experiment allowed the students to perform the plate count technique by serial dilution and two common methods‚ spread plate and pour plate to determine the colony forming unit (CFU) of yeasts A ten-fold dilution is used in this experiment‚ the sample is diluted until it reached the 10-9 dilution. Plating for spread plate started from 10-5‚ 10-6‚ 10-7 and 10-8 dilution while for pour plate‚ it started from 10-6‚ 10-7‚ 10-8 and 10-9 dilution. Having incubated inverted at room temperature (25oC) for 2 days
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DCP & CE Title The effect of the different dilutions of yeast cell suspension on the number of yeast cells per cm3 that counted using haemocytometer under microscope. Aim To investigate the effect of the different dilutions of yeast cell suspension on the number of yeast cells per cm3 that counted using haemocytometer under microscope. Research Question Do the different dilutions of yeast cell suspension affect the number of yeast cells per cm3 that counted using haemocytometer under
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Pre-Lab 1 Assignment Quantitative Analysis of Biomolecules Biochemical analysis involves the characterization of biomolecules within a sample using appropriate laboratory techniques. There are two principal approaches: 1. Qualitative analysis – where a sample is analyzed to determine whether a biomolecule is present or absent. As an example‚ a blood sample might be analyzed for a specific antibody or a bacterial cell might be probed for a nucleic acid sequence. 2. Quantitative analysis
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etc.) Remember to cite information and put responses in your own words to avoid plagiarism (and loss of credit on the assignment). 1. Refer to step 2 in the protocol for lab 6. Calculate the concentration of the sample in tubes 2-5 for the serial dilutions in the chart below. You may wish to refer to http://www.wellesley.edu/Biology/Concepts/Html/standardcurve.html Tube number Water (ml) Blue Solution (ml) Total Final volume (mL) Concentration (mg/ml) 1 0 5.0 2.5 1 mg/ml 2 2.5
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available i. Spread plate method. ii. Most probable number (MPN) method. (I) SPREAD PLATE METHOD (LAWN CULTURE) MATERIALS: Dilution series prepared in (A) Sterile 1ml pipette 6 nutrient agar (NA) plates 1 glass hockey stick 1 beaker of alcohol PROCEDURE All steps should be done using aseptic technique The culture labeled 10-8 was gently mixed. 0.1ml of this dilution was aseptically transferred onto the center of a NA plate. Bend end of the glass spreader was dipped in alcohol‚ then it was
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Virtual Lab – Biotechnology – Dependent and Independent Variables |Corn Variety |Level of ECB |Growing Pot 1 Yield |Growing Pot 2 Yield |Growing Pot 3 Yield |Average Yield | | |Infestation | | | | | |Golden crop |None |184.8 |183.2 |190.0 |186.0 | |Bt 456 |Low
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-Homeopathy is an affective form of treatment for many conditions including illnesses‚ and disease. - This medicine is made from substances such as plants‚ animals‚ or minerals. -Homeopathic remedies allow the body to heal itself without any harmful affects that might come from the use of conventional drugs -The history of homeopathy dates as far back as Hippocrates in the 5th century. It was also used by Egyptians. -Most people take medicine in strong doses so the drug will produce
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Vocabulary: Lesson pH and dilutions Science Starter: Determine the pH of .0103M H3PO4 solution in water. Remember to look at the H+ count. Box 1 In a dilution‚ the number of solute particles does not change‚ just the concentration with respect to the volume. This relationship is _____________________ proportional. Initially‚ there is 275mL 0.125M stock solution of a substance. -Determine the amount of moles of solute present. -What is the concentration after a dilution when the final volume is
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CONCENTRATION AND DILUTION Physiology 1‚ Las Positas College Name: In science‚ concentration is a measure of the number of particles (solutes) in a given volume. If one room has 100 people in it‚ and a room of equal size has 50 people‚ one can say that the concentration of people in one room is twice that of the other. Quite simple‚ isn’t it? On a molecular level‚ consider whether you put one lump or two of sugar‚ or no sugar at all‚ in your coffee. If you use two lumps‚ you prefer twice
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A merger is a combination of two companies where one corporation is completely absorbed by another corporation. The less important company loses its identity and becomes part of the more important corporation‚ which retains its identity. It may involve absorption or consolidation. Merger is also defined as amalgamation. Merger is the fusion of two or more existing companies. All assets‚ liabilities and the stock of one company stand transferred to Transferee Company in consideration of payment in
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