Identifying sites of protein synthesis in Chlamydomonas using erythromycin and cyclohexamide as protein synthesis inhibitors. October 16‚ 2009 Introduction: In living cells‚ prokaryotic or eukaryotic‚ the synthesis (construction) of proteins is accomplished by similar machinery. Amino acids‚ ribosomes‚ messenger RNA (mRNA)‚ and transfer RNA (tRNA)‚ are all necessary for the building of functional proteins in a cell. Ribosomes are the site of protein synthesis in a cell‚ and there are two
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tubes Filter paper Chromatography paper Jar with lid - chromatography Pipette Funnel Mortar and pestle Acetone Grass Chlorophyll chromatography solvent Method – Firstly‚ I had the set up my experiment with all the apparatus which was provided to me. I used a mortar and a pestle to grind to grass which was provided in order to start off my experiment. I also added some acetone to the chromatography jar to make the soft mixture and to get the liquid out of it. Suddenly‚ I started to see
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Introduction Metallic yarns or threads‚ in general‚ have been known for more than 3000 years. Gold and silver were hammered into extremely thin sheets‚ then cut into ribbons and worked into fabrics. These were the first ‘man made’ fibres‚ which came thousands of years before nylon or rayon. The Persians made fabulous carpets with gold thread and the Indians‚ ornamental sarees with it. The metal threads were twisted‚ doubled or wrapped around some other thread such as cotton. With the advancement
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detergents‚ each of them were placed into different solvents to see if they dissolved. None of the oils and fats were soluble in water (H2O)‚ sodium hydroxide (NaOH)‚ or hydrochloric acid (HCl)‚ but they were soluble in toluene and partly soluble in acetone. Testing the soaps and detergents for their solubility in water is the most important solubility test because they should form a lather that allows them to clean easily. Most of the soaps and detergents did not readily dissolve in water‚ but with
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drops 12M HCl. Precipitate Decantate Centrifuge and separate. Let stand for 1 min. Acidify with 6M HOAc and add several KNO2 crystals Acidify with 1 M HCl and add several NH4CNS crystals. Warm mixture. Add equal volume of acetone or ethanol and agitate the mixture afterwards. Formation of yellow precipitate indicates presence of Co3+. Formation of bright reddish pink precipitate means presence of Ni2+. Formation of blue colored solution shows presence of Co2+.
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12/14/13 Pre 3 Reduction of a Ketone WebAssign Pre 3 Reduction of a Ketone (Lab 3) Current Score : 60 / 60 Emmaline Smith C H 224‚ section 043‚ Fall 2013 Instructor: Aaron Francis TA Due : Wednesday‚ September 18 2013 08:10 AM EDT The due date for this assignment is past. Your work can be viewed below‚ but no changes can be made. 1. 10/10 points | Previous Answers NC SUMEOrgC hem2 3.PRE.001. What is the IUPAC name of the following compound? 5-methyl-3-heptanone 5-ethyl-3-hexanone
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11. Determine the percent pure for each component of the mixture. 12. Pour some of each fraction into three separate vials‚ label and store. 13. Disassemble and clean the fractional distilling apparatus using hexane for the joints and acetone for the glassware. III. Observations O O O O Ethyl Acetate Butyl Acetate (boiling point ~ 78◦C) (boiling point ~ 120◦C) Initial temperature of fractional distillation apparatus:
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Methods and Materials involved A tablet is a mixture of active substances and excipients usually in powder form‚ pressed or compacted into a solid. The excipients include binders‚ glidants (flow aids) and lubricants to ensure efficient tabletting; disintegrants to ensure that the tablet breaks up in the digestive tract; sweeteners or flavours to mask the taste of bad-tasting active ingredients; and pigments to make uncoated tablets visually attractive. A polymer coating is usually applied
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compound. However at low temperatures benzoic acid is insoluble in water. Compounds are soluble in solvents with the same polarity‚ like dissolves like. Table 1.1 Benzoic Acid solubility Dissolve Heat Ice H2O No No No Ethanol Yes Yes Yes Hexane No No Acetone Yes Yes Toluene No Yes No The benzoic Acid was dissolved in a very small amount of hot ethanol once dissolved water was added drop wise using a disposable pipet until it got cloudy. Once it reached this point the substance was removed from the
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A vast area of the North Pacific Ocean‚ often referred to as the “Great Pacific Garbage Vortex” is an area heavily concentrated in marine debris such as plastic and various other chemicals leaching into marine ecosystems and creating detrimental environmental and health impacts. The garage patch is divided into an Eastern patch located off the coast of California and a Western patch found off the coast of Japan‚ that work collaboratively to spin the marine debris. The North Pacific Subtropical Convergence
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