results of several tests. The first test was the Gram stain test which showed the microorganism was Gram positive and rod shaped. Using an Unknown Identification Flowchart‚ I proceeded to inoculate a Starch plate. In week 2‚ I analyzed the Starch plate and was able to determine that the results for Starch Hydrolysis were negative due to the dark color. Next‚ I inoculated Simmons Citrate Agar slants. By week 3 I was able to analyze the Citrate Agar‚ which tested negative for citrate utilization. With
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Blue coloration turned to brick red precipitate. Reducing sugar is present in the solution A. Iodine test: The coloration remained unchanged. Starch is absent in solution A. Solution B Benedict’s test: The blue coloration remained unchanged. Reducing sugar is absent in solution B. Iodine test: The coloration turn into dark blue coloration. Starch is present in solution B. Table 2: Tube Contents Temperature(°C) Benedict’s Test-Colour Observation After min 5th min (from tubes 1
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as waste. The whole process involves many different organs and sometimes takes several hours. There are four stages of digestion:- Mouth: ingestion (taking in of food or liquid into the body)‚ chewing and swallowing this is the starch of digestion. Stomach: mixing and protein digestion Small Intestines: carbohydrates and fat digestion abortion Large intestine: waste and excretion Reference: http://en.wikipedia.org/wiki/Digestive_system
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micro-organisms that digest cellulose and other polysaccharides from plant sources. Most animals lack the enzyme‚ that is necessary to digest cellulose from plants and therefore dependent on microorganisms. The temperature of the rumen is approx. 39 degrees‚ the pH is approx. 6.5 and is anaerobic conditions. The food is present in the rumen for 9 to 12 hours and during this period bacteria and protozoa hydrolyze cellulose to the disaccharide cellobiose and free glucose molecules. Glucose is fermented by bacteria
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protein chains from the correct amino acids. They work best when they are at optimum temperature this is why homeostasis is important to keep our body temperature at a constant 37c as the temperature increases‚ so does the rate of the chemical reaction. This is because heat energy causes more collisions‚ with more energy between the enzyme molecules and other molecules. However when the temperature of the reaction is above optimum temperature of the enzyme‚ the heat energy causes the active site (which
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enzymes play a big role in your stomach and intestines. Enzymes such as protease‚ lipase‚ and amylase can break up fat‚ oil and starches from our daily food. How Does It Work? Enzymes are proteins‚ which act with a given compound (the substrate) to produce a complex‚ which then forms the products of the reaction.(1) Enzymes are controlled by the industries by the temperature‚ the PH‚ the concentration and the enzymes inhibitors and effectors. Temperature: Different types
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qualitative data would be a simple pH test and stating if a solution is acidic or basic without stating the pH numerical value. On the other hand‚ quantitative data assigns a value to the answer. Quantitative data is the type of information that provides more detail. Number values and units matter when giving a quantitative analysis. For example‚ if a pH=8.44‚ the actual numerical value is considered quantitative data. 2. Referring to the experiments on the effect of pH on enzyme activity‚ respond
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test: Blue coloration turned to brick red precipitate. Reducing sugar is present in the solution A. Iodine test: The coloration remained unchanged. Starch is absent in solution A. Solution B Benedict’s test: The blue coloration remained unchanged. Reducing sugar is absent in solution B. Iodine test: The coloration turn into dark blue coloration. Starch is present in solution B. Table 2: Tube Contents Temperature(°C) Benedict’s Test-Colour Observation After min 5th min (from tubes
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blood and starch agar. OBJECTIVES: distinguish between different bacterial species based on colony morphology on agar plates To distinguish the growth characteristics of microorganisms in various differential‚ and selective media. Differentiate bacteria based on their ability to hydrolyze starch. Materials: Plates of EMB‚ Starch and blood agar. Stool sample. Inoculating loop. Bunsen burner. Soil sample. Cotton soap. Skin sample. Gram iodine. Results: Starch agar:
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sugars‚ starch‚ and cellulose. Protein‚ such as meat‚ eggs‚ and beans‚ consist of large molecules of protein that must be digested by enzymes before they can be used to build and repair body tissues. An enzyme in the juice of the stomach starts the digestion. Further digestion
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