When one thinks of bacteria, what comes to mind? Bacteria are single celled organisms whose main objective in life is to gather nutrient and reproduce asexually. They just grow and divide. Humans have very interesting interactions with bacteria. In our bodies we have one trillion cells that make us who we are. Outside and inside our bodies, we have 10 trillion bacterial cells that help us (dietary functions like making vitamins, creating a barrier against foreign/bad bacteria, helping our immune
Introduction There were three bacteria that were studied during this experiment. Staphylococcus is a type of bacteria that is often found on the body of human beings and animals. It is found on the skin and hair as well as in the noses and throats. Staphylococcus can cause food poisoning when it is exposed to food and contaminated because the food is not properly refrigerated. (Food Safety) These bacteria are Gram-positive with a spherical shape that often group into clusters, much like grapes
Describe the structure and life processes of bacteria. Bacterial cells, like plant cells, are surrounded by a cell wall. However, bacterial cell walls are made up of polysaccharide chains linked to amino acids, while plant cell walls are made up of cellulose, which contains no amino acids. Many bacteria secrete a slimy capsule around the outside of the cell wall. The capsule provides additional protection for the cell. Many of the bacteria that cause diseases in animals are surrounded by a capsule
Hats off to bacteria! This article summarizes that bacteria are good for our body and help us function a lot better. Bacteria live in our guts, in our mouths, and on our skin. Overuse of antibiotics has disturbed the bacterial ecosystem, possibly so much that it is irreversible. In 1999 Lawrence Brandt a professor of medicine and surgery at the Albert Einstein College of medicine had success when trying to help a patient combat diarrhea induced by clostridium difficile. A patient developed diarrhea
Bacteria are unicellular organisms called prokaryotes. Viruses are pieces of biomolecules that cannot reproduce independently. Both groups may be pathogens, or may be beneficial- sometimes, the same species or variety may be both, depending on circumstances (Starr, C., and Taggart, R., 2004.) Throughout history, pathogens and more helpful species have played vital roles in the development of humanity as a species and of the human social arrangement. Prokaryotes are divided into eubacteria and archaebacteria
Introduction Bacteria are becoming a common problem around the world. It is also a great advantage. Bacteria are in our food, in side humans and everywhere else. Not all bacteria are bad. Bacteria are microorganisms. They can only be seen through a microscope. Taken as a group, bacteria are the second most common cause of meningitis. Bacterial meningitis tends to be more serious than viral meningitis, and may even cause death. However, unlike viruses, bacteria can be killed by medicines such as antibiotics
Isolation of bacteria includes several techniques by which different bacterial colonies from a mixed culture can be separated. This isolation is important as it helps in studying the particular organism with its distinguished traits. Bacteria are in habit of living in an association with other organism/bacteria as this association will help in the better survival of an organism. These microbial populations will cooperate together and achieve better nutrients for each other because the waste of one
Bacteria are small microorganisms that are found in all environments, they are the building blocks of all life. Bacteria are ubiquitous, they are present everywhere. Bacteria have been present on earth for approximately 3.5 billion years (1, p.1). Bacteria serve a variety of different functions that are ultimately vital to life but can also threaten human life. Bacteria may be small, but our life is dependent upon their activity and growth (1, p.1). Since bacteria are so small and our life is dependent
The article I reviewed was, "Gut Bacteria" by Megan D. Baumler PhD, RD,CD. Though there are many soucres that went into this article, Dr. Baulmer gives great insight not only on what gut bacteria is, but also how it effects our bodies and everyday life. By going into detail about how it effects everyone differently , it allows us to think more about how certain things effect us, rather then the general population. She states that the reason for this is although nutrition facts of a certain food might
Introduction: Bacteria play a large role in our health, the environment, and most aspects of life. They can be used in beneficial ways, such as decomposing wastes, enhancing fertilizer for crops, and breaking down of substances that our bodies cannot. However, many bacteria can also be very harmful by causing disease. Understanding how to identify bacteria has numerous applications and is incredibly important for anyone planning to enter the medical field or begin a career in research. Having the
