Unknown #1 Vomit Serratia marcescens & Bacillus cereus Biol 251 Microbiology 5/14/2009 Introduction The purpose of this study is to differentiate and identify two unknown organisms provided by the instructor in a nutrient broth. It is only known that the two organisms are from vomit; one is gram-positive and the other is gram-negative. It is necessary to first separate the two organisms by inoculating a nutrient agar plate using the streak-plate method. The
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NUTRITIONAL NEEDS Protein 4 calories/ g 0.8 g / kg / day Meat Fish Chicken Eggs Dairy Insufficient intake leads to muscle wasting and atrophy Carbohydrates 4 calories / g Starches Sugars (fructose‚ glucose‚ lactose‚ sucrose) and cellulose Fruits Vegetables Milk Grains Insufficient intake results in protein and fat metabolism Fats 9 calories / g Needed for ADEK vitamin absorption Animal products Egg yolks Organ meats (except liver) Butter Cheese Oils Insufficient
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At present‚ the raw materials to refine copper in China mainly are towanite‚ chalcocite‚ bornite‚ malachite and etc. According to the technical conditions of smelting‚ the copper ore can be divided into three classes based on the proportion of copper oxide and copper sulphide‚ that is‚ sulfide ore‚ which contains less than 10% copper oxide；oxidized ore‚ which contains more than 30% copper oxide; mixed ore‚ which contains 10%~30% copper oxide. Copper is one of earliest metals that be found and used
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clue. When the puzzle is complete‚ the Periodic Law will be displayed in the highlighted column.( by Bronwyn J. Nelson‚ Fairfield High School‚ Fairfield‚ Ohio.) 1. More outer electrons: Phosphorus or silicon? 2. Liquid at room temperature: cobalt or mercury? 3. Produces a yellow flame test: barium or sodium? 4. Can be cut with a knife: dysprosium or chromium? 5. Part of the lanthanide series: cerium or thorium? 6. Larger atoms: carbon or fluorine? 7. Very high ionization
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blue The forward reaction is endothermic. Materials 3 test tubes Test tube rack Solid cobalt chloride Distilled water Concentrated HCl Ice bath Hot water bath 10 ml graduated cylinder (for concentrated HCl) 2 droppers Spatula Tongs Digital balance Procedure 1.Label the test tubes 1-3. 2.Add 0.5g solid cobalt chloride to each test tube. 3.To test tube 1‚ add 4ml concentrated HCl. Use the graduated cylinder to transfer the acid. This will
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I bought my Chevy Cobalt on Halloween 2006. On that particular fall day‚ all the warm colors that the season had to offer were essentially highlighted by the brightness of my yellow car. As time passed‚ I began to notice that everyone would stare at me when I drove by or pulled into a parking lot. I was wondering what all the fuss was about‚ so I stepped back and looked at my car. At that moment I had actually fell in love with distraction that I had just purchased. When you first walk up to my
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soluble or insoluble. Materials and Methods: I first pulled out the small wells and place two drops of the Cobalt (II) Nitrate in seven of the wells. I then moved to the next row and placed two drops of Copper (II) Nitrate in the next row‚ into seven of the wells‚ and so on with the other three Nitrates. I then cut off the top of the Sodium Phosphate and added two drops to the Cobalt (II) Nitrate and observed the reaction and recorded the results. Then two drops into the Copper (II) Nitrate‚ observed
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since if the urine with a pH below this number is categorized as acidic and urine with a higher pH is alkaline. pH is playing a important role in the development of renal calculi. Acidic urine will lead to xanthine‚ cystine uric acid‚ and calcium oxalate stones. However alkaline urine can cause calcium carbonate‚ calcium phosphate‚ and magnesium phosphate stones. For protein‚ normally there will be no protein or only small amount of protein in the urine‚ Protein in the urine may be a sign of kidney
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Vitamins and Minerals General Concepts: * Divided into two major groups: fat soluble and water soluble * fat soluble: A‚ D‚ E‚ K * requirements vary with species‚ size‚ growth rate‚ environment (temperature‚ presence of toxins‚ etc.) and metabolic function (growth‚ stress response‚ disease resistance) * many species can utilize intestinal bacteria synthesis for meeting vitamin requirements Vitamin
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Unknown 2 Scheme “ Fair game” ions Cations: Na+‚ K+‚ NH4+ ‚ Ca2+‚ Mg(OH2)62+ ‚ Al(OH2)63+ Anions: SO42-‚ HSO4-‚ NO3-‚ OH-‚ Cl-‚ CO32-‚ HCO3- Insoluble Compounds: Ca(OH)2‚ CaSO4•2H2O‚ CaCO3‚ MgCO3‚ Mg(OH)2 I. Describe Sample a. Quick description of sample. Ex: Phase‚ color‚ odor‚ crystalline‚ amorphous‚ gel-like‚ powdery‚ etc. II. Flame Test a. Part 1 i. Orange Flame: Na+ is present. K+ ‚ NH4+ ‚ Ca2+‚ Mg(OH2)62 ‚ Al(OH2)63+ may also be present. ii. Purple Flame: K+ is present (no Na+
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