Free Bacteria Essays and Papers

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

There are billions of other species and among those billions of species there is a few known as bacteria and protists. These microscopic living things are everywhere. They can be found in moist areas, suitable temperature and sometimes even when there is absolutely no sunlight. But of course these atomic organisms aren’t exactly the same. In fact they have many differences along with many similarities. Bacteria are single celled organisms that can be mostly found on most materials and surface. There are

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

to its host. In order to get a Klebsiella infection one would have to be exposed to the bacteria; either by person to person contact, or by coming into contact with a contaminated piece of equipment in a healthcare setting. For example, patients may have been exposed to Klebsiella while they were on ventilators, or had intravenous catheters or open wounds resulting in bloodstream infections. After the bacteria have found its way into the body it can cause many different types of infections. Rarely

Bacteria Bacteria are the most common and ancient microorganisms on earth. Most bacteria are microscopic, measuring 1 micron in length. However, colonies of bacteria grown in a laboratory petri dish can be seen with the unaided eye. There are many divisions and classifications of bacteria that assist in identifying them. The first two types of bacteria are archaebacteria and eubacteria. Both groups have common ancestors dating to more than 3 billion years ago. Archaebacteria live in environments

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

idea by explaining the current overuse and misuse of antibiotics and antimicrobial agents and how these affect bacteria and us. First, the video explained that viruses and bacteria can both make us sick but they are different. Viruses and bacteria cannot both be treated with antibiotics. Viruses need a host cell, are smaller, and unable to be treated with use of antibiotics. Bacteria are larger, independent living, have generation time of 20-30 minutes, and unlike viruses, many play an important

Part A: Bacteria vs. Virus Bacteria are known to have distinct structural characteristics and evolutionary lineage. Rods (bacilli) and cocci (spheres) are common bacterial shapes. In addition, bacteria may be comma-shaped (vibrio), spiral (spirillum and spirochetes), or filamentous; they may form buds and stalks; or they may have no characteristic shape (pleomorphic). Some cells remain together after division to form pairs, chains, and clusters of various sizes and shapes. Frequently observed

Differences; Bacteria vs Viruses Viruses and bacteria both aren’t just restricted to humans but also affect animals too. Viruses that affect animals include; Alphaviruses and Pestiviruses. Bacteria that affects animals include; Campylobacter and Listeria. Bacteria and viruses both have the ability to cause illness whilst Bacteria can be ‘good’ on occasion whilst viruses always trigger an immune response and therefore cannot be healthy. Viruses are 10-100 times smaller than bacteria which is a large

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