, the action spectrum shows that …show more content…
Photosynthetic activity is lowest in green light since green light is hardly absorbed at all by these pigments. The relative absorption of light of different wavelengths by pigments can be shown in absorption spectra. Action and absorption spectra correspond quite closely. Wavelengths of light which are more readily absorbed by photosynthetic pigments cause higher levels of photosynthesis. Some plants live in conditions where the spectral quality of light may be different to that received by plants living on the land. Algae which live in surface waters tend to be green and contain more or less the same pigments as land plants since they exist under similar light conditions. Algae living lower in the water receive more blue light than red because red light has a relatively long wavelength and cannot penetrate water as well as blue light which has a shorter wavelength and more energy than red light. Brown algae, which may be found deeper in the water than green algae, have combinations of pigments which enable them to
They are used to produce glucose which is used as plant food and growing materials (e.g. cellulose).A leaf which is exposed to plenty of light will have sufficient amounts of food and will not need an excessive amount of chlorophyll. This enables the leaf to have a small surface area. It is also necessary for leaves in areas of high light intensity, and thus high temperature, to have small leaves to reduce the amount of transpiration. The heat will cause water to evaporate a lot faster. Leaves in shaded areas will need a large surface area full of chlorophyll to collect as much sun light as possible; essential for survival.
to this rigid structure of the plants and so, it is very useful as a
The red pigment and the green pigment will follow the alcohol higher on the coffee filter than the yellow pigment. There will only be chlorophyll left in the spinach leaf, the yellow leaf will contain chlorophyll and xanthophyll & the red leaf will contain chlorophyll, carotene, and xanthophyll. My hypothesis was supported.
released from the plant will be counted. The lamp will be adjusted to different distances from the plant to try and obtain different results. Then the. Light The equation for photosynthesis is: Chlorophyll [ IMAGE ] Carbon Dioxide + water Glucose + oxygen Method First of all, I collected all my apparatus. Then I filled both the beaker and the measuring cylinder with water.
"Photosynthesis chlorophyll light intensity temperature carbon dioxide factors affecting rate." Photosynthesis chlorophyll light intensity temperature carbon dioxide factors affecting rate. N.p., n.d. Web. 19 May 2014. .
product and glucose levels. Plants trap the energy in sunlight using chlorophyll, a light trapping pigment found in leaf plant cells. It then uses carbon dioxide which enters the plant through small holes found. on the underside of the leaf called stoma and water which enters the
The Effect of Light Intensity on Photosynthesis Of Elodea Canadensis Introduction I wanted to find out how much the light intensity affected the Photosynthesis in Elodea Camadensa. I decided to do this by measuring the amount of oxygen created during photosynthesis. Photosynthesis is the procedure all plants go through to make food. This process uses Carbon dioxide, water and light energy. It produces Oxygen and Glucose.
Water is one of the factors that affect photosynthesis. A shortage of water can slow down or even stop photosynthesis. Temperature is also a factor. Photosynthesis depends on enzymes that function best between 0°C and 35°C. Temperatures above or below this range may damage the enzymes, slowing down the rate of photosynthesis. The intensity of light also affects the rate at which photosynthesis occurs. Increasing light intensity increases the rate of photosynthesis. After the light intensity reaches a certain level, the plant reaches its maximum rate of photosynthesis.
* Count the number of bubbles seen in 1 minute which is a way of
Increasing the light intensity will make photosynthesis faster. Variables: In this experiment there are a few things we have to keep the same.
Sunlight fuels the planet and photosynthesis converts that solar energy into energy that plants transfer into the food chain. Photosynthesis provides plants with sugars and plant proteins that are important for animals as well as for human agriculture. Most people know the general idea behind it, but there are so many complicated processes that make up the entirety of photosynthesis. Different aspects of photosynthesis, the photosystems, and the photosynthetic pathways are still studied today because not everything about how they work and operate is known.
Photosynthesis is a process in which plants and other organisms convert the light energy from the sun or any other source into chemical energy that can be released to fuel an organism’s activities. During this reaction, carbon dioxide and water are converted into glucose and oxygen. This process takes place in leaf cells which contain chloroplasts and the reaction requires light energy from the sun, which is absorbed by a green substance called chlorophyll. The plants absorb the water through their roots from the earth and carbon dioxide through their leaves.
The Effect of Light Intensity on the Rate of Photosynthesis in an Aquatic Plant Introduction The input variable I will be investigating is light, as light is just one of the 4 factors required in the green-plant process of photosynthesis. Photosynthesis is the process by which green-plants use sunlight, carbon dioxide, water & chlorophyll to produce their own food source. This process is also affected by the temperature surrounding the plant (the species of plant we experimented with, pond weed, photosynthesised best at around 20 degrees centigrade.) Light, temperature & CO2 are known as limiting factors, and each is as important as the next in photosynthesis. Light is the factor that is linked with chlorophyll, a green pigment stored in chloroplasts found in the palisade cells, in the upper layer of leaves.
however it does not easily absorb green or yellow light, rather it. reflects it, this decreases the rate of photosynthesis. This can