Soil Microbe Lab Antibiotics are chemicals produced by substances that kill or inhibit the growth of bacterial cells (Hurney et al 2013). These microbes‚ such as bacteria found in the soil‚ may seem like they would be harmful to the human body because they attack cells‚ however they are very efficient at only attacking the bacterial cells. Actinomycetes are one of the more common groups of these soil microbes known to produce antibiotics. Antibiotics work because they target specific aspects
Free Bacteria
1) What are the organisms/entities of study in the field of microbiology? 2) Who was the first human to publish extensive descriptions of microorganisms? 3) How did Louis Pasteur dismantle the theory of spontaneous generation in bacteria? 4) Who established microorganisms as the causative agent of infectious disease? How did he do this? What was the result of this body of work? 5) What are some of the advancements that were made possible once microorganisms were identified
Premium Bacteria
the bacteria are unable to convert squalane into squalene for use in the hopanoid biosynthesis pathway. Another possibility is that the bacteria are using other materials than squalane as a preferred substrate in this pathway‚ as they would require less energy to convert into the necessary compounds. Despite the lack of temperature-dependent effects‚ the consistent significant increase in growth in samples treated with squalane indicates that this compound provides some benefit to the bacteria. In
Premium Bacteria Epistemology Fungus
They are also called bacteria group ● They have cell wall that are made of peptidoglycan ● They have varied shapes ● Basic Shapes of Bacteria ● 1.) Cocci ● They are differently arranged ● They can form pairs (diplococcus)‚ chains (streptococcus)‚ or clusters (staphylococcus) ● They are spherical in shape 2.) Bacilli ● They can also occur in chains (streptobacillus) ● They are spherical in shape 3.) Spirilla ● They are spiral in shape Bioremediation ● “Oil-eating bacteria” ● Scientists at
Premium Bacteria
“spreading” the bacteria on a nutrient growth media in a specific manner as demonstrated in the lab tonight. In this lab we will be learning two methods to accomplish this task‚ the quadrant streak and the T streak. 1. Quadrant streak 2. T streak [pic] Lab exercise: Following the demonstration of both of these isolation techniques‚ it is your job to see how well you can repeat the procedure‚ and get isolated colonies of bacteria. A colony of bacteria is nothing more
Free Bacteria Staining Gram staining
research involved the occurrence of genetic transformation in bacteria (E. Coli). More specifically‚ a previously prepared pGLO plasmid--which consisted of the gene to be cloned--was used to transform non-pathogenic bacteria. The pGLO plasmid contained a gene for the Green Fluorescent Protein (GFP) from a bioluminescent jellyfish and a gene for resistance to ampicillin‚ an antibiotic. Essentially‚ we wanted to determine the conditions of the bacteria that would glow. Our hypothesis was that the transformed
Premium Bacteria Plasmid DNA
Mrs. Hafell 5th Period Biology | 2008-2009 | | Abstract How Food Preservatives affect the growth of Microorganisms? Aya Zbedah Ballard High School The purpose of this project is to see which preservative will either slow down the growth of bacteria or speed up the growth using the three most common preservatives: sugar‚ salt and‚ vinegar. Humans usually have a problem keeping their food safe and clean at the same time to prevent from getting sick. But what they don’t know is that the way they
Premium Foodborne illness Bacteria Escherichia coli
cell‚ which would otherwise be unseen. Further‚ in order to use the oil immersion objective of the microscope and thereby obtain the greatest degree of magnification‚ it is convenient to use stained preparations rather than wet mounts.1 Although bacteria do not appear greatly different from their
Premium Staining Bacteria Gram staining
What are bacteria? Bacteria are tiny little organisms that are everywhere around us. We can’t see them without a microscope because they are so small‚ but they are in the air‚ on our skin‚ in our bodies‚ in the ground‚ and all throughout nature. Bacteria are single-celled microorganisms. Their cell structure is unique in that they don’t have a nucleus and most bacteria have cell walls similar to plant cells. They come in all sorts of shapes including rods‚ spirals‚ and spheres. Some bacteria
Premium Bacteria
are capable of inhibiting or killing the bacteria. Antibiotics have enabled the effective treatment of infections including life threatening diseases ranging from respiratory diseases to sexually transmitted diseases (Rang et al.‚2007). An antibiotic acts by either limiting or stopping the growth of bacteria. It accomplishes this by probably interfering with the cell wall of the bacteria while having minimal effect on the normal body cells. Classifying bacteria into classes helps in identifying the
Premium Bacteria Penicillin