quickly diffusion occurs is dependent on several factors‚ such as temperature‚ particle size‚ and the concentration difference on either side of the membrane. Testing the hypothesis relating to the effect of molecular weight to the diffusion rate‚ agar plate set-up was used to observe the diffusion of different substances. The methylene blue and potassium permanganate (KMnO4) was used and placed in the plate. Because the two substances have distinct colors‚ the measurement of the diffusion zone was
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was in order to test the many effects of diffusion and osmosis amongst four experiments. One such experiment was testing the effects of molecular weight on diffusion in relation to the use of Agar. The methods performed included the use of two acids‚ HCl and acetic acid. Both acids were placed into an Agar-filled dish and‚ over increments of 15 minutes‚ data collection was taken based off the diffusion rate and the diameter length of both the HCl and the Acetic Acid. The resulting factor was the
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____________________ ABSTRACT The effect of molecular weight on the diffusion of substances were tested through the use of agar-water gel with three wells placed in a petri dish. Drops of three different substances namely: Potassium permanganate (KMnO4)‚ Potassium dichromate (K2Cr2O7) and Methylene Blue were placed in the wells of the agar-water gel in the petri dish. The diameter of the diffused substance was noted every 3 minutes for 30 minutes. The Potassium permanganate (KMnO4)
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anti-semticism‚ extreme nationalism‚ preservement of the totalitarian government when hitler became Chancellor in 1933. The young hitler had already formulated Nazi policies‚through his experiences. These formulated ideas and philosphies he wrote in Mein Kampf during his imprisonment became implemented as policy when he became supreme ruler of Germany in 1934. Hitler intentionally joined the _______party consisting of only 40 members at the time so that it could be a forum of his own ideas which he
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The Results from the Gram positive tests indicated that the unknown #4 was Streptococcus pyogenes. All seven tests on the unknown matched S. pyogenes perfectly. The blood agar plate proved the unknown to be β hemolytic‚ meaning the unknown bacteria was capable of complete hemolysis. This test separated the unknown into the β Streptococcus group‚ narrowing the possible bacteria to S. aureus or S. pyogenes. The Catalase test was used to determine if the unknown could break down hydrogen peroxide
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Digital image. Flickriver.com. Flickriver Viewer Software‚ 2007. Web. 3 Nov. 2013. An endospore stain of Bacillus cereus using malachite green. Digital image. Academic.missouriwestern.edu. N.p.‚ n.d. Web. 3 Nov. 2013. Hahn‚ Brittany. Phenyl Ethyl Alcohol agar. Digital image. Studyblue.com. STUDYBLUE INC.‚ 22 Apr. 2013. Web. 3 Nov. 2013. Reynolds‚ Jackie. Selective and differential media. Digital image. Www.microbelibrary.org). Kern Community College District‚ 12 Sept. 2011. Web. 3 Nov. 2013. Rose‚ Scott
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Unable to read the Gram Stain at first it was later confirmed that Unknown #7 was a gram negative bacteria. When introduced to Starch Unknown #7 produced no zone of clearing showing that it did not contain the enzyme amylase. When introduced to the Lipid Unknown #7 did produce a zone of clearing indicating that it did contain the enzyme lipase. When introduced to Casein Unknown #7 produced no zone of clearing indicating that it did not contain the enzyme protease. When streaked onto the Gelatin‚
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he root system is developed in the soil since soil can help establish their strand and protect the fragile roots from stressful conditions such as drought‚ nutrient deficiency‚ unfavourable temperature‚ etc. Hydrotropism is a directional growth response exhibited in terrestrial plants in which water or water vapour is the orienting stimulus. In hydrotropism the root caps perceive and respond to moisture gradient of the soil simultaneously which will then regulate the directional growth of the root
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Permanganate‚ Potassium Dichromate‚ and Methylene Blue.1 Arantxa Alex Carpio Group 1 Sec. X – 4L March 24‚ 2015 ABSTRACT The effect of molecular weight and time on the rate of diffusion was determined using the agar-water gel test. A petri dish of agar-water gel with three wells was prepared and a prepared solution of each substance was dropped on each well; one with potassium permanganate (KMnO4)‚ the other with potassium dichromate (K2Cr2O7)‚ and the last one with methylene blue
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The death of a loved one can break the heart forever‚ when people die it chips away little by little at the wall put up around the heart until there is nothing left but the exposed‚ helpless‚ beating heart. This is what happens to young Liesel Meminger in the novel the Book Thief by Markus Zusak. As the Liesel and her brother make their way toward their new home‚ Liesel awakes from her sleep to find the life of her brother taken away as he turns white like stone and becomes lifeless. Liesel and
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