Abstract: Bacteria consists of a large domain of prokaryotic microorganism in which can fight of antibiotics allowing the bacteria to become antibiotic resistant. In this lab report‚ we discover the most effective disinfectant that would work best in killing the harmful bacterial strain‚ Bacillus subtilis. KB testing or disc diffusion antibiotic sensitivity testing is measured through the diameter in millimeters to find how resistant the antibiotic to the bacteria. The hypothesis of Windex fell correctly
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Ph Lab Report Bryon Kim 123013 B(2) Biology Background information/Research PH paper (litmus paper) determines how acidic or how basic a substance is. The paper changes color accordingly to color code on the pH scale. The pH scale starts from 0 to 14. The lower the number the more acidic it is. Zero is the most acidic‚ and 14 is the most basic while 7 is the neutral number for example water. Examples of an acid is lemon juice or multi purpose cleaner. Examples of a basic substance is shampoo or liquid soap
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Introduction The purpose of this lab was to identify unknown bacteria cultures using various differential tests‚ and my unknown bacteria is #17. The identification of these unknown cultures was accomplished by separating and differentiating possible bacteria based on specific biochemical characteristics. Whether the tests performed identified specific enzymatic reactions or metabolic pathways‚ each was used in a way to help recognize those specifics and identify the unknown cultures. The differential
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when the enzyme and buffer in the assay are held constant were experimented. We analyzed the change in absorbencies over time for varying substrate concentrations. There were four experimental assays which contained 1% enzyme solution‚ substrate solution of 0%‚ 1%‚ 2%‚ and 3% concentrations‚ guaiacol‚ and pH 7 buffer. At 2% concentration there was a greater enzymatic activity and at 3% concentration enzymatic activity decreased. The results were supported of our hypothesis. INTRODUCTION Enzymes are proteins
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Transpiration Formal Lab Report By Jessica Tran Introduction When water is transported from the roots to the mesophyll cells in the leaves‚ it is evaporates out the stomates‚ called transpiration‚ to create a lower osmotic potential. Osmotic potential is the part of the water potential of a tissue that results from the presence of solute particles. Even though the stomates open to release water‚ it also brings in carbon dioxide to produce sugar and oxygen through a process of photosynthesis
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of juices is 2 to 3 L per day. Hydrochloric acid and enzymes are also produced by cells of the stomach. All these substances are mixed with the food and break it down. Crushed‚ it is transformed into liquid‚ the chyme. At this stage‚ the chyme is at the level of the pylorus. It is then propelled little by little into the small intestine by contraction of the stomach. Generally‚ the stomach will empty in about 4 hours after a
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Radial Immunodiffussion (RID) Christian Crespo 18 October 2013 Immunology Lab Report Purpose of the Experiment: The objective of this experiment is to quantitatively observe the foundational reaction in our Immune system; the Antigen-Antibody interactions. The Ouchterlony procedure is what will be used in this lab to detect nature of the antibody interaction. The orientations of the band will provide more information about the interaction of antibody and antigen
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How many will it hold Benchmarks Covered (Learning Objective) SC.8.N.1.1 Define a problem to plan and carry out scientific investigations. SC.8.P.8.2 Differentiate between weight and mass‚ recognizing that weight is the amount of gravitational pull on an object and is distinct from‚ though proportional to‚ mass. Research Question/Problem - Which type of pasta noodle would hold the most pennies if we were to tape them to two stools 16 cm apart‚ dropping pennies into a cup tied around the noodle?
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good model. The model superimposed very well to evolutionary related protein AXE2 with an RMSD (Root Mean Square Deviation) of 0.217 Å. In Fig. 5a‚ the predicted model‚ has been shown with overlaid catalytic triad residues and the loop involved in catalysis. The position of Ser- His- Asp (catalytic triad) was quite similar to the predicted residue position of 15‚ 192 and195 respectively‚ as described earlier in Fig 1b. Notably‚ In the Fig 5a‚ the orientation of the active side loop was significantly
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Instructor Biology 1111 4-5 Lab Topic 4: Microscopy Elodea Cells at ___X Elodea Cells at ___X Report Sheet—Lab Topic 4 1. Draw and label each of the organisms available. Cheek Cells at ___X Cheek Cells at ___X Name _______________________________ Date_____________ Instructor ___________________________ Section___________ _________________________ 4-6 Lab Topic 4: Microscopy 2. Fill in the following table: Compound Microscope Dissecting Microscope Types of Light Available Powers
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