The Effects of Light Intensity on the Rate of Photosynthesis Aim: To investigate the effects of light intensity on photosynthesis. Background: Photosynthesis is a process that plants undergo to produce glucose. The plant then uses the glucose to produce energy which the plant needs to sustain life. The chemical formula for photosynthesis is: Sunlight 6CO2 +6H2O → C6H12O6 + 6O2 Chlorophyll The plant requires light‚ carbon dioxide and
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BEAN LAB My hypothesis was the white beans would stand out but the black and green beans would be camouflage. For my prediction I said that if the predator consumes more white beans than black. Therefor‚ the white bean population will decrease. In the “beetles” environment the predominant colors are brown‚ green‚ black and tan; and the predominant colors for beans being brown‚ black‚ green and white. Knowing the predominant colors of the environment and of the “beetles” would show that the white
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covers assessment criteria 5 and 6 The Photoelectric effect‚ and the Production of Light In 1887 Hertz discovered the photoelectric effect‚ where electrons were emitted from a zinc surface when illuminated with ultra-violet light. These electrons (called ‘photoelectrons’) were only emitted when the frequency of the ultra-violet light was above a certain value (called the ‘threshold frequency’). Criteria 5c Assume that ultra-violet light is falling onto a piece of zinc‚ and photoelectrons are
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The Effect of Light Intensity The effect of different light wavelengths was tested in the following experiment. The rate of photosynthesis can be affected depending on the light treatment it receives. With the aid of DPIP acting as NADPH in photosynthesis‚ it was possible to observe the reaction as it took place. Samples were created with dark‚ 24 cm‚ 30 cm‚ and 49 cm light treatments. The absorbance was measured in five-minute intervals for each sample and recorded in an appropriate table
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References: Birth: | February 11‚ 1847 in Milan‚ Ohio | | Death: | October 18‚ 1931 in West Orange‚ New Jersey | | Swan Electric Light Company Joseph Wilson Swan (1828-1914) was a physicist and chemist born in Sunderland‚ England
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be defined as light energy being converted into chemical energy‚ which is a very important process for plants and other organisms. Light can be described in terms of light quantity and light quality. Both of these have an affect on photosynthesis. The more light a plant absorbs the more the plant is able to photosynthesize. This light is absorbed though pigments which have specific interactions with certain light waves (colors). The goal of my first experiment was to test the effect that which different
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Investigation of the effect of light intensity Equipment: * Data loga * Light sensor * Bulb * Metre ruler X3 Variables: Independent variable – distance of the light sensor from the light source (m) Dependant variable – intensity of light (lux) Control | Why it needs to be controlled? | How will you control it? | Bulb | There are different watts in different bulbs | Use the same bulb‚ but if your one does break half way through the experiment you can use another bulb with the
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THE EFFECT OF LIGHT INTENSITY DURING PLANT GROWTH ON THE SIZE OF STOMATA IN DICOT LEAVES Christina Durgan Nicole Romero Vanessa Chilunda Biology 101‚ Thursday 1:15pm Claire Burkum 5 December‚ 2013 1. The hypothesis of this study is that the size of the stomata on the dicot leaves exposed to higher light intensity will be smaller compared to the size of the stomata on the dicot leaves exposed to lower light intensity. This is because at higher light intensity there is an increase in environmental
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Different Colored Light on Plant Growth Puprose: Just as we are happier and healthier when we receive adequate sunlight‚ so are the plants and vegetation that we grow. Sunlight‚ or other means of artificial lighting is essential to help a plant grow into maturity. It is also necessary in aiding the plant to get the nutrients it requires to mature into a strong healthy plant. The process of the sun or other light helping to feed the plant is called photosynthesis. The light acts as an energy
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Plant Growth; Varying Light Exposures Intro and Hypothesis: The problem that is going to be answered is: will plant seeds grow at differently if they are covered by different materials while exposing them to the same amount of light? Also‚ which material will allow the plants to grow the most‚ tin foil‚ saran wrap‚ paper or no covering? Before the lab took place‚ it was hypothesized that the less light a plant receives‚ the less it will grow and the more light it receives‚ the more it will grow
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