Your answer: The precipitin line occurs when the antigen and antibody are in optimal proportions and cross-linking occurs forming an insoluble precipitate. 3. Did you think human serum albumin and bovine serum albumin would have epitopes in common? How well did the results compare with your prediction? Your answer: yes;results showed they have partial identity Activity 3: Indirect Enzyme-Linked Immunosorbent Assay (ELISA) Lab Report 1.
Methyl Red turns red for a PH that is lower than 4.4 and it turns orange for a Ph between 4.4 and 6.0. Methyl Red will turn yellow with a Ph of 6.0 or above. Red means that the bacteria produces stable acid end products, yellow color means no acid end products, and orange is inconclusive. ("Lab manual," nd, p. 140) the Voges-Proskauer test determines the
The pH optimum? How would you classify the phosphatase activity found in your extract? The temperature optimum was 55 degrees Celsius. The pH optimum was 5. The phosphate activity found in our extract would be acidic because the pH is low.
Test for Triiodide ion Triiodide is present if your tincture is a shade of orange or red-brown. The solution became an orange-red color which indicates that there is a good amount of triiodide ion present. Standards Test Positive Positive (contains Iodine) Positive Positive (contains Iodide and Chloride) Positive Positive (contains Triiodide) Focus Questions 1. How can I make a Pharmaceutical Product from Seaweed? First of all, a pharmaceutical product can be made from seaweed by heating seaweed in water.
Do background research – Utilizing at least one scholarly source, describe how the dissolved oxygen content in a body of water can effect fish populations. Answer = Oxygen depletion refers to low levels of DO and may result in fish mortality. A concentration of 5 mg/L DO is recommended for optimum fish health. Sensitivity to low levels of dissolved oxygen is species specific, however, most species of fish are distressed when DO falls to 2-4 mg/L. Mortality usually occurs at concentrations less than 2 mg/L.
This product, dibromocholesterol, was washed and debrominated by an elimination reaction using zinc dust. Percent yield and recovery evaluated the efficiency of this synthesis. Melting point and thin layer chromatography (TLC) analysis assessed the purity of commercial cholesterol, dibromocholesterol, and synthesized cholesterol by physical analysis. Chemical tests evaluated the purity of these samples by assessing the presence of specific functional groups. Silver nitrate tested for 2o and 3o alkyl halides expected in dibromocholesterol and sulfuric acid tested for alkenes expected in cholesterol.
The bottles are toxin-free and carbon neutral, compared to popular plastic bottles containing petroleum. They are also reusable, recyclable and compostable in 80 days. The companies say that for every 72 plant-based bottles produced, they save one gallon of oil. Water is sourced within 500 miles of plants and the bottles also use 65 percent less energy and fuel to
Alpha hemolysis 3. Streptococcus pneumoniae are Gram-positive, lancet-shaped cocci (elongated cocci with a ... sensitive to bacitracin than other beta hemolytic streptococci. 4. the swelling of the capsule surrounding a microorganism after reaction with an antibody; the basis of certain tests for identifying microorganisms; "pneumococcus quellung" 5. capsules provide protection from viruses. they can be slippery to defend themselves from being eaten. Protects the bacteria from phagocytosis allowing the bacteria to stay in the body 6. pure culture 7.
ABSTRACT Isopropyltoluene isomers were synthesized through the friedel-crafts alkylation of toluene with 2-chloropropane in the presence of aluminum chloride as a catalyst. Through extraction of the distillate with water and 5% NaHCO3, followed by a fractional vacuum distillation, the desired aromatic organic compound was isolated. Infrared Spectroscopy and Gas Chromatography were used to analyze the composition, purity and to confirm the identity of the prepared product. The sample weighed approximately 2.66g, which reflected a low yield at 47%. However, from the GC the area % (also known as percent purity) was 91.8%, which indicates that a very pure product was obtained.
3.) Not storing or handling, food correctly could cause bacteria to grow which could cause food to turn mouldy, Also not cooking food correctly could cause bacteria and infections like E-coli or salmonella this could cause illness to people if consumed. Potential Accidents 1.) A patient spilling a hot drink onto their selves could cause an accidental injury such as scalding or burning, this could cause the patient a lot of pain and discomfort and this would then need treatment. 2.)