Measuring Cylinder‚ Beakers‚ Spatula‚ Conical Flask‚ Measuring Scale‚ Funnel‚ Dilute HCL‚ Calcium Carbonate (Present in Tums)‚ Sodium Carbonate (Present in Andrews Salts)‚ Petri Dish‚ Rubber Stopper‚ Gas Syringe METHOD: 1. Wash all apparatus. 2. Measure and transfer 5g Calcium Carbonate to Petri Dish. 3. Measure and transfer 25cm3 of HCL to Beaker. 4. Place acid into conical flask and Calcium Carbonate and cover
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Five female C. maculatus and five male C. maculatus were taken from the Bean Beetle Cultures and added to three separate petri dishes. Next‚ the black-eyed beans for the experiment‚ Vigna unguiculata‚ which were obtained from Signature Kitchens of Better Living Brands‚ LLC‚ were counted and eventually added to the dishes. Some of the beans had already been treated with different
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Plant Tissue Culture 151 Chapter 9 Plant Tissue Culture Techniques Lorraine Mineo Department of Biology Lafayette College Easton‚ Pennsylvania 18042 Lorraine Buzas Mineo (B.S.‚ Muhlenberg College; M.A.‚ Duke University) is a lecturer in the Department of Biology‚ Lafayette College‚ and has taught botany since 1978 and supervised the General Biology Laboratories since 1970. Research interests in physiological and forest ecology have culminated in several publications. Other interests include
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COMPARISON BETWEEN PLACENTA AGAR AND NUTRIENT AGAR ON GROWTH OF Staphylococcus aureus AND Escherichia coli Chloe Dominique Acero Kristine Marie Gonzales Hannah Marie Hermosisima Patrisha joy Morales Joanna Keziah Ramos Group 4 BSMT3E Background of the Study Placenta is an organ characteristic of a true mammal during pregnancy‚ joining mother and offspring‚ providing endocrine secretion and selective exchange of soluble‚ but not particulate
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effects of antibiotics on the growth of bacteria. They cultured bacteria in four glass Petri dishes and then added different amounts of antibiotic to each dish. After the experiment is completed‚ what should be done with the Petri dishes? After an experiment in which students cultured live bacteria‚ they soaked their Petri dishes in bleach before washing and reusing them. What is the purpose of soaking the Petri dishes in bleach? What are the cell walls of Members of the Kingdom Plantae made
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over come attraction from the chemical for the absorbent layer and move that chemical in a given period of time. Materials Food Coloring (solute) Ethanol‚ Acetone‚ Tap Water‚ Distilled Water(solvents) Pencil Ruler Scissors Filter Paper Petri Dish Variables Independent: Type of chromatography solvent Dependent: Retention in paper chromatography Controlled: Type of Chromatography paper Size of spot Thickness of Chromatography Substance tested
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crystallizes as yellow hexagonal platelets. Source: http://www.britannica.com/EBchecked/topic/333615/lead-iodide Apparatus: • 1 measuring cylinder (50cm3) • 1 weighing scale • 1 conical flask • 1 filter paper • 1 funnel • 2 beakers • 1 petri dish • 1 oven Chemicals: • Solid potassium iodide (KI) • 0.1 M lead nitrate [Pb(NO3)2] Risk Assessment: 1. Wear safety glasses to prevent lead iodide entering your eye. 2. Wear rubber gloves while handling the lead iodide to avoid skin contact
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to find the molarity where the mass does not change. No net change in weight indicates that there has been no net gain or loss of water. This is a means of indirectly finding the osmolarity of the cells themselves. Apparatus 1 large potato Petri dish 7 x 250 ml beakers (disposable cups may be substituted) sucrose solutions: 0.1‚ 0.2‚ 0.3‚ 0.4‚ 0.5‚ 0.6 molar marker razor blade/scalpel forceps cork borer balance (2dp) distilled water paper towels ruler (30 cm) Method 1
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Abstract This study was undertaken to determine the relationship of different wavelengths of light and the rate of photosynthesis in spinach leafs. The rate of photosynthesis was measured every five min under light colors of white‚ green‚ red‚ blue and yellow under a light intensity of 2000 lux. The rate of photosynthesis was measured by the spinach disk method in which we replaced the air from the disks with sodium bicarbonate using a vacuum. Under photosynthesis‚ oxygen‚ a product of photosynthesis
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In 1914‚ during the Second World War‚ soldiers were dying like flies with massive numbers of dead at over 10 million. Automatic rifles and artillery fire were no respecters of person‚ nor was chemical warfare‚ no matter what side you were fighting on. If a bullet didn’t kill a soldier‚ it was almost a death sentence if he was wounded in battle‚ no matter how minor the wound. This death sentence was caused by wound infections‚ and the doctors in the field hospitals were working fervently to save lives
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