measure the relative intensities of light at various horizontal distances from the lamp. The light detector (photocell) will enable us to make light intensity measurements that are more precise than those made with the human eye. The photocell converts light intensity to an electrical potential difference‚ which can be measured with a voltmeter. Using our measurements made from numerous elevations above the table‚ we assumed voltmeters were proportional to the intensity of light and observed a relationship
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Wavelength and Light Intensity on Photosynthetic Activity ABSTRACT The photosynthetic process of eukaryotes revolves around chlorophyll‚ the substance that give plants their green color. Plants convert light energy into chemical energy by means of photosynthesis. This experiment tests the reaction rates of a chloroplast suspension against variables of wavelengths and light intensity. Both a control and an experimental cuvette were exposed to a range of 450 to 750nm of light and varying intensities to test
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ammonia and die. Duckweed does not have a specific depth of water that it is required to grow in‚ however it is not ideal for the duckweed to grow in shallow conditions. If the pond is too shallow than the freezing and evaporating point of the pond will fluctuate too much for the duckweed to grow. Duckweed is composed of a think cell wall‚ with chloroplasts‚ mitochondria‚ smooth ER‚ Rough ER‚ a vacuole‚ cytoplasm‚ goolgi body‚ nucleus‚ nucleolus. All these parts in duckweed help the plant carry
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The Effect of Duckweed on Natural Pollutants: Part I- Introduction Duckweed: What is it? When you type in “duckweed”‚ or Lemnaceae‚ if you choose to use the scientific name‚ on your computer‚ you see countless entries on how to get rid of duckweed from your pond‚ how much duckweed can be a nuisance when it gets stuck in your fish filter‚ etc. However‚ this is a plant that can be underestimated. I chose to work with duckweed in my project because of the countless ways it can help the environment
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Title: How Does Both Only Light and Only Darkness Affect the Growth of Duckweed? Introduction: Question: How will all light or all darkness affect the growth of duckweed? If so‚ how drastic of change will it be? Background: Duckweed‚ one of the fastest reproducing organisms on the planet. “The duckweeds (genus Lemna) and related genera of the duckweed family (Lemnaceae) are the smallest flowering plants known.” (USDA common duckweed) Duckweed‚ only about .3 mm in diameter‚ are found in almost all
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The effect of nutrient concentration on duckweed growth Gina Neonakis Biology 203L:11 Biology 203:10 November 14‚ 2011 Abstract Lemna minor‚ or duckweed‚ is a small plant that floats on the surface of stagnant water that is usually rich in nutrients. Phosphorus is an important macronutrient in the growth of aquatic plants. We tested the effect of phosphorus on duckweed population growth using a control medium rich in nutrients and compared it to the population growth in a medium that lacked
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BIOLOGY PRACTICAL ASSIGNMENT NAME OF INVESTIGATION: Effect of Eutrophication on Plant Growth RESEARCH QUESTION: How does the process of Eutrophication affect the growth of Duckweed? HYPOTHESIS: In this experiment‚ we are basically testing the use of different fertilizers on the growth of Duckweeds. Plants need fertilizers for their growth and to increase the yield of crops. But‚ at the same time‚ it depends on which Fertilizer being used and in how much proportion. Does it have sufficient nutrients
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The Effect of Water on Germination and Plant Growth in Marigolds Question: How does the amount of water given to a plant affect how much it grows? Hypothesis: If I give water to a marigold seed then it will germinate and the plant will grow more than a seed not given water. Independent Variable (IV): the amount of water given a seed/plant Dependent Variable (DV): the amount of plant growth Control Group: The group of plants given water Experimental Group: The group of plants given no water
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The aim of this investigation is to see whether I can find a definite relationship between the light intensity onto the leaf’s surface and the surface area of the leaf. Hypothesis I think the light intensity could affect the surface area in the following way: ·A higher light intensity could make the surface area of the leaf larger. The reason I think a higher light intensity could make the surface area larger is the fact that there would be a larger amount of chlorophyll‚ containing chloroplasts
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think of weight training intensity does someone yelling phrases like those come to mind? Well if it does then you are partly correct‚ but what does weight training intensity actually mean? Following the thread of the last two articles ive done dealing with creating your own workout plan and defining training volume‚ today we’ll look at what training intensity is and how to apply it. WHAT IS INTENSITY IN WEIGHT TRAINING From my research ive found that training intensity meaning is actually
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