distinguish the species of bacteria into two groups Gram-positive and Gram-negative based on the physicochemical properties of the cells. First‚ a smear was prepared by use a sterile transfer loop that been flamed to removes some bacteria from slant agar and placed on the slide; mixed with one drop of water and let air dried. After dried‚ heat fixation the slide by passed the slide over a flame quickly 2-3 times to stick bacteria to the slide. Next‚ the smear was sequence covered with crystal violet
Premium Gram staining Staining Bacteria
combustie sau explozie. Tehnica fabricării materialelor inflamabile (şi a artificiilor) poartă numele de pirotehnie. Petardele reprezintă un anumit tip de artificii‚ care produc prin explozie un zgomot puternic. Ele erau utilizate în mod obişnuit mai multe în acelaşi timp‚ sau imediat una după alta ’’ în serie‚ la celebrarea Anului Nou Chinezesc‚ la nunţi‚ înmormântări‚ diverse inaugurări‚ etc. Principalele ingrediente ale artificiilor au rămas aceleaşi de 1.000 ani: 75% nitrat de potasiu‚ 15%
Premium
of different concentration of protease. In this experiment‚ a plate of milk agar is needed for comparing the result of each sample. Circular wells were dug on the milk agar plates by the use of cork borer‚ and extracts could be put into the wells by dropper. One must note that milk-agar is white in color due to casein. If protease is present‚ casein will be digested by the enzyme giving a clear zone in the milk-agar plate. The size of the clear zone can help us to determine whether fruits differ
Premium Petri dish Fruit Agar plate
Question: What antibiotics work best in preventing E. coli k12 from growing; amoxicillin‚ ampicillin‚ or ciprofloxacin? Hypothesis: If ciprofloxacin‚ an antibiotic‚ is added to petri dishes covered in live bacteria and left to sit for four to six days in an incubator at 37 degrees Celsius‚ then the petri dishes containing ciprofloxacin will have the largest zone of inhibition out of all of the other antibiotics tested because research shows that ciprofloxacin in one of the strongest antibiotic currently
Premium Bacteria Antibiotic resistance Escherichia coli
urease. Casein hydrolysis tests for organisms capable of hydrolyzing casein via the casease. Materials and Methods Bile Esculin Hydrolysis The organisms Lactococcus lactis and Enterococcus faecalis were spot-inoculated on a bile esculin agar plate. The bile esculin agar plate is a both selective and differential medium contains primarily esculin. The plate was then inverted and incubated at 37 oC for 24 hours. Bile salts‚ the selective agent‚ can allow only Enterococcus and group d streptococcus to hydrolyse
Premium Starch Enzyme Bacteria
the Gram stain‚ and light microscope identify at least 2 Prokaryotes (bacteria) found in the water samples that are isolated on the MacConkey agar plates and the nutrient agar plate. Using the Identification Lab manual‚ identify at least 2 Eukaryotes (fungus) found in the soil sample that are isolated on the Potato dextrose agar plate and the nutrient agar plate. 3. In an agricultural context‚ research bacteria and fungus and their importance to Earth. 4. A high quality‚ 3+ resource
Premium Gram staining Bacteria Fungus
CHAPTER-2 PROFILE OF THE ORGANIZATION 2.1 About Bharthi Airtel: Bharti Airtel Limited is an Indian multinational telecommunications Services Company headquartered in New Delhi‚ India. It operates in 20 countries across South Asia‚ Africa‚ and the Channel Islands. Airtel provides GSM‚ 3G and 4G LTE mobile services‚ fixed line broadband and voice services depending upon the country of operation. It is the largest cellular service provider in India‚ with 225 million subscribers as of August 2013. Airtel
Premium Mobile phone Mobile phone Bharti Airtel
early days of microbiology in the 19th century‚ culture on agar plates has been a central technique for the study of bacteria. This practical is designed to introduce students to the basic techniques required to manipulate bacteria. Students will gain experience with the streak plate procedure‚ used to isolate pure colonies of bacteria‚ and viable plate count methods. The latter involves serial dilution and spread plating of bacteria on agar plates. Materials required per pair • One 10 ml liquid culture
Premium Escherichia coli Agar plate
After shave Nivea Coordonator: Lect. Dr. Anastasiei Bogdan Studenti: Avram Maricela Georgiana Stanciu Elena Magdalena Grupa 1421 CUPRINS CUPRINS.................................................................................................................................................................2 REZUMAT INTRODUCTIV.................................................................................................................................3 CAP. 1 DESCRIEREA PIETEI........
Premium
Title Antimicrobial properties in different type of plants. Introduction A substance that kills or prevents the growth of microorganisms for example bacteria‚ fungi or protozoans is called an antimicrobial. This substance has 2 major roles which are to either kill microbes (microbiocidal) or prevent the growth of microbes (microbiostatic). Disinfectants are antimicrobial substances used on non-living objects outside the body. This substance included antibiotics‚ antifungals‚ antiprotozoals and
Premium Bacteria Agar Antimicrobial