"Photorhabdus and Xenorhabdus bacteria colonize the intestines of the infective soil-dwelling stage of entomophagous nematodes, Heterorhabditis and Steinernema, respectively. These nematodes infect susceptible insect larvae and release the bacteria into the insect blood. The bacteria kill the insect larvae and convert the cadaver into a food source suitable for nematode growth and development. After several rounds of reproduction the nematodes are recolonized by the bacteria before emerging from the insect
a. What were your results? Name the bacteria and appearance after staining. The morphology was viewed under microscope 1000x magnification using oil immersion. The microorganism has rod shape and purple colouring at the end of the Gram stain procedure. This implies that the bacteria had only one cell layer, which absorbed the crystal violet stain. Therefore, the microorganism is gram positive, and based on the morphology, the microorganism is Bacillus cereus (Brooks et al. 2013).b. Describe two
There are many reasons why you should know the differences and similarities between viruses, bacteria, and prions. With this knowledge, you can determine how to make yourself feel better if you are sick, or how to prevent getting sick in the first place. This being said, there are many similarities and differences between these three. Prions are pathogens, and cause infections, like viruses. Prions cause many neurodegenerative diseases, but are made up of harmless proteins found in mammals and birds
shape of the microorganism and the number of peptidoglycan layers it has. The shape can be and type of cell can be used to determine which genera the unknown bacteria could be classified under. Differential media was used to “distinguish different species of bacteria” (Madigan, Martinko, Stahl, Clark, 2012). While all species of the bacteria are able to survive on the medium, there are visible differences. Selective media was used to promote the growth of specific bacterial species by inhibiting others
contaminated with bacteria (or their toxins) or other pathogens such as parasites or viruses. The illnesses range from upset stomach to more serious symptoms, including diarrhea, fever, vomiting, abdominal cramps, and dehydration. Although most foodborne infections are undiagnosed and unreported, the Centers for Disease Control and Prevention estimates that every year about 76 million people in the United States become ill from pathogens in food. Of these, about 5,000 die. Causes Harmful bacteria are the
meant to target bacteria. Antibiotics are a type of medicine that is prone to kill microorganisms, or bacteria. By examining the PBS documentary Hunting the Nightmare Bacteria and the article “U.S. government taps GlaxoSmithKline for New Antibiotics” by Ben Hirschler as well as a few other articles can help depict the problem that is of doctors prescribing antibiotics wrongly or excessively, which can led to becoming harmful to the body. In the documentary, Hunting the Nightmare Bacteria, reporter David
Antibiotic Resistant Bacteria “Antibiotics" is the name given to the group of chemicals, particularly in medicine, that stop or inhibit the growth of, microorganisms such as fungi, bacteria, and parasites, or that kill the microorganism. They are, however, completely ineffective against viruses. There are two kinds of antibiotics, namely; bactericides, which interfere with the cell wall or contents of the bacteria, thereby killing it, and bacteriostatics, which prevent the bacteria from reproducing
of bacteria known, many of which are harmful or pathogenic (i.e. can cause disease) and some of which are beneficial and can have many uses, for example, the bacterial species Lactobacillus is used in the production of cheese and yoghurt. The bacteria Bifidobacterium adolescentis is used for yoghurt making and Brevibacterium aurantiacum is used for cheese making. Also yeast is used in the production of beers and alcohols like wine and it also plays a role in bread rising. As well as bacteria being
INTRODUCTION: Bacteria play a very decisive role of silently getting the nature purge of the dead matter through the disintegration of dead organic matter by the microbes. They use them as a foundation of nutrients, and in turn help in recycling the organic compounds trapped in the dead matter. Through this process, other organisms also get profited, who can use the simpler forms of organic compounds/nutrients released from the dead matter by various bacteria. Figure 1: Decomposition
Unknown Bacteria report: Staphylococcus Aureus Staphylococcus aureus is the most known bacteria since the 1800s. It is derived from the commonly known genus staphylococci, which has over 20 different known species. Staphylococcus aureus species is the most dangerous of all the strains of staphylococcal bacteria. Staphylococcus aureus is the most common cause of staph infections and is the third most common cause of infections in the newborn nursery and surgical wards. [1] It is a primary cause of