The effect of water and fertilizer on corn seedlings Biology 1108 Lab Section November 7‚ 2012 Abstract The effect of water and fertilizer on corn seedlings was examined. It was hypothesized before the experiment that enough water with sunlight and air should make the plants grow healthy. It has to do with photosynthesis. Fertilizer is also going to make the plants grow much faster; this is because of the nutrients in it. The experiment took about four to six weeks to complete; it took some
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Plant Pigment Lab Question: What pigments are present in Red Wandering Jews? Background: A leaf is filled with many pigments. The pigments are usually masked by the prevalence of the green chlorophyll. Anothocyanin(red or purple)‚ carotene(orange)‚ and xanthrophyll(yellow) are found in different proportions in different leaves. Leaf pigments can be separated by using paper chromatography. Paper chromatography is a technique that extracts pigments into a paper filter called chromatogram. What are
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The purpose of this lab is to look at different effects of paraquat toxicity which causes changes in the lipid membrane bilayer of chlorosplasts (makes it leaky) and the formation of malondialdhyde in the bean Phaseolus vulgaris‚ by isolating the choloroplast‚ determining the chlorophyll concentration‚ determinating the protein amount by making a standard curve‚ and to exam the X-Ray diffraction. In addition‚ the purpose of this lab was also to gain experience in the lab by perfroming different
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AP Biology Lab Four: Plant Pigments and Photosynthesis Abstract: The purpose of this lab is to separate and identify pigments and other molecules within plant cells by a process called chromatography. We will also be measuring the rate of photosynthesis in isolated chloroplasts. Beta carotene‚ the most abundant carotene in plants‚ is carried along near the solvent front because it is very soluble in the solvent being used and because it forms no hydrogen bonds with cellulose. Xanthophyll is found
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helping to feed the plant is called photosynthesis. The light acts as an energy source to help the plant separate carbohydrates from carbon dioxide. Moisture mixes with this and turns into a glucose and feeds the plant. The plant in turn releases oxygen into the air to make the air we breathe cleaner. In our plant lab‚ we use the different colors of light to help our plant grow. We used red‚ blue‚ normal classroom lighting and no lighting for lab. The purpose of this lab whether or not light had an effect
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Bibliography: Johnson‚ J. J. (n.d.). Lab Report . Retrieved 3 1‚ 2014‚ from IB Biology Higher Level: http://www.edu.pe.ca/gray/class_pages/smaccormack/leaf_disc_photosynthesis_write_up.pdf Photosynthesis. (n.d.). Retrieved 3 1‚ 2014‚ from IB Guide: http://ibguides.com/biology/notes/photosynthesis-hl
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Lab Design “Investigate the effect of a factor on the number of stomata of a leaf.” Research Question: How do differing leaf heights affect the number/density of stomata of a leaf? Hypothesis Stomata are pores‚ typically found under the leaf (lower epidermis)‚ that control the gas exchange of transpiration‚ where water vapor leaves the plants‚ and carbon dioxide enters. I predict that the stomatal density on high leafs is higher than on low leafs. During photosynthesis the chloroplasts
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wavelength. Introduction Photosynthesis is a process by which plants use the sunlight to convert it from light energy into chemical energy. This equation shows us how it is done‚ 6CO2 + 6H2O + light energy --> C6H12O6 + 6O2. The pigments called chlorophylls in the plants are what trap the light energy. Carotenoids also help aid the chlorophylls by also absorbing light. The two chlorophylls found in green plants are chlorophyll a and chlorophyll b. The purpose of this lab is to extract the pigments
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IS PHOTOSYNTHESIS WAVELEGNTH DEPENDENT? THE EFFECT of different COLOR FILTERS ON The rate of photosynthesis in english ivy leaves author: Cherylle chapman partners: sharif alston‚ ALEX SAFAVOV & EDuardo vie (Group 3) OBSERVATIONS & HYPOTHESIS In the lab‚ we observed green plant leaves convert light energy into chemical energy by using photosynthesis. The species of green plant leaves that were used in this experiment were Hedera helix‚ commonly known as English Ivy. These plant leaves have both
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BIOL2220 Lab 3: Hill Reaction Introduction In 1937‚ Robert Hill discovered that isolated chloroplasts can generate oxygen when they are illuminated in the presence of a suitable electron acceptor‚ even in the absence of carbon dioxide. This finding was a landmark in the study of photosynthesis because it established that the source of the electrons used in the light reactions is water. It also confirmed that the released oxygen is derived from water instead of carbon dioxide. In chloroplasts
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