uses of bacteria. Throughout the investigation a series of experiments will be conducted to determine if metals such as nickel and aluminium have a resistance to E.coli K12 over a sequence of generations. To complete the investigation four Macconkey agar plates were inoculated with E.coli k12 and four paper discs of aluminium and nickel that were soaked in metal salts were placed into the plates to see the resistance that would occur over. Once resistance had occurred‚ the zone of inhibition was scraped
Free Bacteria Antibiotic resistance Escherichia coli
RESEARCH PAPER ON BIOLOGICAL ACTIVITY OF ACTINOMYCETES ................ ABSTRACT: The microorganisms are ubiquitous in nature. They are found in probably every environmental condition present on earth. Actinomycetes were originally considered to be an intermediate group between bacteria and fungi but now are recognized as prokaryotic organisms with high G+C (>55%) content in their DNA. Our project aim is to evaluate some biological activities of Actinomycetes like:
Premium Enzyme Petroleum Bacteria
Contributors to Bacteriology In an unassuming way‚. they moved agar from the kitchen to the lab‚ revolutionizing bacteriology WOLFGANG HESSE T RANSLATED BY D IETER H. M. GR~SCHEL Walther Hesse was a well-known community health physician in the Kingdom of Saxony‚ a student of Max von Pettenkofer‚ the father of hygiene‚ and of Robert Koch‚ the father of medical microbiology. His American wife‚ Fanny Angelina‚ introduced agar-agar to the new science of microbiology. The Hesse Family Walther
Premium Agar Microbiology Family
the glass tube test and the agar-water gel test. In the glass tube set-up‚ two cotton plugs soaked in two different substances (HCl and NH4OH) were inserted into the two ends of the glass tube. The substance with the lighter molecular weight value (NH 4OH‚ M = 35.0459 g/mole) diffused at a faster rate (dAve = 25.8cm)‚ resulting in the formation of a white ring around the glass closer to the side of the heavier substance (HCl‚ M = 36.4611 g/mole; dAve = 10.8 cm). The agar-water gel set up was composed
Premium Molecular diffusion Hydrochloric acid Ammonia
various petri dishes containing agar‚ E Coli and the slime mold Dg‚ and the pH level is changed‚ then the petri dishes containing pH 4 (potassium acid phthalate) and pH 5 (sodium and potassium phosphate) will grow fruiting bodies more rapidly than pH 7 (potassium phosphate) and pH 9 (potassium phosphate and sodium borate)‚ since slime molds have a tendency to move away from ammonia‚ they probably do not prefer basic solutions. METHOD Materials: 4 petri dishes with agar and E Coli Dg pH 4 – potassium
Premium PH Acid
Shakira Jarvis Microbiology Lab Assignment Laboratory Assignment Outline 1. Check in & The Microscope a. Review of proper lab etiquette. i. Review laboratory syllabus and b. Review of the Parts of a Microscope ii. Review of lab exercises about different types of Microscopes 2. Survey of Microorganisms c. Viewing‚ drawing‚ and describing several types of fungi‚ algae‚ and Bacteria iii. Chlamydomonas iv. Spirogyra
Premium Bacteria Microbiology Agar plate
in a color change of the medium from green to blue. Materials needed include simmons citrate agar slant tube‚ and a pure culture of bacteria. The starch hydrolysis test is used to determine the ability to hydrolyze starch. Bacteria use amylase‚ an extracellular enzyme to hydrolyze bonds linking the glucose subunits. Starch is detected by adding iodine to the medium. If the bacteria growing on the starch agar produce amylase‚ no color change will be seen around the bacterial growth because all of the
Premium Bacteria Microbiology Gram staining
Agricultura (cultura plantelor şi creşterea animalelor) este cea mai veche ramură a economiei mondiale. In unele ţări din Asia‚ Africa şi America de Sud este şi astăzi principala ramură economică şi sursă de subzistenţă. 1. Tipuri şi structuri teritoriale agricole Tipul de agricultură este rezultatul evoluţiei de lungă durată a unui ansamblu de factori sociali‚ tehnici‚ economici şi culturali‚ ce evoluează de la o regiune la alta în condiţii naturale determinate. Structura teritorial-agricolă
Premium
was place on a rack then the stain were apply. B. From agar cultures. 1. A drop of water was place in the center of the glass slide. 2. With sterilized inoculating loop to obtain a minute of bacterial culture from the agar cultures 3. It then mix with the drop of water and then proceeds as broth cultures. SIMPLE STAINING TECHNIQUES Material: 1. 24 hours broth cultures of a. E. coli b. Staph. aureus 2. 24 hours nutrient agar slants of a. Bacillus subtilis b. Pseudomonas aeruginosa
Premium Bacteria Microscope Staining
Chapter 1 INTRODUCTION Background of the Study Food is arguably the most important thing when it comes to a person’s life. Everyone eats‚ no matter what kind of diet they tend to have. Everyone just really eats food and that. The great thing about food‚ however‚ is that they tend to be quite unique to its location. A dish could be popular worldwide‚ but it can also be very local and specific to an area. This is mostly due to the fact that food largely reflects local culture. The ingredients
Premium Management Dim sum Jiaozi