of bacteria when placed in liquid nutrient broth culture‚ the number of species present had increased in growth. .(1) (ii) Experiment 2 illustrated the growth of bacteria when placed on different surfaces of solid agar plates which included: nutrient agar‚ CLED agar and MacConkey agar; the number of species present also had increased in growth. (1) 2(A). Experiment 1: Choose 2 words that describe the appearance of the pre –incubation broth: (i) Straw yellow
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Hypothesis: The hypothesis for this particular practical experiment is that‚ as the pH decreases or increases from neutral pH of approximately 7‚ the amount of microbial growth on the agar solution will decrease Materials: Agar Solution Preparation: *hand sanitizer/ hand wash soap *small container *1g of agar powder *0.25g of beef extract stock *60mL of heated water *electronic balance *small spoons (2x) *teaspoons (2x) *0.2M Acetic Acid Solution (pH of 3) *0.2M Sodium Hydroxide Solution
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organisms can easily be seen using differing types of agar‚ which creates an ideal environment for the organisms to form colonies‚ which are groups of hundreds of organisms that can be seen with the naked eye. In order to see individual microorganisms‚ it is necessary to use the magnification of a high-powered microscope. These techniques of microbiology are used in the following five experiments. The first experiment used Trypticase Soy Nutrient Agar (TSA)‚ which can grow a wide variety of organisms
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for medicines and cure. Identification of bacteria is a multistep process because while some preliminary guesses can be made from the morphology of microbes on various differential agars‚ various other tests need to be done to differentiate and confirm their identity. RESULTS Bacteriology – When grown on MacConkey agar‚ A had abundant growth of pink punctiform colonies that are circular and moist. Microbes A are gram-negative cocci. B had moderate growth of yellow punctiform colonies that are circular
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David Kennedy Bio 210 Lab Report 1 10/11/13 Microbial Growth Background Information: This lab was conducted in order to understand basic differences among differential and selective media‚ while recognizing how each media is used to isolate and identify microorganisms (Wistreich‚ 2003). The first microorganism analyzed was Staphylococcus epidermidis. This organism is gram-positive‚ single celled‚ arranged in grape-like clusters‚ and cocci in shape (Bukhari‚ 2004). S. epidermidis is approximately
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groups then placed in agar plates simulating different environments: the bacteria lacking the pGLO plasmid was subjected to an environment solely contaiing nutrients and another containing nutrients and ampicillin; the bacteria containing pGLO was subjected to an environment containing solely nutrients and one containing nutrients‚ ampicillin‚ and the sugar arabinose. After being allowed to grow in their respective environments‚ the following agar plates grew E. Coli colonies: agar containing nutrients
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Introduction: Microbes‚ also called microorganisms‚ are minutes living things that individually are usually too small to be seen with the unaided eye. The group includes bacteria‚ fungi (yeast and molds)‚ protozoa and microscopic algae. It also includes viruses‚ those noncellular entities sometimes regarded as straddling the border between life and nonlife. People tend to related these microbes only with major disease such as AIDS‚ uncomfortable infections‚ or such common inconveniences as spoiled
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information technology (IT). In the introduction‚ Mohan states plainly that competitive advantages in the India IT industry are developed in a unique way. They focus on skills‚ technology‚ management knowledge and quality and scale of production (Pradhan 2005; Thite and Dasgupta 2011)‚ especially from service instead of technology revolutions and manufacturing. It is in a range with low cost and average technology quality. With a strong and integrated IT development in India‚ Mohan has chosen
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Course: BIO-205 BD2 Microbiology Instructor: Dirk VandePol Date: 6/21/2013 Streak Plate Isolation for Obtaining Pure Culture 1. When an agar plate is inoculated‚ why is the loop sterilized after the initial inoculation in put on? Ans: We use agar plate to inoculate microbes by zipping the loop on the agar several times. We streak on the agar plate four time‚ propose is to isolate the unknown bacteria. Therefore‚ the first time to streak on the plate‚ there are million of bacteria on the
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