and why disease-causing bacteria grow and spread‚ so that you are able to prevent food-borne diseases. Kinds of bacteria 1. Beneficial bacteria These are helpful to us. They can enhance flavor of butter‚ yoghurt‚ and cheese. 2. Undesirable bacteria These are bacteria that are responsible for food spoilage. 3. Disease-causing bacteria or pathogens These are bacteria that are most of the food-borne illnesses. The only way to protect food against pathogenic bacteria is by proper hygiene and
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Question: What genre of music affects the growth of bacteria the most? Problem: Effects of music on Bacterial Growth Hypothesis: If three genres of music were played to the same samples of bacteria‚ then the sample with pop music playing to it will have the most growth because pop music has a more positive and upbeat rhythm to it causing the bacteria to grow more. Variables: Control: The petri dish of bacteria without music and the samples of bacteria. Independent Variable: The type of music played to each sample
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to stimuli‚ and plasma membranes. One significant difference is that prokaryotes are without a cell nucleus and eukaryotes are cells with a membrane bound nucleus Prokaryotic falls in two taxa characteristic of organism: domain archaea and domain bacteria; however prokaryotic itself is not a taxon. Prokaryotes does not have a membrane surrounding its genetic material (DNA) they make proteins simultaneously to read their genetic code. Eukaryotes have a membrane called a nuclear envelope surrounding
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Escherichia coli Abstract Antimicrobial effects of cilantro against the gram positive bacteria S. epidermis and the gram negative bacteria E. coli were looked at. We predicted that cilantro would act as an antibiotic against S. epidermis but not to E. coli because S. epidermis does not contain an outer membrane whereas E coli. does. We predicted that the semi-permeable outer membrane of E. coli would protect the bacteria from any antimicrobial properties of cilantro. A drop of cilantro juice and water
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slow down the growth of bacteria. The Greek word anti means "against"‚ and the Greek word bios means "life" (bacteria are life forms). Antibiotics are used to treat infections caused by bacteria. Bacteria are microscopic organisms‚ some of which may cause illness. The word bacteria is the plural of bacterium. How do antibiotics work? Although there are a number of different types of antibiotic they all work in one of two ways: • A bactericidal antibiotic kills the bacteria. Penicillin is a bactericidal
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overused by doctors‚ both in outpatient and inpatient settings‚ and self-medication is common‚ especially in developing countries.” (Vento‚ 2010) Studies have shown that bacteria and viruses are becoming more and more drug and antibiotic resistant. The widespread use of antibiotics has consequently caused a widespread evolution of bacteria and viruses. As a result‚ new antibiotics are required to fight the now stronger and more dangerous versions of the same illnesses that‚ at one point‚ could have been
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1. Title: The Process of Determining the Unknown Bacteria #9 Rachel Judecki July 5‚ 2011 2. Introduction: Each student was given unknown bacteria and was instructed to perform a variety of experimental tests that would help to identify their bacteria. During the process of identification‚ the unknown bacteria was added to many different testing medias using aseptic technique. They are as follows: lactose fermentation on eosin methylene blue (EMB)‚ TSI (Triple Sugar Iron agar)‚ Phenol
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inform the audience about the bacteria Methicillin-Resistant Staphylococcus Aureus. Thesis Statement: MRSA is an infection caused by a strain of Staphylococcus that has become resistant to antibiotics commonly used to treat staph infections. Preview Statement: Many of you have heard of MRSA‚ today im going to tell you exactly what type of bacteria it is and how to minimize your exposure to it. Introduction: Attention Getting Device: Did you know that some bacteria can adapt to the antibiotics
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Clostridium tetani is a bacteria which can be found in soil and faeces‚ and causes the disease Tetanus. [Human Illnesses]. Clostridium tetani bacteria reproduce by binary fission because they are a bacteria. [St Margaret’s College]. In binary fission‚ bacteria reproduce by splitting themselves in half on a regular basis. [St Margaret’s College]. In ideal conditions‚ the Clostridium tetani bacteria may reproduce by binary fission every 20 minutes. [St Margaret’s College]. To live and reproduce by
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BASIC FOOD MICROBIOLOGY 1. Why do we need to identify bacteria in our food? 2. What is microbiology? 3. What is microorganism? Give examples. 4. Bacteria exist in two states. What are they? 5. What are the differences between spore and vegetative cell? 6. Bacteria vary in shape. Name the shape of bacteria that you learn. 7. What are the effects on food caused by spoilage bacteria and pathogenic bacteria? 8. What are the differences between eukaryote and prokaryotes
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