applied on the given mixture of Bacillus cereus‚ Escherichia coli and Staphylococcus aureus and then examined microscopically. Results were recorded in Table 1. Gram Reactions Cell shapes Cell Ends and Arrangement Size Distinctive Characters Predicted Bacteria Bacteria 1 Gram positive (purple) Cocci Rounded‚ clusters‚ singly Small - Staphylococcus aureus Bacteria 2 Gram negative (pink) Rods (shorter than B. cereus) Rounded‚ regular‚ pair‚ clusters Medium - Escherichia coli Bacteria 3 Gram positive
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MEDICALLY IMPORTANT BACTERIA | GRAM-POSITIVE BACTERIA * Alpha and gamma hemolysis on blood agar * Bacillus cereus colonies on blood agar * Beta-hemolysis on blood agar (S.aureus) * Beta-hemolysis on blood agar * Beta-hemolytic colonies on blood agar * Clostridium perfringens Gram stain * Corynebacterium diphtheriae Gram stain * Corynebacterium pseudotuberculosis on blood agar * Enterococcus faecalis * Enterococcus faecalis on blood agar * Enterococcus faecalis Gram stain
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ISOLATION AND SCREENING EXTRACTED FROM GOTU KOLA (Centella asiatica) ROOTS EXTRACT Submitted by: ALIANA CLARENCE B. JAMERO IV – REG A Research Paper Presented to the Faculty of Gusa Regional Science High School Region X In Partial fulfilment of the requirements For Research 2 Submitted to: ERMA S. DAPIN Adviser March 2014 APPROVAL SHEET The research paper hereto attached‚ entitled; “ISOLATION AND SCREENING EXTRACTED FROM GOTU KOLA (Centella asiatica) ROOTS EXTRACT”
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coli). Bacillus subtilis is a gram-positive rod-shaped bacterium‚ typically found in vegetation and soil. (Entrez Genome Project). E. coli is gram-negative bacterium commonly found in the gut of warm-blooded organisms. (National Health Service) HYPOTHESIS If we
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Biology101 McDowall 10/29/2012 Escherichia Coli “The Bacterial Beast” E.coli or binomial name Escherichia coli was discovered by a German pediatrician named Theodore Escherich in 1885. Dr. Escherich originally named the bacteria‚ bacillus communis coli. After the demise of Dr. Escherich the intestinal bacteria was then named Escherichia coli after the late doctor in 1919. The bacteria Escherichia coli are classified as follows. Domain- Bacteria Kingdom- Eubacteria Phylum- Proteobacteria
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engineering to eliminate bacterial infection in orthopedic implants which generally leads to implant failure. Table 4 showed antibacterial zone of inhibition of CMZH I-III and CZH against gram-positive bacteria Bacillus cereus and Lysinibacillus fusiformis and gram-negative bacteria Escherichia coli XL1B. It was observed that the antibacterial inhibition zone increased from CMZH I to CMZH III against all three bacterial strain where OMMT content has been increased from 5 to 15 wt % respectively. The
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immediately surrounding the colonies after addition of iodine on PDA plate. Organism Result + or - Appearance/Observations Bacillus cereus Escherichia coli B. Gelatin Hydrolysis (gelatinase production) Note: whether the gelatin deep remains solid or has been liquefied Organism Result + or - Appearance/Observations Bacillus subtilis Escherichia coli C. Coagualse: identification of Staphylococcus aureus Note: whether the rabbit plasma has remained liquid
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scientific nomenclature (binomial nomenclature) Each organism has two names: genus and specific epithet Are italicized or underlined Everything is “Latinized” Genus is capitalized Species is lowercased May be descriptive or honor a scientist Escherichia coli Honors discoverer Theodor Escherich Describes bacteriums habitat- large intestine or colon Staphylococcus areus Describes the clustered (staphylo) spherical (cocci) cells Describes the gold-colored (areus) colonies Scientific Names
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antibiotics has been synthesized‚ which are in great demand. This present study has been done to determine the antibacterial activity of Cannabis sativa leaf extract to some selective pathogenic bacterial strains such as Staphylococcus aureus‚ Escherichia coli‚ Pseudomonas aeruginosa. Antibacterial activity if cannabis sativa was evaluated by well diffusion method. The highest zone
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________ in wine. | | endospore-producing bacteria | | | all bacteria | | | disease-causing bacteria | | | antibiotic-producing bacteria | | | spoilage bacteria | Question 5 | | 1 / 1 point | Robert Koch’s studies on Bacillus anthracis established a sequence of experimental steps to prove that microbes ________. | | can be altered to produce products such as human insulin | | | degrade toxic wastes | | | control insect pests | | | recycle elements such
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