Bacteria

Hygiene: Bacteria and Mold ” When someone swallows bacteria that cause food poisoning, there is a delay (incubation period) before symptoms begin.” (Food Poisoning Bacteria). Hygiene is the main reason for why go bad so quickly. When fruits , vegetables, and meats is not washed or cleaned properly the bacteria inside and outside start to grow, and when you consume the product you get sick. If the public were aware of how to cook, clean, and check expiration dates properly, then they would be a…

The goal of this experiment was to isolate bacteria on a nutrient agar (NA) plate to obtain pure colonies of the unknown specimen. This study was done by applying the methods learned in Professor Sprenkles microbiology lab in determining the unknown bacterial growth present with use of pure culture colony morphology, cell morphology and arrangement, and Gram reaction. MATERIALS AND METHODS The methods that have been taught for identifying a bacteria have been applied to determine the unknown…

paradigm for Nanomachines to exchange information. Due to some of the biological properties, bacteria have been proposed as a carrier for molecular communication, such communication networks are known as bacterial Nanonetworks. The biological property of bacteria is ability to mobilize and carry the information encoded in deoxyribonucleic acid molecules. Bacteria have social characteristic, which provides bacteria to evolve in fluctuating environment using cooperative and non-cooperative…

Pathogenic bacteria species have been resistant to antibiotics before humans even made antibiotics. These bacterial samples which have displayed natural antibiotic resistance are as such due to genetic variation and mutations. When a bacterial species is exposed to an antibiotic, there is a selective pressure working against the majority which is not resistant. This leads to a decrease in the population of non-resistant bacteria yet an increase in the population of resistant bacteria since they…

Most people also tolerate penicillin very well, though a small number of people are allergic ("Penicillin allergy - Symptoms and causes", 2018). As you may know, bacterial cells have cell walls containing peptidoglycan. When bacteria divide, holes actually appear in their cell walls that must be filled with peptidoglycan. However, penicillin inhibits proteins that are needed to link the peptidoglycan together. So when bacterial cells try to divide when penicillin is present, the holes in the…

antibiotic that prevents gram positive bacteria from forming peptidoglycan. Peptidoglycan plays a key role in the cell wall. If peptidoglycan was not present, then the bacterium would swell and burst due to the high internal pressure. Cephalosporin is another antibiotic that works against gram positive bacteria as they prevent the bacteria walls from synthesis. Sulfamethoxazole and Sulfisoxazole are antibiotics that are also effective in working against gram positive bacteria.…

Bacteria are single celled organisms which thrive in a wide range of environments. For example they can live in soil, the ocean and the human and animal gastrointestinal tract. Bacteria are also able to live in extreme environments such as the harsh cold and some deserts. Bacteria can be harmful, resulting in serious health issues such as pneumonia. (Bacteria, n.d.)However they can also be very beneficial. Certain bacteria aid in digestion and other processes in the human body. There are two…

Second Rule” Affect the Amount of Bacteria on Food? Background Information Many people have heard of the “five second rule,” a saying that refers to the common belief that if one drops a piece of food on a floor or other surface, germs will not have time to adhere to the food if picked up within five seconds. This idea is supported by Hilton (2014) who did research and found that “food picked up just a few seconds after being dropped is less likely to contain bacteria than if it is left for…

Although bacteria are often seen as something that is bad for you, it can also be good. In fact, it is in your stomach; it’s practically everywhere. To test the ubiquity of bacteria, my class and I conducted an experiment. We sampled random surfaces like ears, mouths, cell phones, soil, shoe, desk, bathroom door handles, and as our constant variable we left one side of our TSA plate blank. This should tell us whether or not our hypothesis is correct. My hypothesis was, “bacteria is found in…

Introduction: Bacteria and Fungi are important contributors of the living life. They however differ in their colony/ color/ size/shape/appearance. Bacteria are generally small in size but large in colonial structure, they are usually in the form of coccus, bacillus and spirillum, many times bacteria are of vivid colors because they have chlorophyll which also absorbs the light of different wavelengths which create natural colors of brown, pink, blue, orange and purple. Fungi on the other…